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Boetzel C, Stecher HI, Kasten FH, Herrmann CS. Modulating the difficulty of a visual oddball-like task and P3m amplitude. Sci Rep 2024; 14:1505. [PMID: 38233455 PMCID: PMC10794184 DOI: 10.1038/s41598-023-50857-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 12/27/2023] [Indexed: 01/19/2024] Open
Abstract
It is often necessary to modulate the difficulty of an experimental task without changing physical stimulus characteristics that are known to modulate event-related potentials. Here, we developed a new, oddball-like visual discrimination task with varying levels of difficulty despite using almost identical visual stimuli. Gabor patches of one orientation served as frequent standard stimuli with 75% probability. Gabor patches with a slightly different orientation served as infrequent target stimuli (25% probability). Analyzing the behavioral outcomes revealed a successful modulation of task difficulty, i.e. the hard condition revealed decreased d' values and longer reaction times for standard stimuli. In addition, we recorded MEG and computed event-related fields in response to the stimuli. In line with our expectation, the amplitude of the P3m was reduced in the hard condition. We localized the sources of the P3m with a focus on those that are modulated by changes in task difficulty. The sources of P3m modulation by difficulty were found primarily in the centro-parietal regions of both hemispheres. Additionally, we found significant differences in source activity between the easy and hard conditions in parts of the pre and post-central gyrus and inferior parietal lobe. Our findings are in line with previous research suggesting that the brain areas responsible for the conventional P3m generators also contribute to a modulation by task difficulty.
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Affiliation(s)
- Cindy Boetzel
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl von Ossietzky University, Ammerländer Heerstr. 114-118, 26129, Oldenburg, Germany
| | - Heiko I Stecher
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl von Ossietzky University, Ammerländer Heerstr. 114-118, 26129, Oldenburg, Germany
| | - Florian H Kasten
- Centre de Recherche Cerveau and Cognition, CNRS, Toulouse, France
- Université Toulouse III Paul Sabatier, Toulouse, France
| | - Christoph S Herrmann
- Experimental Psychology Lab, Department of Psychology, European Medical School, Cluster for Excellence "Hearing for All", Carl von Ossietzky University, Ammerländer Heerstr. 114-118, 26129, Oldenburg, Germany.
- Neuroimaging Unit, European Medical School, Carl von Ossietzky University, Oldenburg, Germany.
- Research Center Neurosensory Science, Carl von Ossietzky University, Oldenburg, Germany.
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Davidson A, Souza P. Relationships Between Auditory Processing and Cognitive Abilities in Adults: A Systematic Review. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2024; 67:296-345. [PMID: 38147487 DOI: 10.1044/2023_jslhr-22-00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
PURPOSE The contributions from the central auditory and cognitive systems play a major role in communication. Understanding the relationship between auditory and cognitive abilities has implications for auditory rehabilitation for clinical patients. The purpose of this systematic review is to address the question, "In adults, what is the relationship between central auditory processing abilities and cognitive abilities?" METHOD Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed to identify, screen, and determine eligibility for articles that addressed the research question of interest. Medical librarians and subject matter experts assisted in search strategy, keyword review, and structuring the systematic review process. To be included, articles needed to have an auditory measure (either behavioral or electrophysiologic), a cognitive measure that assessed individual ability, and the measures needed to be compared to one another. RESULTS Following two rounds of identification and screening, 126 articles were included for full analysis. Central auditory processing (CAP) measures were grouped into categories (behavioral: speech in noise, altered speech, temporal processing, binaural processing; electrophysiologic: mismatch negativity, P50, N200, P200, and P300). The most common CAP measures were sentence recognition in speech-shaped noise and the P300. Cognitive abilities were grouped into constructs, and the most common construct was working memory. The findings were mixed, encompassing both significant and nonsignificant relationships; therefore, the results do not conclusively establish a direct link between CAP and cognitive abilities. Nonetheless, several consistent relationships emerged across different domains. Distorted or noisy speech was related to working memory or processing speed. Auditory temporal order tasks showed significant relationships with working memory, fluid intelligence, or multidomain cognitive measures. For electrophysiology, relationships were observed between some cortical evoked potentials and working memory or executive/inhibitory processes. Significant results were consistent with the hypothesis that assessments of CAP and cognitive processing would be positively correlated. CONCLUSIONS Results from this systematic review summarize relationships between CAP and cognitive processing, but also underscore the complexity of these constructs, the importance of study design, and the need to select an appropriate measure. The relationship between auditory and cognitive abilities is complex but can provide informative context when creating clinical management plans. This review supports a need to develop guidelines and training for audiologists who wish to consider individual central auditory and cognitive abilities in patient care. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.24855174.
