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Zink DN, Kuwabara H, Reyes E, Gomez-Batista S, Reyes A, Alvarez E, Strauss GP, Allen DN. Influence of Acculturation on Emotional Learning and Memory in Spanish and English Speakers. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz029.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objective
The Emotional Verbal Learning Test-Spanish (EVLT-S) is a novel list learning test similar in structure to traditional verbal memory tests but contains words from 4 discrete emotional categories. Influence of acculturation on emotional learning was examined on EVLT-S learning trials 1 to 5.
Participants and Method
Participants included 50 bilingual healthy individuals in the Spanish-dominant group (Age M = 20.3years; 72% female) and 27 in the English-dominant group (Age M = 23.4years, 51.9% female). They were administered a battery of tests including the EVLT, a non-emotional verbal list learning test (LLT), Vocabulary (VC), Digit Span (DS), and The Short Acculturation Scale for Hispanics (SASH) in their dominant language. To examine learning curves a mixed model ANOVA was conducted with test (EVLT-S/EVLT, LLT-S/LLT) and trial as within-subjects variables and group (Spanish, English) as a between-subjects variable.
Results
There were significant main effects (p < .005) for test, trial, and group. The Spanish-dominant group had the lowest overall performance on the EVLT-S (main effect for group). Post hoc comparisons of the Spanish-dominant group’s LLT-S and EVLT-S performance indicated significant differences at each trail (p < .01), with the EVLT-S scores being lower than the LLT-S scores. The ANOVA was repeated with VC, DS, and SASH included as covariates. When controlling for these variables, the main effect for group was no longer significant. A significant trial by acculturation interaction effect emerged (p<.05), with the English-dominant group generally performing better than the Spanish-dominant group.
Conclusions
Results suggest that Spanish and English language group differences were largely accounted for by word knowledge (VC), working memory (DS), and acculturation differences (SASH) between the groups. The role of these variables is discussed further in the context of acculturation.
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Zink DN, Reyes E, Kuwabara H, Strauss GP, Allen DN. Factorial Validity of the Emotional Verbal Learning Test-Spanish (EVLT-S). Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz029.50] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objective
The EVLT-S is the Spanish translation of a novel measure of emotional verbal learning and memory. The current study aimed to preliminarily examine the factorial validity of the EVLT-S to determine if its latent structure was similar to that identified for the EVLT by Strauss and Allen (2013) in a sample of 329 English speakers.
Participants and Method
Two principal component analyses (PCAs) were conducted to examine the latent structure of the EVLT-S. The first PCA examined EVLT/EVLT-S performance in a combined sample of English language-dominant participants (n = 52; Age M = 23.1 years; Education M = 13.4 years; 32.7% White non-Hispanic, 36.5% Hispanic, and 30.8 % other; 55.8% female) and Spanish language-dominant participants (n = 50; Age M = 20.3 years; Education M = 12.8 years; 98% Hispanic and 2% other; 72% female). The second PCA was conducted with the Spanish dominant sample alone (n = 50). PCAs were conducted using comparable scores and procedures reported by Strauss and Allen (2013), including scores for the four emotion categories (happiness, sadness, anger, anxiety), varimax rotation, and Kaiser-Guttman criteria to determine the number of components, allowing for direct comparisons between the current results and those previously reported.
Results
Both PCA’s identified five components that accounted for 68.6 – 70.4 percent of the variance and attained simple structure. Based on factor loadings, these components were labeled Anger, Sadness, Happiness, Anxiety, and Short-Term Memory (STM).
Conclusions
The PCA analyses in this study were exploratory in nature but were remarkably consistent with prior results attained in a much larger sample (n = 329) of English speakers. Results provide preliminary support for a stable and generalizable EVLT latent structure in Spanish and English versions. Future studies with larger samples using confirmatory factor analyses are needed to further establish the factorial validity of the EVLT-S.
References
Strauss, G. P., & Allen, D. N. (2013). Emotional Verbal Learning Test: development and psychometric properties. Archives of clinical neuropsychology, 28(5), 435-451.
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Vargas T, Ahmed AO, Strauss GP, Brandes CM, Walker EF, Buchanan RW, Gold JM, Mittal VA. The latent structure of depressive symptoms across clinical high risk and chronic phases of psychotic illness. Transl Psychiatry 2019; 9:229. [PMID: 31527596 PMCID: PMC6746855 DOI: 10.1038/s41398-019-0563-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/27/2019] [Accepted: 07/07/2019] [Indexed: 11/21/2022] Open
Abstract
Depressive symptoms are highly prevalent in psychotic populations and result in significant functional impairment. Limited knowledge of whether depressive symptoms are invariant across stages of illness curtails our ability to understand how these relate to illness progression. Clarifying the latent structure of depressive symptoms across stages of illness progression would aid etiological conceptualizations and preventive models. In the present study, one-factor (including all items) and two-factor (depression/hopelessness and guilt/self-depreciation) solutions were specified through confirmatory factor analysis (CFA). Measurement invariance analyses were undertaken across schizophrenia (SCZ; n = 312) and clinical high-risk (CHR; n = 175) groups to estimate whether the same construct is being measured across groups. Clinical correlates of the factors were examined. Results indicated that CHR individuals had a greater proportion of mood disorder diagnoses. Metric invariance held for the one-factor solution, and scalar invariance held for the two-factor solution. Notably, negative symptoms did not correlate with depressive symptoms in the SCZ group, though strong correlations were observed in CHR individuals. Positive symptoms were comparably associated with depressive symptoms in both groups. Results suggest depressive symptoms are more prevalent in CHR individuals. Targeting these symptoms may aid future efforts to identify risk of conversion. Further, some depressive symptoms may be systematically more endorsed in CHR individuals. Separating into depression/hopelessness and guilt/self-depreciation scores may aid comparability across stages of illness progression, though this issue deserves careful attention and future study.
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Affiliation(s)
- Teresa Vargas
- Northwestern University Department of Psychology, Evanston, IL, 60208, USA.
| | | | | | | | | | | | - James M Gold
- University of Maryland, Baltimore County, MD, 20742, USA
| | - Vijay A Mittal
- Northwestern University Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, and Institute for Innovations in Developmental Sciences, Evanston, IL, 60208, USA
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104
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Strauss GP, Esfahlani FZ, Galderisi S, Mucci A, Rossi A, Bucci P, Rocca P, Maj M, Kirkpatrick B, Ruiz I, Sayama H. Network Analysis Reveals the Latent Structure of Negative Symptoms in Schizophrenia. Schizophr Bull 2019; 45:1033-1041. [PMID: 30256991 PMCID: PMC6737465 DOI: 10.1093/schbul/sby133] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Prior studies using exploratory factor analysis provide evidence that negative symptoms are best conceptualized as 2 dimensions reflecting diminished motivation and expression. However, the 2-dimensional model has yet to be evaluated using more complex mathematical techniques capable of testing structure. In the current study, network analysis was applied to evaluate the latent structure of negative symptoms using a community-detection algorithm. Two studies were conducted that included outpatients with schizophrenia (SZ; Study 1: n = 201; Study 2: n = 912) who were rated on the Brief Negative Symptom Scale (BNSS). In both studies, network analysis indicated that the 13 BNSS items divided into 6 negative symptom domains consisting of anhedonia, avolition, asociality, blunted affect, alogia, and lack of normal distress. Separation of these domains was statistically significant with reference to a null model of randomized networks. There has been a recent trend toward conceptualizing the latent structure of negative symptoms in relation to 2 distinct dimensions reflecting diminished expression and motivation. However, the current results obtained using network analysis suggest that the 2-dimensional conceptualization is not complex enough to capture the nature of the negative symptom construct. Similar to recent confirmatory factor analysis studies, network analysis revealed that the latent structure of negative symptom is best conceptualized in relation to the 5 domains identified in the 2005 National Institute of Mental Health consensus development conference (anhedonia, avolition, asociality, blunted affect, and alogia) and potentially a sixth domain consisting of lack of normal distress. Findings have implications for identifying pathophysiological mechanisms and targeted treatments.
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Affiliation(s)
| | - Farnaz Zamani Esfahlani
- Department of Systems Science and Industrial Engineering & Center for Collective Dynamics of Complex Systems, Binghamton University, Binghamton, NY
| | - Silvana Galderisi
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Armida Mucci
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Alessandro Rossi
- Section of Psychiatry, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Paola Bucci
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Paola Rocca
- Section of Psychiatry, Department of Neuroscience, University of Turin, Turin, Italy
| | - Mario Maj
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Brian Kirkpatrick
- Department of Psychiatry and Behavioral Sciences, University of Nevada, Reno School of Medicine, Reno, NV
| | - Ivan Ruiz
- Department of Psychology, University of Georgia, Athens, GA
| | - Hiroki Sayama
- Department of Systems Science and Industrial Engineering & Center for Collective Dynamics of Complex Systems, Binghamton University, Binghamton, NY
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105
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Azis M, Strauss GP, Walker E, Revelle W, Zinbarg R, Mittal V. Factor Analysis of Negative Symptom Items in the Structured Interview for Prodromal Syndromes. Schizophr Bull 2019; 45:1042-1050. [PMID: 30535399 PMCID: PMC6737478 DOI: 10.1093/schbul/sby177] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Negative symptoms occur early in the clinical high risk (CHR) state and indicate increased risk of conversion to psychotic disorder and poor functional outcome. However, while the negative symptom domain has shown to be parsimoniously explained by a 2-factor construct in schizophrenia, there has yet to be an established factor structure of negative symptoms in CHR. METHODS 214 individuals meeting the Structured Interview for Psychosis-Risk Syndromes (SIPS) criteria for CHR were recruited through 3 active research programs in the United States. Exploratory Factor Analysis was conducted on the 6 negative symptom items of the SIPS, and factors were evaluated with respect to functional outcome and depression. RESULTS Factor analysis indicated a 2-factor hierarchical model with 2 negative symptom dimensions reflecting volition (Occupational Functioning and Avolition) and emotion (Expression of Emotion, Experience of Emotion and Social Anhedonia). Linear Regression showed that the emotion factor was associated with poor social function, and the volition factor was associated with poor role function and depression. CONCLUSIONS Similar to factor solutions identified in adults diagnosed with psychotic disorders, results indicated that the SIPS negative symptom subscale is not a unidimensional construct. Rather, the SIPS negative subscale has 2 distinct factors that have different associations with clinical outcome and should be interpreted independently. Results have significant relevance for informing the valid assessment and conceptual interpretation of early clinical phenomenology in the psychosis prodrome.
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Affiliation(s)
- Matilda Azis
- Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, Institute for Innovations in Developmental Sciences, Northwestern University, Evanston, IL
| | | | - Elaine Walker
- Department of Psychology and Psychiatry, Emory University, Atlanta, GA
| | - William Revelle
- Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, Institute for Innovations in Developmental Sciences, Northwestern University, Evanston, IL
| | - Richard Zinbarg
- Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, Institute for Innovations in Developmental Sciences, Northwestern University, Evanston, IL
| | - Vijay Mittal
- Department of Psychology, Department of Psychiatry, Department of Medical Social Sciences, Institute for Policy Research, Institute for Innovations in Developmental Sciences, Northwestern University, Evanston, IL
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106
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Abstract
BACKGROUND Disturbances in trait emotions are a predominant feature in schizophrenia. However, less is known about (a) differences in trait emotion across phases of the illness such as the clinical high-risk (CHR) phase and (b) whether abnormalities in trait emotion that are associated with negative symptoms are driven by primary (i.e. idiopathic) or secondary (e.g. depression, anxiety) factors. AIMS To examine profiles of trait affective disturbance and their clinical correlates in individuals with schizophrenia and individuals at CHR for psychosis. METHOD In two studies (sample 1: 56 out-patients diagnosed with schizophrenia and 34 demographically matched individuals without schizophrenia (controls); sample 2: 50 individuals at CHR and 56 individuals not at CHR (controls)), participants completed self-report trait positive affect and negative affect questionnaires, clinical symptom interviews (positive, negative, disorganised, depression, anxiety) and community-based functional outcome measures. RESULTS Both clinical groups reported lower levels of positive affect (specific to joy among individuals with schizophrenia) and higher levels of negative affect compared with controls. For individuals with schizophrenia, links were found between positive affect and negative symptoms (which remained after controlling for secondary factors) and between negative affect and positive symptoms. For individuals at CHR, links were found between both affect dimensions and both types of symptom (which were largely accounted for by secondary factors). CONCLUSIONS Both clinical groups showed some evidence of reduced trait positive affect and elevated trait negative affect, suggesting that increasing trait positive affect and reducing trait negative affect is an important treatment goal across both populations. Clinical correlates of these emotional abnormalities were more integrally linked to clinical symptoms in individuals with schizophrenia and more closely linked to secondary influences such as depression and anxiety in individuals at CHR. DECLARATION OF INTEREST None.