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Oliveira YMD, Calderaro VG, Massuda ET, Zanchetta S, Simões HDO. Does the Number of Stimuli Influence the Formation of the Endogenous Components of the Event-Related Auditory Evoked Potentials? Int Arch Otorhinolaryngol 2023; 27:e636-e644. [PMID: 37876687 PMCID: PMC10593534 DOI: 10.1055/s-0042-1759605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 09/12/2022] [Indexed: 10/26/2023] Open
Abstract
Introduction The number of stimuli is important to determine the quality of auditory evoked potential records. However, there is no consensus on that number in studies, especially in the sample studied. Objectives To investigate the influence of the number of rare stimuli on forming N2 and P3 components, with different types of acoustic stimuli. Methods Cross-sectional, descriptive, comparative study, approved by the ethics committee of the institution. The sample comprised 20 normal hearing adults of both sexes, aged 18 to 29 years old, with normal scores in the mental state examination and auditory processing skills. The event-related auditory evoked potentials were performed with nonverbal (1 kHz versus 2 kHz) and verbal stimuli (/BA/ versus /DA/). The number of rare stimuli varied randomly in the recordings, with 10, 20, 30, 40, and 50 presentations. Results P3 latency was significantly higher for nonverbal stimuli with 50 rare stimuli. N2 latency did not show any difference between the type and number of stimuli. The absolute P3 and N2-P3 amplitudes showed significant differences for both types of stimuli, with higher amplitude for 10 rare stimuli, in contrast with the other ones. The linear tendency test indicated significance only for the amplitude - as the number of rare stimuli increased, the amplitude tended to decrease. Conclusion The components were identifiable in the different numbers of rare stimuli and types of stimuli. The P3 and N2-P3 latency and amplitude increased with fewer verbal and nonverbal stimuli. Recording protocols must consider the number of rare stimuli.
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Affiliation(s)
- Yorran Marques de Oliveira
- Speech-language pathology and audiology Division, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto Ringgold Standard Institution, Ciências da Saúde, Ribeirão Preto, SP, Brazil
| | - Victor Goiris Calderaro
- Speech-language pathology and audiology Division, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto Ringgold Standard Institution, Ciências da Saúde, Ribeirão Preto, SP, Brazil
| | - Eduardo Tanaka Massuda
- Department of Ophthalmology, Otolaryngology and Head and Neck Surgery, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto Ringgold Standard Institution, Ribeirão Preto, SP, Brazil
| | - Sthella Zanchetta
- Speech-language pathology and audiology Division, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto Ringgold Standard Institution, Ciências da Saúde, Ribeirão Preto, SP, Brazil
| | - Humberto de Oliveira Simões
- Speech-language pathology and audiology Sector, Universidade de São Paulo, Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto Ringgold Standard Institution, Ribeirão Preto, SP, Brazil
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Global Functional Connectivity at Rest Is Associated with Attention: An Arterial Spin Labeling Study. Brain Sci 2023; 13:brainsci13020228. [PMID: 36831771 PMCID: PMC9954008 DOI: 10.3390/brainsci13020228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Neural markers of attention, including those frequently linked to the event-related potential P3 (P300) or P3b component, vary widely within and across participants. Understanding the neural mechanisms of attention that contribute to the P3 is crucial for better understanding attention-related brain disorders. All ten participants were scanned twice with a resting-state PCASL perfusion MRI and an ERP with a visual oddball task to measure brain resting-state functional connectivity (rsFC) and P3 parameters (P3 amplitudes and P3 latencies). Global rsFC (average rsFC across the entire brain) was associated with both P3 amplitudes (r = 0.57, p = 0.011) and P3 onset latencies (r = -0.56, p = 0.012). The observed P3 parameters were correlated with predicted P3 amplitude from the global rsFC (amplitude: r = +0.48, p = 0.037; latency: r = +0.40, p = 0.088) but not correlated with the rsFC over the most significant individual edge. P3 onset latency was primarily related to long-range connections between the prefrontal and parietal/limbic regions, while P3 amplitudes were related to connections between prefrontal and parietal/occipital, between sensorimotor and subcortical, and between limbic/subcortical and parietal/occipital regions. These results demonstrated the power of resting-state PCASL and P3 correlation with brain global functional connectivity.
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Kong X, Zhang P, Xiao F, Fang S, Ji X, Wang X, Lin P, Li H, Yao S, Wang X. State-independent and -dependent behavioral and neuroelectrophysiological characteristics during dynamic decision-making in patients with current and remitted depression. J Affect Disord 2022; 309:85-94. [PMID: 35472481 DOI: 10.1016/j.jad.2022.04.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/14/2022] [Accepted: 04/19/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND It is unclear whether the altered decision-making (DM) observed in patients with major depressive disorder (MDD) is neurophysiological and whether it improves with remission of depressive symptoms. The aim of this study was to identify developmental patterns of DM behavior, related cognitive characteristics, and electrophysiological abnormalities in patients with MDD across clinical stages. METHODS A sample of 48 first-episode MDD patients (FD group), 41 remitted MDD patients (RD group), and 43 healthy controls (HCs) completed psychometric assessments and performed the balloon analogue risk task (BART) while event-related potentials (ERPs) were recorded. RESULTS The RD group had lower depressiveness, self-blame, rumination, and catastrophizing tendencies, and higher mental resilience scores than the FD group, but retained significant differences from HCs. MDD patients showed a more conservative DM strategy than HCs, with no significant difference between the FD and RD groups. Compared to the FD group, the RD group had a smaller FRN for negative feedback and a trend toward a smaller P3 for positive feedback. Compared with HCs, the RD group had a smaller P3 during the positive feedback phase. FRN amplitude correlated positively with depression level and negatively with mental resilience. LIMITATIONS Because a comparative cross-section design was employed, longitudinal studies are needed to make causal inferences. CONCLUSION MDD patients presented a stable risk-avoidance bias in actively depressed and remission periods, consistent with a state-independent impairment pattern. Significantly reduced FRN amplitudes during remission indicated a state-dependent impairment pattern, and FRN amplitudes correlated with depression level. An abnormal feedback P3 component may be a state-independent characteristic that may become more pronounced with MDD progression.
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Affiliation(s)
- Xinyuan Kong
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China
| | - Panwen Zhang
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Shanghai Songjiang Jiuting Middle School, Shanghai, China
| | - Fan Xiao
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China
| | - Shulin Fang
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China
| | - Xinlei Ji
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China
| | - Xiaosheng Wang
- Department of Human Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha 410013, China
| | - Pan Lin
- Department of Psychology and Cognition and Human Behavior Key Laboratory of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Huanhuan Li
- Department of Psychology, Renmin University of China, Beijing 100872, China
| | - Shuqiao Yao
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China
| | - Xiang Wang
- Medical Psychological Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha 410011, China.
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Gender Differences in Cognitive and Personality Functioning in Patients With Substance Use Disorder. ADDICTIVE DISORDERS & THEIR TREATMENT 2021. [DOI: 10.1097/adt.0000000000000293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li F, Yi C, Liao Y, Jiang Y, Si Y, Song L, Zhang T, Yao D, Zhang Y, Cao Z, Xu P. Reconfiguration of Brain Network Between Resting State and P300 Task. IEEE Trans Cogn Dev Syst 2021. [DOI: 10.1109/tcds.2020.2965135] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pokorny VJ, Lano TJ, Schallmo MP, Olman CA, Sponheim SR. Reduced influence of perceptual context in schizophrenia: behavioral and neurophysiological evidence. Psychol Med 2021; 51:786-794. [PMID: 31858929 PMCID: PMC7444089 DOI: 10.1017/s0033291719003751] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Accurate perception of visual contours is essential for seeing and differentiating objects in the environment. Both the ability to detect visual contours and the influence of perceptual context created by surrounding stimuli are diminished in people with schizophrenia (SCZ). The central aim of the present study was to better understand the biological underpinnings of impaired contour integration and weakened effects of perceptual context. Additionally, we sought to determine whether visual perceptual abnormalities reflect genetic factors in SCZ and are present in other severe mental disorders. METHODS We examined behavioral data and event-related potentials (ERPs) collected during the perception of simple linear contours embedded in similar background stimuli in 27 patients with SCZ, 23 patients with bipolar disorder (BP), 23 first-degree relatives of SCZ, and 37 controls. RESULTS SCZ exhibited impaired visual contour detection while BP exhibited intermediate performance. The orientation of neighboring stimuli (i.e. flankers) relative to the contour modulated perception across all groups, but SCZ exhibited weakened suppression by the perceptual context created by flankers. Late visual (occipital P2) and cognitive (centroparietal P3) neural responses showed group differences and flanker orientation effects, unlike earlier ERPs (occipital P1 and N1). Moreover, behavioral effects of flanker context on contour perception were correlated with modulation in P2 & P3 amplitudes. CONCLUSION In addition to replicating and extending findings of abnormal contour integration and visual context modulation in SCZ, we provide novel evidence that the abnormal use of perceptual context is associated with higher-order sensory and cognitive processes.