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Affiliation(s)
- Claire I Yee
- Postdoctoral Fellow, Department of Psychology and School of Education and Social Policy, Northwestern University, USA
| | - Gregory P Strauss
- Assistant Professor, Department of Psychology, University of Georgia, USA
| | - Daniel N Allen
- Director of Clinical Training, Department of Psychology, University of Nevada, USA
| | - Claudia M Haase
- Assistant Professor, School of Education and Social Policy, Northwestern University, USA
| | - David Kimhy
- Associate Professor, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, USA
| | - Vijay A Mittal
- Associate Professor, Department of Psychology, Northwestern University, USA
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107
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Greene HH, Brown JM, Strauss GP. The robust vertical visual field asymmetry for pre-saccadic fixation durations: A meta-analysis. J Vis 2019. [DOI: 10.1167/19.10.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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108
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Strauss GP, Granholm E, Holden JL, Ruiz I, Gold JM, Kelly DL, Buchanan RW. The effects of combined oxytocin and cognitive behavioral social skills training on social cognition in schizophrenia. Psychol Med 2019; 49:1731-1739. [PMID: 30180918 DOI: 10.1017/s0033291718002465] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Individuals with schizophrenia have deficits in social cognition that are associated with poor functional outcome. Unfortunately, current treatments result in only modest improvement in social cognition. Oxytocin, a neuropeptide with pro-social effects, has significant benefits for social cognition in the general population. However, studies examining the efficacy of oxytocin in schizophrenia have yielded inconsistent results. One reason for inconsistency may be that oxytocin has typically not been combined with psychosocial interventions. It may be necessary for individuals with schizophrenia to receive concurrent psychosocial treatment while taking oxytocin to have the context needed to make gains in social cognitive skills. METHODS The current study tested this hypothesis in a 24-week (48 session) double-blind, placebo-controlled trial that combined oxytocin and Cognitive-Behavioral Social Skills Training (CBSST), which included elements from Social Cognition and Interaction Training (SCIT). Participants included 62 outpatients diagnosed with schizophrenia (placebo n = 31; oxytocin n = 31) who received 36 IU BID, with supervised administration 45 min prior to sessions on CBSST group therapy days. Participants completed a battery of measures administered at 0, 12, and 24 weeks that assessed social cognition. RESULTS CBSST generally failed to enhance social cognition from baseline to end of study, and there was no additive benefit of oxytocin beyond the effects of CBSST alone. CONCLUSIONS Findings suggest that combined CBSST and oxytocin had minimal benefit for social cognition, adding to the growing literature indicating null effects of oxytocin in multi-dose trials. Methodological and biological factors may contribute to inconsistent results across studies.
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Affiliation(s)
| | - Eric Granholm
- VA San Diego Healthcare System, Department of Psychiatry,University of California San Diego School of Medicine,San Diego, CA,USA
| | - Jason L Holden
- VA San Diego Healthcare System, Department of Psychiatry,University of California San Diego School of Medicine,San Diego, CA,USA
| | - Ivan Ruiz
- Department of Psychology,University of Georgia,Athens, GA,USA
| | - James M Gold
- Department of Psychiatry,Maryland Psychiatric Research Center, University of Maryland School of Medicine,Baltimore, MD,USA
| | - Deanna L Kelly
- Department of Psychiatry,Maryland Psychiatric Research Center, University of Maryland School of Medicine,Baltimore, MD,USA
| | - Robert W Buchanan
- Department of Psychiatry,Maryland Psychiatric Research Center, University of Maryland School of Medicine,Baltimore, MD,USA
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109
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Strauss GP, Ahmed AO, Young JW, Kirkpatrick B. Reconsidering the Latent Structure of Negative Symptoms in Schizophrenia: A Review of Evidence Supporting the 5 Consensus Domains. Schizophr Bull 2019; 45:725-729. [PMID: 30541136 PMCID: PMC6581128 DOI: 10.1093/schbul/sby169] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Gregory P Strauss
- Department of Psychology, University of Georgia, Athens, GA,To whom correspondence should be addressed; 125 Baldwin St., Athens, GA 30602; tel: 1-706-542-0307, fax: 1-706-542-3275, e-mail:
| | - Anthony O Ahmed
- Department of Psychiatry, Weill Cornell Medicine, New York, NY
| | - Jared W Young
- Department of Psychiatry, University of California San Diego, La Jolla, CA
| | - Brian Kirkpatrick
- Department of Psychiatry, Reno School of Medicine, University of Nevada, Reno, NV
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110
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Bartolomeo LA, Erickson MA, Arnold LE, Strauss GP. FRONTAL ALPHA ASYMMETRY IN YOUTH AT CLINICAL HIGH-RISK FOR PSYCHOSIS. Curr Behav Neurosci Rep 2019; 6:21-26. [PMID: 31857941 PMCID: PMC6922025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
PURPOSE OF THE REVIEW Negative symptoms are highly predictive of whether individuals at clinical high-risk (CHR) develop a psychotic disorder. However, little is known about pathophysiological mechanisms underlying negative symptoms during this period. The current study examined neurophysiological mechanisms underlying negative symptoms in CHR individuals using electroencephalography frontal alpha asymmetry power, a biomarker of approach and avoidance motivation. RECENT FINDINGS People with schizophrenia display abnormal patterns of frontal alpha asymmetry indicative of reduced approach motivation. However, It is unknown whether similar abnormalities occur in CHR youth that predict negative symptoms. SUMMARY Results indicated that CHR and healthy controls did not differ in frontal alpha asymmetry scores. However, in CHR youth, frontal alpha asymmetry was inversely correlated with the motivation and pleasure dimension of negative symptoms, which was accounted for by mood symptoms. Findings suggest that depression contributes to reduced approach motivation in CHR youth that manifests clinically as negative symptoms.
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Affiliation(s)
| | - Molly A. Erickson
- University Behavioral HealthCare, Department of Psychiatry, Rutgers University, Piscataway, New Jersey
| | - Lauren E. Arnold
- Department of Psychology, University of Georgia, Athens, GA, USA
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111
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Raugh IM, Chapman HC, Bartolomeo LA, Gonzalez C, Strauss GP. A comprehensive review of psychophysiological applications for ecological momentary assessment in psychiatric populations. Psychol Assess 2019; 31:304-317. [PMID: 30802116 DOI: 10.1037/pas0000651] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Psychophysiological assessment is a core method used in psychopathology research that has led to important insights in relation to the etiology and maintenance of many disorders. However, laboratory psychophysiology has limited ecological validity. This limitation has resulted in the field moving toward ambulatory recordings of psychophysiology paired with ecological momentary assessment (EMA). This review uses the results of a comprehensive review of EMA psychophysiology studies to discuss applications, advantages, limitations, and future use of this methodology, including electrocardiography, blood pressure, electroencephalography, and more. Mobile psychophysiology has several advantages, including ecological validity, temporal precision, and concurrent evaluation of internally and externally generated contexts that influence physiological response. However, it is limited by the difficulty of conducting such studies and reduced experimental control. Future research using EMA psychophysiology should aim to record over longer periods, better integrate with everyday life, determine the utility of ecological momentary interventions based on psychophysiology, create guidelines for standardization, and aim to establish reliability and validity. EMA psychophysiology is a promising direction for the field and provides novel avenues for research and treatment of psychopathology, although methodological shortcomings must be addressed. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
- Ian M Raugh
- Department of Psychology, University of Georgia
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112
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Strauss GP, Chapman HC, Keller WR, Koenig JI, Gold JM, Carpenter WT, Buchanan RW. Endogenous oxytocin levels are associated with impaired social cognition and neurocognition in schizophrenia. J Psychiatr Res 2019; 112:38-43. [PMID: 30849617 DOI: 10.1016/j.jpsychires.2019.02.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 01/20/2023]
Abstract
Intranasal administration of the neuropeptide oxytocin (OT) has yielded inconsistent effects on social cognition and general cognition in individuals with schizophrenia (SZ). Few studies have examined whether endogenous peripheral OT levels are also associated with social and general cognition in SZ. The current study examined whether plasma OT levels are associated with performance on a higher-order social cognition measure (i.e., a task that requires inferential processes and knowledge not directly presented in social stimuli), as well as domains of general cognition. Participants included 30 individuals with SZ and 21 demographically matched healthy controls (CN). The MATRICS Consensus Cognitive Battery was administered to assess neuropsychological impairment in relation to 7 domains (processing speed, attention/vigilance, working memory, verbal learning, visual learning, reasoning/problem solving, and social cognition). Plasma OT levels were measured via radioimmunoassay. SZ had significantly lower endogenous OT levels and poorer MCCB performance on all 7 domains than CN. In CN and SZ, lower endogenous OT was associated with poorer social cognition. In SZ, lower endogenous OT was also associated with poorer processing speed and working memory. The significant association between OT and social cognition in both CN and SZ highlights the importance of endogenous OT levels as a biological predictor of social cognition, irrespective of clinical status. Significant associations between plasma OT and general neurocognition may reflect either an anxiolytic effect of plasma OT that results in better neurocognitive performance, or OT's action on dopamine and enhancement of dopamine tone that results in improved cognition.
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Affiliation(s)
| | | | - William R Keller
- Dartmouth College Geisel School of Medicine, Department of Psychiatry, USA
| | - James I Koenig
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center, USA
| | - James M Gold
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center, USA
| | - William T Carpenter
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center, USA
| | - Robert W Buchanan
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center, USA
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113
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Chang WC, Chu AOK, Treadway MT, Strauss GP, Chan SKW, Lee EHM, Hui CLM, Suen YN, Chen EYH. Effort-based decision-making impairment in patients with clinically-stabilized first-episode psychosis and its relationship with amotivation and psychosocial functioning. Eur Neuropsychopharmacol 2019; 29:629-642. [PMID: 30879927 DOI: 10.1016/j.euroneuro.2019.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/06/2018] [Accepted: 03/02/2019] [Indexed: 12/14/2022]
Abstract
Effort-based decision-making has recently been proposed as a potential mechanism contributing to motivational deficits (amotivation) in psychotic disorder. Previous research has identified altered effort allocation in chronic schizophrenia, but produced mixed results regarding its relationship with amotivation. No study has investigated effort allocation in first-episode psychosis (FEP). We examined effort-based decision-making in 45 clinically-stabilized FEP patients and 45 demographically-matched controls, using Effort-Expenditure for Reward Task (EEfRT) which measures allocation of physical effort for monetary reward at varying magnitude and probability levels. Our results showed that FEP patients did not demonstrate overall reduction in effort expenditure but displayed reduced willingness to expend effort for high-value/high-probability reward as compared to controls. In particular, such selective effort-related impairment was most pronounced in patients with high levels of amotivation. Furthermore, reduced allocation of greater effort for higher probability reward was related to poorer psychosocial functioning. Decreased effort exertion was generally unrelated to other symptom dimensions, self-report anhedonia, antipsychotic dose and cognitive deficits. This study thus provides the first evidence of effort-based decision-making impairment in FEP, and indicates that first-episode patients were not generally effort-averse but exhibited inefficient effort allocation by failing to make high-effort choices to maximize reward receipt. Our findings affirm the critical role of amotivation on aberrant effort allocation, and support the link between laboratory-based effort-cost measures and real-world psychosocial functioning in medicated FEP. Further longitudinal research is required to clarify trajectory of suboptimal effort allocation and its potential utility in predicting amotivation and functional outcomes in the early course of illness.
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Affiliation(s)
- Wing Chung Chang
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong; State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Hong Kong.
| | - Angel On Ki Chu
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong
| | - Michael T Treadway
- Department of Psychology, University of Emory, Atlanta, GA 30322, United States
| | - Gregory P Strauss
- Department of Psychology, University of Georgia, Athens, GA 30602, United States
| | - Sherry Kit Wa Chan
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong; State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Hong Kong
| | - Edwin Ho Ming Lee
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong
| | - Christy Lai Ming Hui
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong
| | - Yi Nam Suen
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong
| | - Eric Yu Hai Chen
- Department of Psychiatry, University of Hong Kong, Queen Mary Hospital, 102 Pok Fu Lam Road, Pok Fu Lam, Hong Kong; State Key Laboratory of Brain and Cognitive Sciences, University of Hong Kong, Hong Kong
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114
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Gupta T, Haase CM, Strauss GP, Cohen AS, Mittal VA. Alterations in facial expressivity in youth at clinical high-risk for psychosis. J Abnorm Psychol 2019; 128:341-351. [PMID: 30869926 DOI: 10.1037/abn0000413] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Negative symptoms, such as blunted facial affect, are core features of psychotic disorders that predict poor functional outcome. However, it is unknown whether these impairments occur prior to the onset of psychosis. Understanding this phenomenon in the psychosis risk period has significant relevance for elucidating pathogenic processes, as well as potential for informing a viable new behavioral marker for broader social dysfunction and clinical course. The current study sought to determine the nature of facial expression deficits among individuals at clinical high-risk (CHR) for developing psychosis using a comprehensive approach, incorporating clinical interview ratings and automated facial expression coding analysis. A total of 42 CHR and 42 control participants completed clinical interviews and digitally taped segments were submitted into an automated, computerized tool to assess for 7 facial expressions (joy, anger, surprise, fear, contempt, disgust, sadness). Furthermore, relationships between facial expressions and social functioning and available scores on a psychosis conversion risk calculator from a total of 78 participants (39 CHR and 39 controls) were examined. Relationships between measures were also investigated (data was available for the Prodromal Inventory of Negative Symptoms among 33 CHR and 25 controls). Findings from clinical interview indicated that the CHR group exhibited elevated blunting. Furthermore, automated analyses showed that the CHR group displayed blunting in expressions of joy but surprisingly, increased anger facial expressions. Lastly, irregularities in facial expressions were related to decreased social functioning and increased psychosis conversion risk calculator scores, signaling heightened likelihood of conversion to psychosis. These findings suggest that alterations in facial expressivity occur early in the pathogenesis of psychosis and provide evidence for the efficacy of higher resolution measures of facial expressivity in psychosis research. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Affiliation(s)
- Tina Gupta
- Department of Psychology, Northwestern University
| | | | | | - Alex S Cohen
- Department of Psychology, Louisiana State University
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115
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Ahmed AO, Kirkpatrick B, Galderisi S, Mucci A, Rossi A, Bertolino A, Rocca P, Maj M, Kaiser S, Bischof M, Hartmann-Riemer MN, Kirschner M, Schneider K, Garcia-Portilla MP, Mane A, Bernardo M, Fernandez-Egea E, Jiefeng C, Jing Y, Shuping T, Gold JM, Allen DN, Strauss GP. Cross-cultural Validation of the 5-Factor Structure of Negative Symptoms in Schizophrenia. Schizophr Bull 2019; 45:305-314. [PMID: 29912473 PMCID: PMC6403061 DOI: 10.1093/schbul/sby050] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE Negative symptoms are currently viewed as having a 2-dimensional structure, with factors reflecting diminished expression (EXP) and motivation and pleasure (MAP). However, several factor-analytic studies suggest that the consensus around a 2-dimensional model is premature. The current study investigated and cross-culturally validated the factorial structure of BNSS-rated negative symptoms across a range of cultures and languages. METHOD Participants included individuals diagnosed with a psychotic disorder who had been rated on the Brief Negative Symptom Scale (BNSS) from 5 cross-cultural samples, with a total N = 1691. First, exploratory factor analysis was used to extract up to 6 factors from the data. Next, confirmatory factor analysis evaluated the fit of 5 models: (1) a 1-factor model, 2) a 2-factor model with factors of MAP and EXP, 3) a 3-factor model with inner world, external, and alogia factors; 4) a 5-factor model with separate factors for blunted affect, alogia, anhedonia, avolition, and asociality, and 5) a hierarchical model with 2 second-order factors reflecting EXP and MAP, as well as 5 first-order factors reflecting the 5 aforementioned domains. RESULTS Models with 4 factors or less were mediocre fits to the data. The 5-factor, 6-factor, and the hierarchical second-order 5-factor models provided excellent fit with an edge to the 5-factor model. The 5-factor structure demonstrated invariance across study samples. CONCLUSIONS Findings support the validity of the 5-factor structure of BNSS-rated negative symptoms across diverse cultures and languages. These findings have important implications for the diagnosis, assessment, and treatment of negative symptoms.
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Affiliation(s)
- Anthony O Ahmed
- Department of Psychiatry, Weill Cornell Medicine, White Plains, NY,To whom correspondence should be addressed; tel: 914-997-5251, fax: 914-682-6906, e-mail:
| | - Brian Kirkpatrick
- Department of Psychiatry and Behavioral Sciences, University of Nevada, Reno School of Medicine, Reno, NV
| | - Silvana Galderisi
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Armida Mucci
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Alessandro Rossi
- Department of Biotechnological and Applied Clinical Sciences, Section of Psychiatry, University of L’Aquila, L’Aquila, Italy
| | - Alessandro Bertolino
- Department of Neurological and Psychiatric Sciences, University of Bari, Bari, Italy
| | - Paola Rocca
- Department of Neuroscience, Section of Psychiatry, University of Turin, Turin, Italy
| | - Mario Maj
- Department of Psychiatry, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Stefan Kaiser
- Division of Adult Psychiatry, Department of Mental Health and Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | - Martin Bischof
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Matthias N Hartmann-Riemer
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Matthias Kirschner
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Karoline Schneider
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Zurich, Switzerland
| | - Maria Paz Garcia-Portilla
- Department of Psychiatry, University of Oviedo, Oviedo, Spain,Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Madrid, Spain
| | - Anna Mane
- Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Madrid, Spain,Institut de Neuropsiquiatria i Adiccions, Parc de Salut Mar, Barcelona, Spain,Fundació IMIM, Barcelona, Spain
| | - Miguel Bernardo
- Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Madrid, Spain,Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Barcelona, Spain,Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Psychiatry Unit, Department of Medicine, University of Barcelona, Barcelona, Spain
| | - Emilio Fernandez-Egea
- Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Madrid, Spain,Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain,Department of Psychiatry, Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK,Clozapine Clinic. Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK
| | - Cui Jiefeng
- Psychiatry Research Center, Beijing Huilongguan Hospital, Peking University Huilongguan Clinical College, Beijing, China
| | - Yao Jing
- Psychiatry Research Center, Beijing Huilongguan Hospital, Peking University Huilongguan Clinical College, Beijing, China
| | - Tan Shuping
- Psychiatry Research Center, Beijing Huilongguan Hospital, Peking University Huilongguan Clinical College, Beijing, China
| | - James M Gold
- Department of Psychiatry, University of Maryland School of Medicine and Maryland Psychiatric Research Center, Baltimore, MD
| | - Daniel N Allen
- Department of Psychology, University of Nevada, Las Vegas, Las Vegas, NV
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116
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Cohen AS, Schwartz E, Le TP, Fedechko T, Kirkpatrick B, Strauss GP. Using biobehavioral technologies to effectively advance research on negative symptoms. World Psychiatry 2019; 18:103-104. [PMID: 30600611 PMCID: PMC6313243 DOI: 10.1002/wps.20593] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Alex S. Cohen
- Department of PsychologyLouisiana State UniversityBaton RougeLAUSA
| | - Elana Schwartz
- Department of PsychologyLouisiana State UniversityBaton RougeLAUSA
| | - Thanh P. Le
- Department of PsychologyLouisiana State UniversityBaton RougeLAUSA
| | - Taylor Fedechko
- Department of PsychologyLouisiana State UniversityBaton RougeLAUSA
| | - Brian Kirkpatrick
- Department of Psychiatry and Behavioral SciencesReno School of Medicine, University of NevadaRenoNVUSA
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117
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Abstract
IMPORTANCE Negative symptoms are associated with a range of poor clinical outcomes, and currently available treatments generally do not produce a clinically meaningful response. Limited treatment progress may be owing in part to poor clarity regarding latent structure. Prior studies have inferred latent structure using exploratory factor analysis, which has led to the conclusion that there are 2 dimensions reflecting motivation and pleasure (MAP) and diminished expressivity (EXP) factors. However, whether these conclusions are statistically justified remains unclear because exploratory factor analysis does not test latent structure. Confirmatory factor analysis (CFA) is needed to test competing models regarding the latent structure of a construct. OBJECTIVE To evaluate the fit of 4 models of the latent structure of negative symptoms in schizophrenia using CFA. DESIGN, SETTING, AND PARTICIPANTS Three cross-sectional studies were conducted on outpatients with schizophrenia who were rated on the 3 most conceptually contemporary measures: Scale for the Assessment of Negative Symptoms (SANS), Brief Negative Symptom Scale (BNSS), and Clinical Assessment Interview for Negative Symptoms (CAINS). Confirmatory factor analysis evaluated the following 4 models: (1) a 1-factor model; (2) a 2-factor model with EXP and MAP factors; (3) a 5-factor model with separate factors for the 5 domains of the National Institute of Mental Health consensus development conference (blunted affect, alogia, anhedonia, avolition, and asociality); and (4) a hierarchical model with 2 second-order factors reflecting EXP and MAP and 5 first-order factors reflecting the 5 consensus domains. MAIN OUTCOMES AND MEASURES Outcomes included CFA model fit statistics derived from symptom severity scores on the SANS, BNSS, and CAINS. RESULTS The study population included 860 outpatients with schizophrenia (68.0% male; mean [SD] age, 43.0 [11.4] years). Confirmatory factor analysis was conducted on each scale, including 268 patients for the SANS, 192 for the BNSS, and 400 for the CAINS. The 1- and 2-factor models provided poor fit for the SANS, BNSS, and CAINS as indicated by comparative fit indexes (CFIs) and Tucker Lewis indexes (TLIs) less than 0.950, RMSEAs that exceeded the 0.080 threshold, and WRMRs greater than 1.00. The 5-factor and hierarchical models provided excellent fit, with the 5-factor model being more parsimonious. The CFIs and TLIs met the 0.95 threshold and the 1.00 threshold for both factor models with all 3 measures. Interestingly, the RMSEAs for the 5-factor model and the hierarchical model fell under the 0.08 threshold for the BNSS and the CAINS but not the SANS. CONCLUSIONS AND RELEVANCE These findings suggest that the recent trend toward conceptualizing the latent structure of negative symptoms as 2 distinct dimensions does not adequately capture the complexity of the construct. The latent structure of negative symptoms is best conceptualized in relation to the 5 consensus domains. Implications for identifying pathophysiological mechanisms and targeted treatments are discussed.
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Affiliation(s)
| | - Alicia Nuñez
- Department of Psychology, University of Nevada, Las Vegas
| | - Anthony O. Ahmed
- Department of Psychiatry, Weill Cornell Medicine, New York, New York
| | | | - Eric Granholm
- Department of Psychiatry, University of California, San Diego,Psychology Service, Veterans Affairs San Diego Healthcare System, San Diego, California
| | | | - James M. Gold
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore,Maryland Psychiatric Research Center, Catonsville
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118
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Li Y, Li WX, Zou YM, Yang ZY, Xie DJ, Yang Y, Lui SSY, Strauss GP, Cheung EFC, Chan RCK. Revisiting the persistent negative symptoms proxy score using the Clinical Assessment Interview for Negative Symptoms. Schizophr Res 2018; 202:248-253. [PMID: 29996973 DOI: 10.1016/j.schres.2018.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 06/18/2018] [Accepted: 07/01/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The present study aimed to validate a severity cut-off of negative symptoms for persistent negative symptoms (PNS) identification using the Clinical Assessment Interview for Negative Symptoms (CAINS). METHOD A total of 206 patients with schizophrenia were recruited and divided into the PNS group (n = 57) and the Non-PNS group (n = 149) using PNS criteria based on the SANS and the SAPS. To determine the appropriate cut-offs on the CAINS in identifying PNS, Receiver Operating Characteristic (ROC) curve analysis was conducted in the PNS and Non-PNS groups. RESULTS Our results showed that the cutoffs for identifying PNS on the CAINS total score, the Motivation and Pleasure (MAP) subscale score and the Expression (EXP) subscale score were 25, 17, and 5 respectively. Area Under the Curve (AUC) analysis indicated excellent discrimination of the PNS group from the Non-PNS group using the cut-off for the CAINS total score. However, discrimination was somewhat better for the MAP subscale score than the EXP subscale score. The Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of the MAP subscale were 81.54% and 97.16%. CONCLUSION We found that the cut-off scores derived from the CAINS to identify PNS are comparable to existing scales. The CAINS offers an alternative means in identifying PNS patients in clinical trials that overcomes methodological and conceptual limitations of older scales.