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Affiliation(s)
- Victor J. Pokorny
- Minneapolis Veterans Affairs Health Care System, Minneapolis, MN 55417, USA
| | - Timothy J. Lano
- Minneapolis Veterans Affairs Health Care System, Minneapolis, MN 55417, USA
- Department of Psychiatry and Behavioral Science, University of Minnesota, Minneapolis, MN, USA
| | - Michael-Paul Schallmo
- Department of Psychiatry and Behavioral Science, University of Minnesota, Minneapolis, MN, USA
| | - Cheryl A. Olman
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - Scott R. Sponheim
- Minneapolis Veterans Affairs Health Care System, Minneapolis, MN 55417, USA
- Department of Psychiatry and Behavioral Science, University of Minnesota, Minneapolis, MN, USA
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Na E, Lee K, Kim EJ, Bae JB, Suh SW, Byun S, Han JW, Kim KW. Pre-attentive Visual Processing in Alzheimer's Disease: An Event-related Potential Study. Curr Alzheimer Res 2021; 17:1195-1207. [PMID: 33593259 DOI: 10.2174/1567205018666210216084534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 10/16/2020] [Accepted: 12/27/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION While identifying Alzheimer's Disease (AD) in its early stages is crucial, traditional neuropsychological tests tend to lack sensitivity and specificity for its diagnosis. Neuropsychological studies have reported visual processing deficits of AD, and event-related potentials (ERPs) are suitable to investigate pre-attentive processing with superior temporal resolution. OBJECTIVE This study aimed to investigate visual attentional characteristics of adults with AD, from pre-attentive to attentive processing, using a visual oddball task and ERPs. METHODS Cognitively normal elderly controls (CN) and patients with probable AD (AD) were recruited. Participants performed a three-stimulus visual oddball task and were asked to press a designated button in response to the target stimuli. The amplitudes of 4 ERPs were analyzed. Mismatchnegativity (vMMN) was analyzed around the parieto-occipital and temporo-occipital regions. P3a was analyzed around the fronto-central regions, whereas P3b was analyzed around the centro-parietal regions. RESULTS Late vMMN amplitudes of the AD group were significantly smaller than those of the CN group, while early vMMN amplitudes were comparable. Compared to the CN group, P3a amplitudes of the AD group were significantly smaller for the infrequent deviant stimuli, but the amplitudes for the standard stimuli were comparable. Lastly, the AD group had significantly smaller P3b amplitudes for the target stimuli compared to the CN group. CONCLUSION Our findings imply that AD patients exhibit pre-attentive visual processing deficits, known to affect later higher-order brain functions. In a clinical setting, the visual oddball paradigm could be used to provide helpful diagnostic information since pre-attentive ERPs can be induced by passive exposure to infrequent stimuli.
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Affiliation(s)
- Eunchan Na
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Kanghee Lee
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Eun J Kim
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jong B Bae
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seung W Suh
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seonjeong Byun
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ji W Han
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Ki W Kim
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea
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Höijer I, Ilonen T, Löyttyniemi E, Salokangas RK. Onset Age of Substance Use and Neuropsychological Performance in Hospital Patients. CLINICAL NEUROPSYCHIATRY 2020; 17:271-280. [PMID: 34909003 PMCID: PMC8667085 DOI: 10.36131/cnfioritieditore20200502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Several studies have found neurocognitive deficits in adolescents following substance abuse. Predisposing risk factors may further impact vulnerability to neurocognitive deficits. Little is known about the cognitive performance of adult onset substance users compared to earlier onset users. This study aims to explore differences in neuropsychological functioning between early (EOAs) and late onset substance abusers (LOAs) when the effects of confounding factors are controlled. METHOD Data for this cross-sectional study was collected from hospital patients. A total of 164 patients with substance use disorder (SUD) aged 19 to 65, 76 with single-drug diagnosis and 88 with multidrug diagnosis, underwent neuropsychological tests for verbal capacity, attention, speed of processing, perceptual reasoning, memory and learning, executive functioning, and inhibitory capacity. Associations between regular onset age and neuropsychological measures were analysed using in multi-way ANCOVA, and the effect of age, multiple substance abuse, education level and learning difficulties were controlled. RESULTS Compared with LOAs, EOAs had weaker performance in the Digit Symbol test for mono-substance users. Meanwhile, compared with EOAs, LOAs had weaker performance in the Delayed Visual Memory test and the Raven test for mono-substance users, and the Block Design test for poly-substance users. From the confounding factors, early onset age of substance use is heightened among individuals with learning disabilities. CONCLUSIONS Onset age of substance use is related to the deterioration of performance in neuropsychological tests. Premorbid poor learning and inhibitory capacity may be important predisposing risk factors of SUD. Conversely, high level of education may be a protective factor for cognitive performance in patients with SUD.