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Affiliation(s)
- Ying Li
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; Haidian District Mental Health Prevent-Treatment Hospital, Beijing, China
| | - Wen-Xiu Li
- Haidian District Mental Health Prevent-Treatment Hospital, Beijing, China
| | - Ying-Min Zou
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Zhuo-Ya Yang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Dong-Jie Xie
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yin Yang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
| | - Simon S Y Lui
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Castle Peak Hospital, Hong Kong Special Administrative Region, China
| | - Gregory P Strauss
- Department of Psychology, University of Georgia, United States of America
| | - Eric F C Cheung
- Castle Peak Hospital, Hong Kong Special Administrative Region, China
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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119
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Yang Y, Yang ZY, Zou YM, Shi HS, Wang Y, Xie DJ, Zhang RT, Lui SSY, Cohen AC, Strauss GP, Cheung EFC, Chan RCK. Low-pleasure beliefs in patients with schizophrenia and individuals with social anhedonia. Schizophr Res 2018; 201:137-144. [PMID: 29804927 DOI: 10.1016/j.schres.2018.05.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/14/2018] [Accepted: 05/12/2018] [Indexed: 12/26/2022]
Abstract
Anhedonia in schizophrenia has been suggested to comprise a set of low-pleasure beliefs, defined as beliefs that certain things/activities were not pleasurable or that one does not feel pleasant generally. However, no instrument has been intentionally developed to specifically measure low-pleasure beliefs, and there is a paucity of empirical evidence for low-pleasure beliefs and their relationship with anhedonia in both patients with schizophrenia and individuals with high social anhedonia. We developed and validated the Beliefs About Pleasure Scale (BAPS) using non-clinical (Studies 1, 2 & 3), chronic schizophrenia (Study 2), and first episode schizophrenia (Study 3) samples. Across these studies, we examined psychometric properties of the BAPS, including temporal stability, internal consistency, factor structure, and convergent validity. The 22 BAPS items loaded onto 4 factors, namely the "Devaluation of Pleasure", the "Pleasurable Activity Expectancies", the "Negative Outcomes Expectancies", and the "Attention to Pleasure". The measure demonstrated good internal consistency and convergent validity in each sample. Moreover, both individual with schizophrenia and non-clinical participants with high social anhedonia scored higher on the BAPS than controls (Study 3), supporting construct validity. These findings provide preliminary evidence for the presence of low-pleasure beliefs in both clinical and subclinical groups and suggest that the BAPS has promising initial psychometric properties. The BAPS will be useful for exploring the cognitive component of anhedonia and provides a novel assessment for mechanism of change in psychosocial treatment studies.
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Affiliation(s)
- Yin Yang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Zhuo-Ya Yang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Ying-Min Zou
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Hai-Song Shi
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; North China Electric Power University, Beijing, China
| | - Yi Wang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Dong-Jie Xie
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Rui-Ting Zhang
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Simon S Y Lui
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Castle Peak Hospital, Hong Kong Special Administrative Region, China
| | - Alex C Cohen
- Department of Psychology, Louisiana State University, United States
| | | | - Eric F C Cheung
- Castle Peak Hospital, Hong Kong Special Administrative Region, China
| | - Raymond C K Chan
- Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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120
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Abstract
BACKGROUND Prior studies using self-report questionnaires and laboratory-based methods suggest that schizophrenia is characterized by abnormalities in emotion regulation (i.e. using strategies to increase or decrease the frequency, duration, or intensity of negative emotion). However, it is unclear whether these abnormalities reflect poor emotion regulation effort or adequate effort, but limited effectiveness. It is also unclear whether dysfunction results primarily from one of the three stages of the emotion regulation process: identification, selection, or implementation. METHOD The current study used ecological momentary assessment (EMA) to address these questions in the context of everyday activities. Participants included 28 outpatients diagnosed with schizophrenia (SZ) and 28 demographically matched healthy controls (CN) who completed 6 days of EMA reports of in-the-moment emotional experience, emotion regulation strategy use, and context. RESULTS Results indicated that SZ demonstrated adequate emotion regulation effort, but poor effectiveness. Abnormalities were observed at each of the three stages of the emotion regulation process. At the identification stage, SZ initiated emotion regulation efforts at a lower threshold of negative emotion intensity. At the selection stage, SZ selected more strategies than CN and strategies attempted were less contextually appropriate. At the implementation stage, moderate to high levels of effort were ineffective at decreasing negative emotion. CONCLUSIONS Findings suggest that although SZ attempt to control their emotions using various strategies, often applying more effort than CN, these efforts are unsuccessful; emotion regulation abnormalities may result from difficulties at the identification, selection, and implementation stages.
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Affiliation(s)
| | | | - Hiroki Sayama
- Department of Systems Science and Industrial Engineering,Binghamton University,NY,USA
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121
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Goldsmith DR, Haroon E, Miller AH, Strauss GP, Buckley PF, Miller BJ. TNF-α and IL-6 are associated with the deficit syndrome and negative symptoms in patients with chronic schizophrenia. Schizophr Res 2018; 199:281-284. [PMID: 29499967 PMCID: PMC6111000 DOI: 10.1016/j.schres.2018.02.048] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 01/06/2018] [Accepted: 02/25/2018] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Increased inflammatory markers have been found in patients with chronic schizophrenia, and have been associated with negative symptoms. The deficit syndrome is a distinct subtype of schizophrenia, characterized by primary and enduring negative symptoms. METHOD We measured inflammatory markers in patients with and without deficit schizophrenia and controls. RESULTS Using multivariate analyses, tumor necrosis factor (TNF)-α and interleukin-6 were associated with the deficit syndrome, and TNF-α predicted blunted affect, alogia, and total negative symptoms. CONCLUSIONS Findings suggest that deficit schizophrenia subtype is associated with increased inflammation and immunotherapies may be a novel target for negative symptoms.
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Affiliation(s)
- David R Goldsmith
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, United States.
| | - Ebrahim Haroon
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, United States
| | - Andrew H Miller
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, United States
| | - Gregory P Strauss
- University of Georgia, Department of Psychology, Athens, GA, United States
| | - Peter F Buckley
- Virginia Commonwealth University School of Medicine, Richmond, VA, United States
| | - Brian J Miller
- Augusta University, Department of Psychiatry and Health Behavior, Augusta, GA, United States
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122
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Kirkpatrick B, Saoud JB, Strauss GP, Ahmed AO, Tatsumi K, Opler M, Luthringer R, Davidson M. The brief negative symptom scale (BNSS): Sensitivity to treatment effects. Schizophr Res 2018; 197:269-273. [PMID: 29275856 DOI: 10.1016/j.schres.2017.11.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 10/25/2017] [Accepted: 11/24/2017] [Indexed: 02/07/2023]
Abstract
The Brief Negative Symptom Scale (BNSS) grew out of a recommendation by the NIMH-sponsored Consensus Development Conference on Negative Symptoms that a scale based on contemporary concepts be developed. We assessed sensitivity to change of the BNSS in a trial of MIN-101, which showed efficacy for negative symptoms (PANSS pentagonal model) at daily doses of 32 and 64mg/day. Using mixed-effects model for repeated measures, we examined change in BNSS total score and in the BNSS factors of anhedonia/avolition/asociality (AAA), and expressivity (EXP). Compared to placebo, the 64mg group (N=83) showed a significant decrease in BNSS total score (effect size d [ES] 0.56, p<0.01) and both factor scores (AAA ES=0.48, EXP ES=0.46, p<0.02 for both). Patients in the trial had minimal depression and positive symptom scores; covarying for disorganization, positive symptoms, or anxiety/depression did not cause a meaningful change in the significance of the BNSS total or factor scores in this group. The 32mg group (N=78) did not differ significantly from placebo (N=83) on BNSS total score (ES=0.33, p<0.09), AAA (ES=0.25, p<0.20) or EXP (ES=0.30, p<0.12) scores. These results demonstrate the BNSS is sensitive to change.
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Affiliation(s)
| | | | | | - Anthony O Ahmed
- Department of Psychiatry, Weill Cornell School of Medicine, USA
| | | | - Mark Opler
- ProPhase LLC, New York City, New York, USA
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123
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Affiliation(s)
| | - Alex S Cohen
- Department of Psychology, Louisiana State University, Baton Rouge, LA, USA
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124
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Strauss GP, Raugh IM, Mittal VA, Gibb BE, Coles ME. Bullying victimization and perpetration in a community sample of youth with psychotic like experiences. Schizophr Res 2018; 195:534-536. [PMID: 28888357 DOI: 10.1016/j.schres.2017.08.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 08/23/2017] [Accepted: 08/29/2017] [Indexed: 02/09/2023]
Abstract
Prior studies indicate an association between psychotic-like experiences (PLEs) and bullying victimization; however, the most frequent types of bullying victimization and the association with bullying perpetration are unclear. A community sample of 1563 adolescents completed questionnaires examining PLEs and frequency of bullying victimization and perpetration. Compared to adolescents scoring below the psychosis-risk cut-off (n=1294), those with PLEs (who are putatively at-risk) (n=269) were more likely to report being the victims of overt, relational, and reputational bullying and to have perpetrated bullying against others. Increased bullying perpetration among youth with PLEs may reflect reactive aggression in response to being bullied.
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Affiliation(s)
| | - Ian M Raugh
- Department of Psychology, University of Georgia, Athens, GA, USA
| | - Vijay A Mittal
- Department of Psychology, Northwestern University, Evanston, IL, USA
| | - Brandon E Gibb
- Department of Psychology, Binghamton University, Binghamton, NY, USA
| | - Meredith E Coles
- Department of Psychology, Binghamton University, Binghamton, NY, USA
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125
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Galderisi S, Rucci P, Kirkpatrick B, Mucci A, Gibertoni D, Rocca P, Rossi A, Bertolino A, Strauss GP, Aguglia E, Bellomo A, Murri MB, Bucci P, Carpiniello B, Comparelli A, Cuomo A, De Berardis D, Dell’Osso L, Di Fabio F, Gelao B, Marchesi C, Monteleone P, Montemagni C, Orsenigo G, Pacitti F, Roncone R, Santonastaso P, Siracusano A, Vignapiano A, Vita A, Zeppegno P, Maj M. Interplay Among Psychopathologic Variables, Personal Resources, Context-Related Factors, and Real-life Functioning in Individuals With Schizophrenia: A Network Analysis. JAMA Psychiatry 2018; 75:396-404. [PMID: 29450447 PMCID: PMC5875306 DOI: 10.1001/jamapsychiatry.2017.4607] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 12/17/2017] [Indexed: 12/20/2022]
Abstract
Importance Enhanced understanding of factors associated with symptomatic and functional recovery is instrumental to designing personalized treatment plans for people with schizophrenia. To date, this is the first study using network analysis to investigate the associations among cognitive, psychopathologic, and psychosocial variables in a large sample of community-dwelling individuals with schizophrenia. Objective To assess the interplay among psychopathologic variables, cognitive dysfunctions, functional capacity, personal resources, perceived stigma, and real-life functioning in individuals with schizophrenia, using a data-driven approach. Design, Setting, and Participants This multicenter, cross-sectional study involved 26 university psychiatric clinics and/or mental health departments. A total of 921 community-dwelling individuals with a DSM-IV diagnosis of schizophrenia who were stabilized on antipsychotic treatment were recruited from those consecutively presenting to the outpatient units of the sites between March 1, 2012, and September 30, 2013. Statistical analysis was conducted between July 1 and September 30, 2017. Main Outcomes and Measures Measures covered psychopathologic variables, neurocognition, social cognition, functional capacity, real-life functioning, resilience, perceived stigma, incentives, and service engagement. Results Of 740 patients (221 women and 519 men; mean [SD] age, 40.0 [10.9] years) with complete data on the 27 study measures, 163 (22.0%) were remitted (with a score of mild or better on 8 core symptoms). The network analysis showed that functional capacity and everyday life skills were the most central and highly interconnected nodes in the network. Psychopathologic variables split in 2 domains, with positive symptoms being one of the most peripheral and least connected nodes. Functional capacity bridged cognition with everyday life skills; the everyday life skills node was connected to disorganization and expressive deficits. Interpersonal relationships and work skills were connected to avolition; the interpersonal relationships node was also linked to social competence, and the work skills node was linked to social incentives and engagement with mental health services. A case-dropping bootstrap procedure showed centrality indices correlations of 0.75 or greater between the original and randomly defined samples up to 481 of 740 case-dropping (65.0%). No difference in the network structure was found between men and women. Conclusions and Relevance The high centrality of functional capacity and everyday life skills in the network suggests that improving the ability to perform tasks relevant to everyday life is critical for any therapeutic intervention in schizophrenia. The pattern of network node connections supports the implementation of personalized interventions.
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Affiliation(s)
- Silvana Galderisi
- Department of Psychiatry, Campania University “Luigi Vanvitelli,” Naples, Italy
| | - Paola Rucci
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Brian Kirkpatrick
- Department of Psychiatry and Behavioral Sciences, University of Nevada, Reno School of Medicine, Reno
| | - Armida Mucci
- Department of Psychiatry, Campania University “Luigi Vanvitelli,” Naples, Italy
| | - Dino Gibertoni
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Paola Rocca
- Department of Neuroscience, Section of Psychiatry, University of Turin, Turin, Italy
| | - Alessandro Rossi
- Section of Psychiatry, Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | - Alessandro Bertolino
- Department of Neurological and Psychiatric Sciences, University of Bari, Bari, Italy
| | | | - Eugenio Aguglia
- Department of Clinical and Molecular Biomedicine, Psychiatry Unit, University of Catania, Catania, Italy
| | - Antonello Bellomo
- Psychiatry Unit, Department of Medical Sciences, University of Foggia, Foggia, Italy
| | - Martino Belvederi Murri
- Section of Psychiatry, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics and Maternal and Child Health, University of Genoa, Genoa, Italy
| | - Paola Bucci
- Department of Psychiatry, Campania University “Luigi Vanvitelli,” Naples, Italy
| | - Bernardo Carpiniello
- Section of Psychiatry, Department of Public Health, Clinical and Molecular Medicine, University of Cagliari, Cagliari, Italy
| | - Anna Comparelli
- Department of Neurosciences, Mental Health and Sensory Organs, S. Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Alessandro Cuomo
- Department of Molecular Medicine and Clinical Department of Mental Health, University of Siena, Siena, Italy
| | | | - Liliana Dell’Osso
- Section of Psychiatry, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Fabio Di Fabio
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - Barbara Gelao
- Department of Neurological and Psychiatric Sciences, University of Bari, Bari, Italy
| | - Carlo Marchesi
- Department of Neuroscience, Psychiatry Unit, University of Parma, Parma, Italy
| | - Palmiero Monteleone
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana,” Section of Neuroscience, University of Salerno, Salerno, Italy
| | - Cristiana Montemagni
- Department of Neuroscience, Section of Psychiatry, University of Turin, Turin, Italy
| | | | - Francesca Pacitti
- Section of Psychiatry, Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy
| | - Rita Roncone
- Unit of Psychiatry, Department of Life, Health and Environmental Sciences, University of L’Aquila, L’Aquila, Italy
| | - Paolo Santonastaso
- Psychiatric Clinic, Department of Neurosciences, University of Padua, Padua, Italy
| | - Alberto Siracusano
- Department of Systems Medicine, Psychiatry and Clinical Psychology Unit, Tor Vergata University of Rome, Rome, Italy
| | - Annarita Vignapiano
- Department of Psychiatry, Campania University “Luigi Vanvitelli,” Naples, Italy
| | - Antonio Vita
- Psychiatric Unit, School of Medicine, University of Brescia, Brescia, Italy
- Department of Mental Health, Spedali Civili Hospital, Brescia, Italy
| | - Patrizia Zeppegno
- Department of Translational Medicine, Psychiatric Unit, University of Eastern Piedmont, Novara, Italy
| | - Mario Maj
- Department of Psychiatry, Campania University “Luigi Vanvitelli,” Naples, Italy
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126
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Gruber J, Strauss GP, Dombrecht L, Mittal VA. Neuroleptic-free youth at ultrahigh risk for psychosis evidence diminished emotion reactivity that is predicted by depression and anxiety. Schizophr Res 2018; 193:428-434. [PMID: 28811079 DOI: 10.1016/j.schres.2017.08.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 02/06/2023]
Abstract
Although abnormalities in emotional response have long been considered a core feature of the chronic phase of schizophrenia, few investigations have examined emotional response in individuals at ultrahigh-risk (UHR) for psychosis. We investigated whether neuroleptic-free UHR (n=29) and healthy control (n=32) participants differed in emotional reactivity and emotion regulation on a laboratory-based task that required reporting levels of positive and negative affect to pleasant, unpleasant, and neutral stimuli. Results indicated that the UHR group evidenced reduced emotional reactivity, including decreased positive emotion to pleasant stimuli and decreased negative emotion to unpleasant stimuli. Furthermore, within the UHR group, attenuated positive emotion to pleasant stimuli was associated with greater severity of depression and anxiety. There were no group differences in self-reported emotion regulation effectiveness to unpleasant or pleasant stimuli. Findings suggest that UHR youth display a profile of emotional experience abnormalities that differs from the chronic phase of illness, which can be characterized as reduced positive emotion reactivity to pleasant stimuli (i.e., anhedonia) that may be driven by mood and anxiety symptoms.
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Affiliation(s)
- June Gruber
- Department of Psychology and Neuroscience, University of Colorado Boulder, United States.
| | | | - Laure Dombrecht
- Department of Experimental Psychology, Ghent University, Belgium
| | - Vijay A Mittal
- Department of Psychology, Department of Psychiatry, Institute for Policy Research, Department of Medical Social Sciences, Northwestern University, United States
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127
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Ahmed AO, Strauss GP, Buchanan RW, Kirkpatrick B, Carpenter WT. Schizophrenia heterogeneity revisited: Clinical, cognitive, and psychosocial correlates of statistically-derived negative symptoms subgroups. J Psychiatr Res 2018; 97:8-15. [PMID: 29156414 DOI: 10.1016/j.jpsychires.2017.11.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 11/07/2017] [Accepted: 11/10/2017] [Indexed: 10/18/2022]
Abstract
Traditional efforts to delineate the clinical heterogeneity of schizophrenia have been unsuccessful because of the absence of a valid, stable, and meaningful subtyping scheme. A clinically-informed nosology supported by multivariate statistical classification methods may provide a better approach for classifying schizophrenia. The goals of the current study were to 1) use multivariate classification methods to validate a clinical subtyping scheme based on the profile of negative symptoms; and 2) following validation to contrast the statistically-derived subgroups to ascertain distinguishing demographic, clinical, cognitive, and functional characteristics. In the current study, 706 people with schizophrenia completed measures of positive and negative symptoms, premorbid adjustment, cognition, and psychosocial functioning. Latent class analysis served to identify the number of negative symptom subgroups in schizophrenia. Next, statistical classification methods-Bayes Theorem and the Base Rate Classification Technique-were used to assign participants into the identified subgroups. Subgroups were compared on external validation variables not used in the classification process via logistic regression and discriminant function analysis. Latent class analysis supported a three-class model of schizophrenia that included deficit, persistent, and transient negative symptom subgroups. Posthoc comparisons showed that demographic characteristics, positive symptoms, premorbid adjustment, and cognitive profiles can distinguish the schizophrenia subgroups with moderate accuracy. The deficit subgroup had the greatest impairments in psychosocial functioning and quality of life variables. Findings suggest that schizophrenia encapsulates qualitatively distinct negative symptom subgroups that differ in their demographic, symptomatic, neuropsychological, and functional profiles. Schizophrenia heterogeneity reflects a combination of non-arbitrary subgroups and severity-based differences in negative symptoms.
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Affiliation(s)
| | | | - Robert W Buchanan
- Department of Psychiatry, University of Maryland School of Medicine, Maryland Psychiatric Research Center, USA
| | - Brian Kirkpatrick
- Department of Psychiatry, University of Nevada School of Medicine, USA
| | - William T Carpenter
- Department of Psychiatry, University of Maryland School of Medicine, Maryland Psychiatric Research Center, USA
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128
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Sullivan SK, Strauss GP. Electrophysiological evidence for detrimental impact of a reappraisal emotion regulation strategy on subsequent cognitive control in schizophrenia. J Abnorm Psychol 2018; 126:679-693. [PMID: 28691849 DOI: 10.1037/abn0000285] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In healthy individuals, there is evidence that effective implementation of an emotion regulation strategy has beneficial effects on temporally proximal cognitive control task performance. This effect occurs because both of these processes rely heavily on the prefrontal cortex. Individuals with schizophrenia (SZ) have impairments in both emotion regulation and cognitive control that are driven by structural and functional abnormalities of the prefrontal cortex; however, it is unknown whether emotion regulation attempts fail to benefit subsequently performed cognitive control tasks in people with SZ. The present study examined whether attempts to increase or decrease negative emotion via reappraisal have differential effects on subsequent cognitive control in a sample of outpatients diagnosed with SZ (n = 30) and demographically matched healthy controls (CN; n = 29). Participants completed a combined emotion regulation and cognitive control task in which numerical Stroop trials were presented immediately after unpleasant or neutral images that were either increased via reappraisal, decreased via reappraisal, or passively viewed. The electroencephalogram was recorded while participants performed the reappraisal-Stroop task and event related potentials (ERPs) were used to index emotion regulation effectiveness (late positive potential: LPP) and cognitive control (sustained potential: SP). Both CN and SZ evidenced higher LPP amplitude for unpleasant than neutral stimuli consistent with robust neural response to unpleasant stimuli. Although CN demonstrated neurophysiological evidence of effective use of reappraisal to increase and decrease negative emotion, SZ only showed an effective ability to increase negative emotion via reappraisal. CN displayed enhanced cognitive control following increase trials and impaired cognitive control following decrease trials, as indicated by modulation of SP amplitude. In SZ, increase instructions impaired cognitive control and decrease instructions had no effect on cognitive control. Findings suggest that emotion regulation abnormalities may play an underrecognized role in general cognitive control deficits that occur in SZ. (PsycINFO Database Record
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129
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Strauss GP, Ruiz I, Visser KH, Crespo LP, Dickinson EK. Diminished Hedonic response in neuroleptic-free youth at ultra high-risk for psychosis. Schizophr Res Cogn 2017; 12:1-7. [PMID: 29928593 PMCID: PMC6006907 DOI: 10.1016/j.scog.2017.12.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 12/14/2017] [Accepted: 12/15/2017] [Indexed: 11/16/2022]
Abstract
Hedonic response is preserved in schizophrenia. However, it is unclear whether this is also true in individuals meeting criteria for “prodromal” psychosis, who are considered to be at symptomatic high risk for developing the disorder. In this study, we examined neurophysiological and self-reported response to emotional stimuli in UHR (n = 23) and healthy control (CN: n = 30) participants who passively viewed pleasant, unpleasant, and neutral images for 500 ms while the electroencephalogram was recorded and then provided self-reports of valence and arousal to the stimuli. The Late Positive Potential (LPP) event related potential (ERP) component was used as a neurophysiological marker of emotional reactivity. Results indicated that CN participants had higher LPP amplitude for pleasant and unpleasant compared to neutral stimuli; however, UHR youth displayed no differences in LPP amplitude among pleasant, unpleasant, and neutral stimuli. Self-report data mirrored neurophysiological data, as UHR youth had lower reports of positive emotion to pleasant stimuli and negative emotion to unpleasant stimuli compared to CN participants. Furthermore, the presence of a mood disorder diagnosis predicted reduced neurophysiological emotional reactivity in UHR youth. Findings suggest that youth at UHR for psychosis display diminished subjective and neurophysiological reactivity to emotional stimuli, and that symptoms of depression may result in diminished emotional reactivity.
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Affiliation(s)
- Gregory P Strauss
- Department of Psychology, University of Georgia, Athens, GA 30602, USA
| | - Ivan Ruiz
- Department of Psychology, University of Georgia, Athens, GA 30602, USA
| | | | - Laura P Crespo
- Department of Psychology, University of Georgia, Athens, GA 30602, USA
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130
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Esfahlani FZ, Sayama H, Visser KF, Strauss GP. Sensitivity of the Positive and Negative Syndrome Scale (PANSS) in Detecting Treatment Effects via Network Analysis. Innov Clin Neurosci 2017; 14:59-67. [PMID: 29410938 PMCID: PMC5788252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: The Positive and Negative Syndrome Scale is a primary outcome measure in clinical trials examining the efficacy of antipsychotic medications. Although the Positive and Negative Syndrome Scale has demonstrated sensitivity as a measure of treatment change in studies using traditional univariate statistical approaches, its sensitivity to detecting network-level changes in dynamic relationships among symptoms has yet to be demonstrated using more sophisticated multivariate analyses. In the current study, we examined the sensitivity of the Positive and Negative Syndrome Scale to detecting antipsychotic treatment effects as revealed through network analysis. Design: Participants included 1,049 individuals diagnosed with psychotic disorders from the Phase I portion of the Clinical Antipsychotic Trials of Intervention Effectiveness (CATIE) study. Of these participants, 733 were clinically determined to be treatment-responsive and 316 were found to be treatment-resistant. Item level data from the Positive and Negative Syndrome Scale were submitted to network analysis, and macroscopic, mesoscopic, and microscopic network properties were evaluated for the treatment-responsive and treatment-resistant groups at baseline and post-phase I antipsychotic treatment. Results: Network analysis indicated that treatment-responsive patients had more densely connected symptom networks after antipsychotic treatment than did treatment-responsive patients at baseline, and that symptom centralities increased following treatment. In contrast, symptom networks of treatment-resistant patients behaved more randomly before and after treatment. Conclusions: These results suggest that the Positive and Negative Syndrome Scale is sensitive to detecting treatment effects as revealed through network analysis. Its findings also provide compelling new evidence that strongly interconnected symptom networks confer an overall greater probability of treatment responsiveness in patients with psychosis, suggesting that antipsychotics achieve their effect by enhancing a number of central symptoms, which then facilitate reduction of other highly coupled symptoms in a network-like fashion.