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Affiliation(s)
- Irma Höijer
- Doctoral Programme of Clinical Investigation, University of Turku, Finland,Corresponding author Irma Höijer, Doctoral Programme of Clinical Investigation,University of Turku E-mail:
| | - Tuula Ilonen
- Department of Psychiatry, University of Turku, Finland
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Höijer I, Ilonen T, Löyttyniemi E, Salokangas RKR. Neuropsychological performance in patients with substance use disorder with and without mood disorders. Nord J Psychiatry 2020; 74:444-452. [PMID: 32134345 DOI: 10.1080/08039488.2020.1734079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Background: Mood disorders commonly co-occur in patients with substance use disorders (SUD). This combination may increase the risk of pathological effects and impair cognitive functioning.Aim: The aim of the study was to examine the effects of mood and substance use disorders on specific neuropsychological measures.Methods: The participants comprised 164 hospitalised patients, 88 with (SUD + MD) and 76 (SUD-MD) without mood disorders, ranging in age from 19 to 65 years. Their diagnostic assessment was based on a psychiatric interview (ICD-10). Neuropsychological tests were carried out after a minimum of one month of abstinence.Results: Processing speed (p = 0.029), and perceptual reasoning (p = 0.039) were more impaired in the SUD + MD group than in the SUD-MD group. An Analysis of covariance (ANCOVA) controlled for age, education level, learning difficulties and polysubstance use revealed that the groups were most powerfully separated by the Digit Symbol test and the Block Design test.Conclusions: Patients with substance abuse and mood disorders seem to have more deficits in speed processing and perceptual reasoning than substance abuse patients without mood disorders. These processing speed difficulties and perceptual problems may impact prognosis and treatment. The Digit Symbol test and the Block Design test are a fast and sensitive ways to examine treatment effectiveness and monitor treatment progress.
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Affiliation(s)
- Irma Höijer
- Doctoral Programme of Clinical Investigation, University of Turku, Turku, Finland
| | - Tuula Ilonen
- Department of Psychiatry, University of Turku, Turku, Finland
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Wu D, Yang CC, Chen KY, Lin YC, Wu PJ, Hsieh PH, Nakao Y, Ow MYL, Hsieh YC, Hu CJ. Hydrolyzed Chicken Extract (ProBeptigen ®) on Cognitive Function in Healthy Middle-Aged People: A Randomized Double-Blind Trial. Nutrients 2020; 12:nu12051362. [PMID: 32397609 PMCID: PMC7284526 DOI: 10.3390/nu12051362] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 12/16/2022] Open
Abstract
Cognitive decline is an important issue of global public health. Cognitive aging might begin at middle adulthood, the period particularly vulnerable to stress in lifespan. Essence of chicken (EOC) has consistently demonstrated its beneficial effects on various cognitive domains as nutritional supplementation. This study primarily aimed to examine the cognitive enhancement effects of ProBeptigen® (previously named CMI-168), hydrolyzed peptides extracted from EOC, in healthy middle-aged people under mild stress. Ninety healthy subjects were randomly assigned into the ProBeptigen® or placebo group for eight weeks. Neurocognitive assessment, event-related potentials (ERPs), and blood tests were conducted before, during, and after the treatment. The ProBeptigen® group outperformed placebo group on Logical Memory subtests of Wechsler Memory Scale-third edition (WMS-III) and Spatial Working Memory task in the Cambridge Neuropsychological Test Automated Battery (CANTAB). The anti-inflammatory effects of ProBeptigen® in humans were also confirmed, with progressively declining high-sensitivity C-reactive protein (hs-CRP) levels. Regular dietary supplementation of ProBeptigen® is suggested to improve verbal short- and long-term memory as well as spatial working memory, and reduce inflammation in middle-aged healthy individuals with stress. The effects of ProBeptigen® on cognition warrant further investigation. (NCT03612752)
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Affiliation(s)
- Dean Wu
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Cheng-Chang Yang
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
- Research Center for Brain and Consciousness, Taipei Medical University, Taipei 235, Taiwan
| | - Kuan-Yu Chen
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
| | - Ying-Chin Lin
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- Department of Family Medicine, Wanfang Hospital, Taipei 116, Taiwan
| | - Pei-Jung Wu
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
| | - Pei-Hsiu Hsieh
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
| | - Yoshihiro Nakao
- Research and Development, BRAND’S Suntory Asia, Singapore 138623, Singapore; (Y.N.); (M.Y.L.O.)