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Affiliation(s)
- Farnaz Zamani Esfahlani
- Ms. Zamani Esfahlani is a PhD candidate in the Systems Science program at the State University of New York at Binghamton
- Dr. Sayama is the director of the Center for Collective Dynamics of Complex Systems (CoCo), professor in the Department of Systems Science and Industrial Engineering, and director of Graduate Programs in Systems Science at the State University of New York at Binghamton
- Ms. Visser is a graduate student at the State University of New York at Binghamton
- Dr. Strauss is an assistant professor at the State University of New York at Binghamton
| | - Hiroki Sayama
- Ms. Zamani Esfahlani is a PhD candidate in the Systems Science program at the State University of New York at Binghamton
- Dr. Sayama is the director of the Center for Collective Dynamics of Complex Systems (CoCo), professor in the Department of Systems Science and Industrial Engineering, and director of Graduate Programs in Systems Science at the State University of New York at Binghamton
- Ms. Visser is a graduate student at the State University of New York at Binghamton
- Dr. Strauss is an assistant professor at the State University of New York at Binghamton
| | - Katherine Frost Visser
- Ms. Zamani Esfahlani is a PhD candidate in the Systems Science program at the State University of New York at Binghamton
- Dr. Sayama is the director of the Center for Collective Dynamics of Complex Systems (CoCo), professor in the Department of Systems Science and Industrial Engineering, and director of Graduate Programs in Systems Science at the State University of New York at Binghamton
- Ms. Visser is a graduate student at the State University of New York at Binghamton
- Dr. Strauss is an assistant professor at the State University of New York at Binghamton
| | - Gregory P Strauss
- Ms. Zamani Esfahlani is a PhD candidate in the Systems Science program at the State University of New York at Binghamton
- Dr. Sayama is the director of the Center for Collective Dynamics of Complex Systems (CoCo), professor in the Department of Systems Science and Industrial Engineering, and director of Graduate Programs in Systems Science at the State University of New York at Binghamton
- Ms. Visser is a graduate student at the State University of New York at Binghamton
- Dr. Strauss is an assistant professor at the State University of New York at Binghamton
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131
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Pelletier-Baldelli A, Strauss GP, Visser KH, Mittal VA. Initial development and preliminary psychometric properties of the Prodromal Inventory of Negative Symptoms (PINS). Schizophr Res 2017; 189:43-49. [PMID: 28189529 PMCID: PMC5548645 DOI: 10.1016/j.schres.2017.01.055] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 01/24/2017] [Accepted: 01/27/2017] [Indexed: 10/20/2022]
Abstract
In the psychosis prodrome, sub-threshold positive symptoms are often preceded by negative symptoms. Individuals exhibiting these attenuated symptoms are primarily adolescents and young adults at clinical high-risk (CHR) for developing a psychotic disorder. In the CHR state, negative symptoms are highly predictive of the transition to diagnosable illness, making the assessment of these symptoms very important. Existing scales used to evaluate negative symptoms in this critical population are informative but have conceptual and psychometric limitations and/or were not designed according to modern conceptions delineated in the 2005 NIMH Negative Symptom Consensus Conference. The current study reports the development of the Prodromal Interview of Negative Symptoms (PINS) - a next-generation scale designed in accordance with the consensus conference recommendations. Preliminary data on the psychometric properties of the PINS is reported as part of ongoing scale development that will use a data-driven, iterative process to generate a final scale. Analysis of data from 53 CHR cases, 30 of whom were re-evaluated at 12months, indicated that the beta version of the PINS demonstrated good internal consistency, inter-rater reliability, convergent validity, and discriminant validity. These preliminary findings provide direction for a revision of this measure, which resulted in the PINS-2, a promising new measure for the assessment of negative symptoms in CHR populations. This manuscript presents both the initial scale and resulting untested instrument, as well as a series of plans and recommendations for future development.
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Affiliation(s)
- Andrea Pelletier-Baldelli
- Department of Psychology and Neuroscience, University of Colorado Boulder, 1905 Colorado Ave., Boulder, CO 80309, United States; Center for Neuroscience, University of Colorado Boulder, 1905 Colorado Ave., Boulder, CO 80309, United States.
| | - Gregory P. Strauss
- Department of Psychology, University of Georgia, 125 Baldwin Street, Athens, Georgia, United States of America, 30602
| | - Katherine H. Visser
- Department of Psychology, University of Georgia, 125 Baldwin Street, Athens, Georgia, United States of America, 30602
| | - Vijay A. Mittal
- Department of Psychology, Northwestern University, 2029 Sheridan Rd., Evanston, Illinois, United States of America, 60208,Department of Psychiatry, Northwestern University, 446 E Ontario St., Chicago, Illinois, United States of America, 60611,Institute for Policy Research, Northwestern University, 2029 Sheridan Rd., Evanston, Illinois, United States of America, 60208,Department of Medical Social Sciences, Northwestern University, 446 E Ontario St., Chicago, Illinois, United States of America, 60611
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132
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Cohen AS, Mitchell KR, Strauss GP, Blanchard JJ, Buchanan RW, Kelly DL, Gold J, McMahon RP, Adams HA, Carpenter WT. The effects of oxytocin and galantamine on objectively-defined vocal and facial expression: Data from the CIDAR study. Schizophr Res 2017; 188:141-143. [PMID: 28130004 PMCID: PMC5524598 DOI: 10.1016/j.schres.2017.01.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Alex S. Cohen
- Louisiana State University, Department of Psychology
| | | | | | | | - Robert W. Buchanan
- University of Maryland School of Medicine, Maryland Psychiatric Research Center
| | - Deanna L. Kelly
- University of Maryland School of Medicine, Maryland Psychiatric Research Center
| | - James Gold
- University of Maryland School of Medicine, Maryland Psychiatric Research Center
| | - Robert P. McMahon
- University of Maryland School of Medicine, Maryland Psychiatric Research Center
| | - Heather A. Adams
- University of Maryland School of Medicine, Maryland Psychiatric Research Center
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Abstract
In the DSM5, negative symptoms are 1 of the 5 core dimensions of psychopathology evaluated for schizophrenia. However, negative symptoms are not pathognomonic-they are also part of the diagnostic criteria for other schizophrenia-spectrum disorders, disorders that sometimes have comorbid psychosis, diagnoses not in the schizophrenia-spectrum, and the general "nonclinical" population. Although etiological models of negative symptoms have been developed for chronic schizophrenia, there has been little attention given to whether these models have transdiagnostic applicability. In the current review, we examine areas of commonality and divergence in the clinical presentation and etiology of negative symptoms across diagnostic categories. It was concluded that negative symptoms are relatively frequent across diagnostic categories, but individual disorders may differ in whether their negative symptoms are persistent/transient or primary/secondary. Evidence for separate dimensions of volitional and expressive symptoms exists, and there may be multiple mechanistic pathways to the same symptom phenomenon among DSM-5 disorders within and outside the schizophrenia-spectrum (ie, equifinality). Evidence for a novel transdiagnostic etiological model is presented based on the Research Domain Criteria (RDoC) constructs, which proposes the existence of 2 such pathways-a hedonic pathway and a cognitive pathway-that can both lead to expressive or volitional symptoms. To facilitate treatment breakthroughs, future transdiagnostic studies on negative symptoms are warranted that explore mechanisms underlying volitional and expressive pathology.
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Affiliation(s)
- Gregory P. Strauss
- Department of Psychology, University of Georgia, 125 Baldwin Street, Athens, GA 30602
| | - Alex S. Cohen
- Department of Psychology, Louisiana State University, Baton Rouge, LA
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134
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Abstract
Prior studies have concluded that schizophrenia patients are not anhedonic because they do not report reduced experience of positive emotion to pleasant stimuli. The current study challenged this view by applying quantitative methods validated in the Evaluative Space Model of emotional experience to test the hypothesis that schizophrenia patients evidence a reduction in the normative "positivity offset" (i.e., the tendency to experience higher levels of positive than negative emotional output when stimulus input is absent or weak). Participants included 76 schizophrenia patients and 60 healthy controls who completed an emotional experience task that required reporting the level of positive emotion, negative emotion, and arousal to photographs. Results indicated that although schizophrenia patients evidenced intact capacity to experience positive emotion at high levels of stimulus input, they displayed a diminished positivity offset. Reductions in the positivity offset may underlie volitional disturbance, limiting approach behaviors toward novel stimuli in neutral environments.
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Affiliation(s)
| | | | - Bern G Lee
- Department of Psychiatry and Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - James M Gold
- Department of Psychiatry and Maryland Psychiatric Research Center, University of Maryland School of Medicine
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135
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Strauss GP, Thaler NS, Matveeva TM, Vogel SJ, Sutton GP, Lee BG, Allen DN. Predicting psychosis across diagnostic boundaries: Behavioral and computational modeling evidence for impaired reinforcement learning in schizophrenia and bipolar disorder with a history of psychosis. J Abnorm Psychol 2016; 124:697-708. [PMID: 25894442 DOI: 10.1037/abn0000039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
There is increasing evidence that schizophrenia (SZ) and bipolar disorder (BD) share a number of cognitive, neurobiological, and genetic markers. Shared features may be most prevalent among SZ and BD with a history of psychosis. This study extended this literature by examining reinforcement learning (RL) performance in individuals with SZ (n = 29), BD with a history of psychosis (BD+; n = 24), BD without a history of psychosis (BD-; n = 23), and healthy controls (HC; n = 24). RL was assessed through a probabilistic stimulus selection task with acquisition and test phases. Computational modeling evaluated competing accounts of the data. Each participant's trial-by-trial decision-making behavior was fit to 3 computational models of RL: (a) a standard actor-critic model simulating pure basal ganglia-dependent learning, (b) a pure Q-learning model simulating action selection as a function of learned expected reward value, and (c) a hybrid model where an actor-critic is "augmented" by a Q-learning component, meant to capture the top-down influence of orbitofrontal cortex value representations on the striatum. The SZ group demonstrated greater reinforcement learning impairments at acquisition and test phases than the BD+, BD-, and HC groups. The BD+ and BD- groups displayed comparable performance at acquisition and test phases. Collapsing across diagnostic categories, greater severity of current psychosis was associated with poorer acquisition of the most rewarding stimuli as well as poor go/no-go learning at test. Model fits revealed that reinforcement learning in SZ was best characterized by a pure actor-critic model where learning is driven by prediction error signaling alone. In contrast, BD-, BD+, and HC were best fit by a hybrid model where prediction errors are influenced by top-down expected value representations that guide decision making. These findings suggest that abnormalities in the reward system are more prominent in SZ than BD; however, current psychotic symptoms may be associated with reinforcement learning deficits regardless of a Diagnostic and Statistical Manual of Mental Disorders (5th Edition; American Psychiatric Association, 2013) diagnosis.
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Affiliation(s)
- Gregory P Strauss
- Department of Psychology, State University of New York at Binghamton
| | | | | | - Sally J Vogel
- Department of Psychology, University of Nevada, Las Vegas
| | | | - Bern G Lee
- Department of Psychology, University of Nevada, Las Vegas
| | - Daniel N Allen
- Department of Psychology, University of Nevada, Las Vegas
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136
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Bischof M, Obermann C, Hartmann MN, Hager OM, Kirschner M, Kluge A, Strauss GP, Kaiser S. The brief negative symptom scale: validation of the German translation and convergent validity with self-rated anhedonia and observer-rated apathy. BMC Psychiatry 2016; 16:415. [PMID: 27876020 PMCID: PMC5118879 DOI: 10.1186/s12888-016-1118-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 11/07/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Negative symptoms are considered core symptoms of schizophrenia. The Brief Negative Symptom Scale (BNSS) was developed to measure this symptomatic dimension according to a current consensus definition. The present study examined the psychometric properties of the German version of the BNSS. To expand former findings on convergent validity, we employed the Temporal Experience Pleasure Scale (TEPS), a hedonic self-report that distinguishes between consummatory and anticipatory pleasure. Additionally, we addressed convergent validity with observer-rated assessment of apathy with the Apathy Evaluation Scale (AES), which was completed by the patient's primary nurse. METHODS Data were collected from 75 in- and outpatients from the Psychiatric Hospital, University Zurich diagnosed with either schizophrenia or schizoaffective disorder. We assessed convergent and discriminant validity, internal consistency and inter-rater reliability. RESULTS We largely replicated the findings of the original version showing good psychometric properties of the BNSS. In addition, the primary nurses evaluation correlated moderately with interview-based clinician rating. BNSS anhedonia items showed good convergent validity with the TEPS. CONCLUSIONS Overall, the German BNSS shows good psychometric properties comparable to the original English version. Convergent validity extends beyond interview-based assessments of negative symptoms to self-rated anhedonia and observer-rated apathy.
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Affiliation(s)
- Martin Bischof
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032, Zurich, Switzerland.
| | - Caitriona Obermann
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Matthias N. Hartmann
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland ,Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich, Bluemlisalpstrasse 10, 8006 Zurich, Switzerland
| | - Oliver M. Hager
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland ,Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich, Bluemlisalpstrasse 10, 8006 Zurich, Switzerland
| | - Matthias Kirschner
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Agne Kluge
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, Lenggstrasse 31, 8032 Zurich, Switzerland
| | - Gregory P. Strauss
- Department of Psychology, State University of New York at Binghamton, Binghamton, NY 13902-6000 USA
| | - Stefan Kaiser
- Laboratory for Social and Neural Systems Research, Department of Economics, University of Zurich, Bluemlisalpstrasse 10, 8006 Zurich, Switzerland
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137
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Abstract
In 2005, the National Institute of Mental Health held a consensus development conference on negative symptoms of schizophrenia. Among the important conclusions of this meeting were that there are at least 5 commonly accepted domains of negative symptoms (blunted affect, alogia, avolition, anhedonia, asociality) and that new rating scales were needed to adequately assess these constructs. Two next-generation negative symptom scales resulted from this meeting: the Brief Negative Symptom Scale (BNSS) and Clinical Assessment Interview for Negative Symptoms (CAINS). Both measures are becoming widely used and studies have demonstrated good psychometric properties for each scale. The current study provides the first direct psychometric comparison of these scales. Participants included 65 outpatients diagnosed with schizophrenia or schizoaffective disorder who completed clinical interviews, questionnaires, and neuropsychological testing. Separate raters completed the BNSS and CAINS within the same week. Results indicated that both measures had good internal consistency, convergent validity, and discriminant validity. High correspondence was observed between CAINS and BNSS blunted affect and alogia items. Moderate convergence occurred for avolition and asociality items, and low convergence was seen among anhedonia items. Findings suggest that both scales have good psychometric properties, but that there are important distinctions among the items related to motivation and pleasure.
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Affiliation(s)
- Gregory P Strauss
- Department of Psychology, State University of New York at Binghamton, Binghamton, NY;
| | - James M Gold
- Department of Psychiatry and Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, MD
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138
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Morra LF, Strauss GP. Severity of hypertension predicts the generalized neurocognitive deficit in schizophrenia. Schizophr Res 2016; 176:527-528. [PMID: 27397721 PMCID: PMC5026911 DOI: 10.1016/j.schres.2016.07.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 06/28/2016] [Accepted: 07/01/2016] [Indexed: 10/21/2022]
Abstract
Individuals with schizophrenia have been found to display neurocognitive deficits on the order of 1 standard deviation below the mean of healthy controls on a range of cognitive domains, with no clear pattern of deficits that characterizes the majority of individuals with schizophrenia. Such findings have led some to suggest that schizophrenia is characterized by a "generalized" neurocognitive deficit, implying that a common underlying etiology impacts all cognitive domains. Central nervous system accounts of the generalized deficit have been proposed (e.g., NMDA and GABA interneuron receptor dysfunction); however, there may also be more diffuse "general systems" abnormalities that affect brain function. The current study evaluated the role of one type of general systems abnormality, metabolic dysfunction, on global cognitive functioning in a sample of outpatients with schizophrenia (n=27) and demographically matched healthy controls (n=33). Participants completed a battery of neuropsychological tests, as well as metabolic measurements to assess blood glucose, blood pressure, and abdominal obesity. Results indicated that higher pulse pressure predicted the generalized neurocognitive deficit in schizophrenia, but not healthy controls; however, blood glucose and abdominal obesity did not predict cognitive performance in either group. These findings provide support for the role of metabolic abnormalities in the generalized neurocognitive deficit in schizophrenia, and suggest that treatment of hypertension may be a novel adjunctive treatment target for remediating cognitive deficits in schizophrenia.
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Affiliation(s)
- Lindsay F. Morra
- State University of New York at Binghamton, Department of Psychology
| | - Gregory P. Strauss
- State University of New York at Binghamton, Department of Psychology,Correspondence concerning this article should be addressed to Gregory P. Strauss, Ph.D., . Phone: +1-607-777-5408. Fax: +1-607-777-4890. State University of New York at Binghamton, Department of Psychology, PO Box 6000, Binghamton, New York, USA, 13902-6000
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139
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Abstract
Previous studies have examined the reliability of scores derived from various Stroop tasks. However, few studies have compared reliability of more recently developed Stroop variants such as emotional Stroop tasks to standard versions of the Stroop. The current study developed four different single-stimulus Stroop tasks and compared test-retest reliabilities. The four Stroop tasks included two standard Stroop tasks (color-word and picture-word) as well as two emotional Stroop tasks (color-word and picture-word). The four Stroop tasks were administered on two occasions, separated by 1 week, to 28 undergraduate students. Test-retest reliability coefficients were high for standard and emotional Stroop tasks when reliability was measured using response latencies alone. However, test-retest coefficients were unacceptably low when reliability estimates were calculated using difference scores. The findings have important implications for clinical and experimental use of standard and emotional Stroop tasks.
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140
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Abstract
PURPOSE OF REVIEW Anhedonia, traditionally defined as a diminished capacity to experience pleasure, has long been considered a core symptom of schizophrenia. However, recent research calls into question whether individuals with schizophrenia are truly anhedonic, suggesting intact subjective and neurophysiological response to rewarding stimuli in-the-moment. Despite a presumably intact capacity to experience pleasure, people with schizophrenia still engage in fewer reward-seeking behaviors. This discrepancy has been explained as a dissociation between "liking" and "wanting", with dopaminergic and prefrontal influences on incentive salience leading hedonic responses to not effectively translate into motivated behavior. In the current review, the literature on a key aspect of the wanting deficit is reviewed, anticipatory pleasure. RECENT FINDINGS Results provide consistent evidence for impairment in some aspects of anticipatory pleasure (e.g., prospection, associative learning between reward predictive cues and outcomes), and inconsistent evidence for others (e.g., anticipatory affect and affective forecasting). SUMMARY Mechanisms underlying anticipatory pleasure abnormalities in schizophrenia are discussed and a new model of anticipatory pleasure deficits is proposed. Findings suggest that anticipatory pleasure may be a critical component of impairments in wanting that impact motivated behavior in schizophrenia.
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Affiliation(s)
- Katherine H Frost
- Department of Psychology, State University of New York at Binghamton
| | - Gregory P Strauss
- Department of Psychology, State University of New York at Binghamton
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141
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Lee MR, Wehring HJ, McMahon RP, Liu F, Linthicum J, Verbalis JG, Buchanan RW, Strauss GP, Rubin LH, Kelly DL. Relationship of plasma oxytocin levels to baseline symptoms and symptom changes during three weeks of daily oxytocin administration in people with schizophrenia. Schizophr Res 2016; 172:165-8. [PMID: 26879587 PMCID: PMC4821731 DOI: 10.1016/j.schres.2016.02.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/03/2016] [Accepted: 02/07/2016] [Indexed: 10/22/2022]
Abstract
Several clinical studies have found an inverse relationship between clinical symptoms and peripheral oxytocin (OT) levels in people with schizophrenia. As oxytocin is a putative treatment for schizophrenia, the effect of repeated dosing of OT on OT levels, clinical symptoms and the relationship between the two is of interest. In a, randomized, double blind, parallel group 3 week study (N=28) with daily administration of intranasal OT (20 IU twice daily) or placebo (PBO), we examined the effect of OT administration on the correlation between the change in peripheral OT levels and change in clinical symptoms in patients with schizophrenia. At baseline, there were no significant treatment group differences in OT levels. There were no significant associations between baseline OT levels and any symptom measures. After 3 weeks of OT/PBO dosing, there was no significant difference in the magnitude of change in OT levels between the two treatment groups. Correlations between changes in peripheral OT levels and changes in the BPRS total and negative symptom scores were not different between treatment groups. Larger studies are needed to examine the effect of exogenous OT on peripheral OT levels and the relationship between the latter and clinical symptoms. Clinical Trials.gov=NCT00884897.
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Affiliation(s)
- Mary R. Lee
- National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Section on Clinical Psychoneuroendocrinology and Neuropsychopharmacology, Bethesda, MD,Corresponding author: , National Institute on Alcohol Abuse and Alcoholism, 10 Center Drive, Bethesda, MD 20892-1108
| | - Heidi J. Wehring
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - Robert P. McMahon
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - Fang Liu
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - Jared Linthicum
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - Joseph G. Verbalis
- Georgetown-Howard Universities Center for Clinical and Translational Science, Georgetown University Medical Center
| | - Robert W. Buchanan
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
| | - Gregory P. Strauss
- Department of Psychology, State University of New York at Binghamton, Binghamton, NY
| | - Leah H. Rubin
- Women’s Mental Health Research Program, University of Illinois at Chicago
| | - Deanna L. Kelly
- Maryland Psychiatric Research Center, University of Maryland School of Medicine
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142
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Strauss GP, Vertinski M, Vogel SJ, Ringdahl EN, Allen DN. Negative symptoms in bipolar disorder and schizophrenia: A psychometric evaluation of the brief negative symptom scale across diagnostic categories. Schizophr Res 2016; 170:285-9. [PMID: 26742510 DOI: 10.1016/j.schres.2015.12.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 12/18/2015] [Accepted: 12/22/2015] [Indexed: 12/16/2022]
Abstract
Past studies have demonstrated that the Brief Negative Symptom Scale (BNSS) has excellent psychometric properties in patients with schizophrenia. In the current study, we extended this literature by examining psychometric properties of the BNSS in outpatients diagnosed with bipolar disorder (n=46), outpatients with schizophrenia (n=50), and healthy controls (n=27). Participants completed neuropsychological testing and a clinical interview designed to assess negative, positive, disorganized, mood, and general psychiatric symptoms. Results indicated differences among the 3 groups in the severity of all BNSS items, with SZ and BD scoring higher than CN; however, SZ and BD only differed on blunted affect and alogia items, not anhedonia, avolition, or asociality. BD patients with a history of psychosis did not differ from those without a history of psychosis on negative symptom severity. The BNSS had excellent internal consistency in SZ, BD, and CN groups. Good convergent and discriminant validity was apparent in SZ and BD groups, as indicated by relationships between the BNSS and other clinical rating scales. These findings support the validity of the BNSS in broadly defined serious mental illness populations.
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Affiliation(s)
- Gregory P Strauss
- Department of Psychology, State University of New York at Binghamton, United States
| | - Mary Vertinski
- Department of Psychology, University of Nevada, Las Vegas, United States
| | - Sally J Vogel
- Department of Psychology, University of Nevada, Las Vegas, United States
| | - Erik N Ringdahl
- Department of Psychology, University of Nevada, Las Vegas, United States
| | - Daniel N Allen
- Department of Psychology, University of Nevada, Las Vegas, United States.
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143
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Strauss GP, Whearty KM, Morra LF, Sullivan SK, Ossenfort KL, Frost KH. Avolition in schizophrenia is associated with reduced willingness to expend effort for reward on a Progressive Ratio task. Schizophr Res 2016; 170:198-204. [PMID: 26701649 PMCID: PMC4707087 DOI: 10.1016/j.schres.2015.12.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 12/06/2015] [Accepted: 12/09/2015] [Indexed: 11/30/2022]
Abstract
The current study examined whether effort-cost computation was associated with negative symptoms of schizophrenia (SZ). Participants included outpatients diagnosed with SZ (n=27) and demographically matched healthy controls (n=32) who completed a Progressive Ratio task that required incrementally greater amounts of physical effort to obtain monetary reward. Breakpoint, the point at which participants was no longer willing to exert effort for a certain reward value, was examined as an index of effort-cost computation. There were no group differences in breakpoint for low, medium, or high value rewards on the Progressive Ratio task. However, lower breakpoint scores were associated with greater severity of avolition and anhedonia symptoms in SZ patients. Findings provide further evidence that impaired effort-cost computation is linked to motivational abnormalities in SZ.
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Affiliation(s)
- Gregory P. Strauss
- Correspondence concerning this article should be addressed to Gregory P. Strauss, Ph.D., . Phone: +1-607-777-5408. Fax: +1-607-777-4890. State University of New York at Binghamton, Department of Psychology, PO Box 6000, Binghamton, New York, USA, 13902-6000
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144
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Strauss GP, Whearty KM, Frost KH, Carpenter WT. An Affective Neuroscience Model of Impaired Approach Motivation in Schizophrenia. Nebr Symp Motiv 2016; 63:159-203. [PMID: 27627827 DOI: 10.1007/978-3-319-30596-7_6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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145
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Whearty KM, Allen DN, Lee BG, Strauss GP. The evaluation of insufficient cognitive effort in schizophrenia in light of low IQ scores. J Psychiatr Res 2015; 68:397-404. [PMID: 26026486 DOI: 10.1016/j.jpsychires.2015.04.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 04/13/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022]
Abstract
Low IQ has recently been shown to predict neuropsychological effort test failure in healthy and neurological populations. Although low IQ is common in schizophrenia (SZ), its effect on effort test performance remains unclear in this population. The current study examined the role of IQ in effort test performance in a sample of 60 outpatients with SZ and 30 demographically matched healthy controls (CN). Participants were administered a battery of neuropsychological tests, and insufficient effort was calculated using two embedded effort indices: the Reliable Digit Span Effort Index and the Finger Tapping Effort Index. Results indicated that 16.1% of SZ patients and 0% CN failed both effort measures and that 32.1% of SZ and 3.3% of CN failed one measure. In SZ, IQ in the <70 or 70-79 range was associated with the highest rates of falling below the effort cut-off scores; however, patients with IQs in the low-average or higher range (>80) did not fall below effort cut-offs. Findings suggest that low IQ is a significant predictor of insufficient effort during neuropsychological test performance in schizophrenia, calling into question the validity of neuropsychological effort testing in SZ patients with low IQ.
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Affiliation(s)
- Kayla M Whearty
- State University of New York at Binghamton, Department of Psychology, USA
| | - Daniel N Allen
- University of Nevada Las Vegas, Department of Psychology, USA
| | - Bern G Lee
- University of Nevada Las Vegas, Department of Psychology, USA
| | - Gregory P Strauss
- State University of New York at Binghamton, Department of Psychology, USA.
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146
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Ahmed AO, Strauss GP, Buchanan RW, Kirkpatrick B, Carpenter WT. Are Negative Symptoms Dimensional or Categorical? Detection and Validation of Deficit Schizophrenia With Taxometric and Latent Variable Mixture Models. Schizophr Bull 2015; 41:879-91. [PMID: 25399026 PMCID: PMC4466177 DOI: 10.1093/schbul/sbu163] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Studies have supported the validity of the deficit form of schizophrenia (ie, people with primary and enduring negative symptoms). A test of whether that group is a true taxon-that is, a distinct, discontinuous group-has yet to be conducted and the underlying structure of negative symptoms as categorical or dimensional remains undetermined. The present study examined the latent structure of negative and deficit symptoms to determine if a nonarbitrary boundary distinguishes deficit from nondeficit forms of schizophrenia (ie, whether these symptoms reflect a continuous or categorical variable). Schedule for the Deficit Syndrome ratings of 789 individuals with a psychotic disorder were submitted to taxometric and latent variable mixture analyses to test categorical vs dimensional hypotheses of negative symptoms and deficit schizophrenia. Analytic models favored a taxonic structure of negative symptoms and the validity of the deficit/nondeficit classification scheme. Taxometric classification outperformed clinician-based deficit/nondeficit classification in its association with summer birth, male sex, premorbid adjustment, neurocognition, and psychosocial functioning. Within taxon and complement classes, severity scores remained significant predictors of premorbid adjustment, neurocognition, and psychosocial functioning. Thus, although a categorical approach is validated, a hybrid categorical-dimensional conceptualization of negative symptoms also has validity for the prediction of external variables.
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Affiliation(s)
- Anthony O. Ahmed
- Department of Psychiatry, Weill Cornell Medical College, White Plains, NY;,Department of Psychiatry and Health Behavior, Medical College of Georgia, Georgia Regents University, Augusta, GA;,*To whom correspondence should be addressed; Department of Psychiatry, Weill Cornell Medical College, 21 Bloomingdale Road, White Plains, NY 10605, US; tel: 914-997-5251, fax: 914-682-6906, e-mail:
| | | | - Robert W. Buchanan
- Department of Psychiatry;,Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, MD
| | - Brian Kirkpatrick
- Department of Psychiatry, University of Nevada School of Medicine, Reno, NV
| | - William T. Carpenter
- Department of Psychiatry;,Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, MD
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147
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Morra LF, Gold JM, Sullivan SK, Strauss GP. Predictors of neuropsychological effort test performance in schizophrenia. Schizophr Res 2015; 162:205-10. [PMID: 25583248 PMCID: PMC4339544 DOI: 10.1016/j.schres.2014.12.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 11/28/2022]
Abstract
There is some evidence that insufficient effort may be common in schizophrenia, posing significant threats to the validity of neuropsychological test results. Low effort may account for a significant proportion of variance in neuropsychological test scores and the generalized cognitive deficit that characterizes the disorder. The current study evaluated clinical predictors of insufficient effort in schizophrenia using an embedded effort measure, the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) Effort Index (EI). Participants were 330 patients meeting DSM-IV-TR criteria for schizophrenia, schizoaffective disorder, or another psychotic disorder who received a battery of neuropsychological tests, including: Wechsler Test of Adult Reading (WTAR), Wechsler Abbreviated Scale of Intelligence (WASI), and RBANS. Clinical assessments designed to measure functional outcome and symptoms were also obtained. Results indicated that 9.4% of patients failed the EI. Patients who failed had lower full-scale, verbal, and performance IQ, as well as poorer performance on RBANS domains not included in the EI (immediate memory, language, and visuospatial/construction). Patients who failed the EI also displayed poorer community-based vocational outcome, greater likelihood of having "deficit schizophrenia" (i.e., primary and enduring negative symptoms), and increased severity of positive symptoms. Regression analyses revealed that insufficient effort was most significantly predicted by a combination of low IQ, negative symptoms, and positive symptoms. Findings suggest that although insufficient effort may be relatively uncommon in schizophrenia, it is associated with important clinical outcomes. The RBANS EI may be a useful tool in evaluating insufficient effort in schizophrenia.
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Affiliation(s)
- Lindsay F. Morra
- State University of New York at Binghamton, Department of Psychology
| | - James M. Gold
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center
| | - Sara K. Sullivan
- State University of New York at Binghamton, Department of Psychology
| | - Gregory P. Strauss
- State University of New York at Binghamton, Department of Psychology,Correspondence concerning this article should be addressed to Gregory P. Strauss, Ph.D., . Phone: +1-607-777-5408. Fax: +1-607-777-4890. State University of New York at Binghamton, Department of Psychology, PO Box 6000, Binghamton, New York, USA, 13902-6000
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148
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Strauss GP, Keller WR, Koenig JI, Sullivan SK, Gold JM, Buchanan RW. Endogenous oxytocin levels are associated with the perception of emotion in dynamic body expressions in schizophrenia. Schizophr Res 2015; 162:52-6. [PMID: 25620121 PMCID: PMC4339450 DOI: 10.1016/j.schres.2015.01.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/07/2015] [Accepted: 01/11/2015] [Indexed: 10/24/2022]
Abstract
Lower endogenous oxytocin levels have been associated with impaired social cognition in schizophrenia, particularly facial affect identification. Little is known about the relationship between oxytocin and other forms of emotion perception. In the current study, 41 individuals with schizophrenia (SZ) and 22 demographically matched healthy controls (CN) completed a forced-choice affective body expression classification task. Stimuli included dynamic videos of male and female actors portraying 4 discrete emotions: happiness, sadness, anger, and neutral. Plasma oxytocin levels were determined via radioimmunoassay. Results indicated that SZ had significantly higher plasma oxytocin concentrations than CN. SZ were also less accurate at identifying expressions of happiness and sadness; however, there were no group differences for anger or neutral stimuli. A group×sex interaction was also present, such that female CN were more accurate than male CN, whereas male SZ were more accurate than female SZ. Higher endogenous oxytocin levels were associated with better total recognition in both SZ and CN; this association was specific to females in SZ. Findings indicate that sex plays an important role in identifying emotional expressions in body gestures in SZ, and that individual differences in endogenous oxytocin predict emotion perception accuracy.
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Affiliation(s)
- Gregory P. Strauss
- State University of New York at Binghamton, Department of Psychology,Correspondence concerning this article should be addressed to Gregory P. Strauss, Ph.D., . Phone: +1-607-777-5408. Fax: +1-607-777-4890. State University of New York at Binghamton, Department of Psychology, PO Box 6000, Binghamton, New York, USA, 13902-6000
| | - William R. Keller
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center
| | - James I. Koenig
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center
| | - Sara K. Sullivan
- State University of New York at Binghamton, Department of Psychology
| | - James M. Gold
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center
| | - Robert W. Buchanan
- University of Maryland School of Medicine, Department of Psychiatry and Maryland Psychiatric Research Center
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149
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Strauss GP, Keller WR, Koenig JI, Gold JM, Ossenfort KL, Buchanan RW. Plasma oxytocin levels predict olfactory identification and negative symptoms in individuals with schizophrenia. Schizophr Res 2015; 162:57-61. [PMID: 25583247 PMCID: PMC4339311 DOI: 10.1016/j.schres.2014.12.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 12/11/2014] [Accepted: 12/15/2014] [Indexed: 12/30/2022]
Abstract
Basic neuroscience research provides strong evidence for the role of oxytocin in olfactory processes and social affiliation in rodents. Given prior indication of olfactory impairments that are linked to greater severity of asociality in schizophrenia, we examined the association between plasma oxytocin levels and measures of olfaction and social outcome in a sample of outpatients with schizophrenia (n=39) and demographically matched healthy controls (n=21). Participants completed the 40-item University of Pennsylvania Smell Identification Test (UPSIT), and rated each odor for how positive and how negative it made them feel. Results indicated that individuals with schizophrenia had higher plasma oxytocin levels and lower overall accuracy for UPSIT items than controls. Individuals with schizophrenia also reported experiencing more negative emotionality than controls in response to the olfactory stimuli. Lower plasma oxytocin levels were associated with poorer accuracy for pleasant and unpleasant odors and greater severity of asociality in individuals with schizophrenia. These findings suggest that endogenous oxytocin levels may be an important predictor of olfactory identification deficits and negative symptoms in schizophrenia.
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Affiliation(s)
- Gregory P. Strauss
- Department of Psychology, State University of New York at Binghamton,Correspondence concerning this article should be addressed to Gregory P. Strauss, Ph.D., . Phone: +1-607-777-5408. Fax: +1-607-777-4890. State University of New York at Binghamton, Department of Psychology, PO Box 6000, Binghamton, New York, USA, 13902-6000
| | - William R. Keller
- Maryland Psychiatric Research center and Department of Psychiatry, University of Maryland School of Medicine
| | - James I. Koenig
- Maryland Psychiatric Research center and Department of Psychiatry, University of Maryland School of Medicine
| | - James M. Gold
- Maryland Psychiatric Research center and Department of Psychiatry, University of Maryland School of Medicine
| | | | - Robert W. Buchanan
- Maryland Psychiatric Research center and Department of Psychiatry, University of Maryland School of Medicine
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150
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Strauss GP, Kappenman ES, Culbreth AJ, Catalano LT, Ossenfort KL, Lee BG, Gold JM. Emotion regulation abnormalities in schizophrenia: Directed attention strategies fail to decrease the neurophysiological response to unpleasant stimuli. J Abnorm Psychol 2014; 124:288-301. [PMID: 25486078 DOI: 10.1037/abn0000017] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Previous research provides evidence that individuals with schizophrenia (SZ) have emotion regulation abnormalities, particularly when attempting to use reappraisal to decrease negative emotion. The current study extended this literature by examining the effectiveness of a different form of emotion regulation, directed attention, which has been shown to be effective at reducing negative emotion in healthy individuals. Participants included outpatients with SZ (n = 28) and healthy controls (CN: n = 25), who viewed unpleasant and neutral images during separate event-related potential and eye-movement tasks. Trials included both passive viewing and directed attention segments. During directed attention, gaze was directed toward highly arousing aspects of an unpleasant image, less arousing aspects of an unpleasant image, or a nonarousing aspect of a neutral image. The late positive potential (LPP) event-related potential component indexed emotion regulation success. Directing attention to nonarousing aspects of unpleasant images decreased the LPP in CN; however, SZ showed similar LPP amplitude when attention was directed toward more or less arousing aspects of unpleasant scenes. Eye tracking indicated that SZ were more likely than CN to attend to arousing portions of unpleasant scenes when attention was directed toward less arousing scene regions. Furthermore, pupilary data suggested that SZ patients failed to engage effortful cognitive processes needed to inhibit the prepotent response of attending to arousing aspects of unpleasant scenes when attention was directed toward nonarousing scene regions. Findings add to the growing literature indicating that individuals with SZ display emotion regulation abnormalities and provide novel evidence that dysfunctional emotion-attention interactions and generalized cognitive control deficits are associated with ineffective use of directed attention strategies to regulate negative emotion. (PsycINFO Database Record
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Affiliation(s)
- Gregory P Strauss
- Department of Psychology, State University of New York at Binghamton
| | | | - Adam J Culbreth
- Department of Psychiatry, University of Maryland School of Medicine
| | | | | | - Bern G Lee
- Department of Psychiatry, University of Maryland School of Medicine
| | - James M Gold
- Department of Psychiatry, University of Maryland School of Medicine
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