| | - Mandy Y. L. Ow
- Research and Development, BRAND’S Suntory Asia, Singapore 138623, Singapore; (Y.N.); (M.Y.L.O.)
| | - Yi-Chen Hsieh
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (Y.-C.H.); (C.-J.H.)
| | - Chaur-Jong Hu
- Department of Neurology, Shuang-Ho Hospital, Taipei Medical University, New Taipei 235, Taiwan; (D.W.); (C.-C.Y.); (K.-Y.C.); (P.-J.W.); (P.-H.H.)
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan;
- PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (Y.-C.H.); (C.-J.H.)
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Li F, Tao Q, Peng W, Zhang T, Si Y, Zhang Y, Yi C, Biswal B, Yao D, Xu P. Inter-subject P300 variability relates to the efficiency of brain networks reconfigured from resting- to task-state: Evidence from a simultaneous event-related EEG-fMRI study. Neuroimage 2020; 205:116285. [DOI: 10.1016/j.neuroimage.2019.116285] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 09/12/2019] [Accepted: 10/14/2019] [Indexed: 11/15/2022] Open
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14
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Kruiper C, Fagerlund B, Nielsen MØ, Düring S, Jensen MH, Ebdrup BH, Glenthøj BY, Oranje B. Associations between P3a and P3b amplitudes and cognition in antipsychotic-naïve first-episode schizophrenia patients. Psychol Med 2019; 49:868-875. [PMID: 29914589 DOI: 10.1017/s0033291718001575] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Cognitive deficits are already present in early stages of schizophrenia. P3a and P3b event-related potentials (ERPs) are believed to underlie the processes of attention and working memory (WM), yet limited research has been performed on the associations between these parameters. Therefore, we explored possible associations between P3a/b amplitudes and cognition in a large cohort of antipsychotic-naïve, first-episode schizophrenia (AN-FES) patients and healthy controls (HC). METHODS Seventy-three AN-FES patients and 93 age- and gender-matched HC were assessed for their P3a/b amplitude with an auditory oddball paradigm. In addition, subjects performed several subtests from the Cambridge Neuropsychological Test Automated Battery (CANTAB). RESULTS AN-FES patients had significantly reduced P3a/b amplitudes, as well as significantly lower scores on all cognitive tests compared with HC. Total group correlations revealed positive associations between P3b amplitude and WM and sustained attention and negative associations with all reaction time measures. These associations appeared mainly driven by AN-FES patients, where we found a similar pattern. No significant associations were found between P3b amplitude and cognitive measures in our HC. P3a amplitude did not correlate significantly with any cognitive measures in either group, nor when combined. CONCLUSIONS Our results provide further evidence for P3a/b amplitude deficits and cognitive deficits in AN-FES patients, which are neither due to antipsychotics nor to disease progress. Furthermore, our data showed significant, yet weak associations between P3b and cognition. Therefore, our data do not supply evidence for deficient P3a/b amplitudes as direct underlying factors for cognitive deficits in schizophrenia.
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Affiliation(s)
- Caitlyn Kruiper
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Birgitte Fagerlund
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Mette Ø Nielsen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Signe Düring
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Maria H Jensen
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Bjørn H Ebdrup
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Birte Y Glenthøj
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
| | - Bob Oranje
- Center for Neuropsychiatric Schizophrenia Research (CNSR) and Center for Clinical Intervention and Neuropsychiatric Schizophrenia Research (CINS), Mental Health Centre Glostrup, University of Copenhagen,Copenhagen,Denmark
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15
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Qin Y, Xin X, Zhu H, Li F, Xiong H, Zhang T, Lai Y. A Comparative Study on the Dynamic EEG Center of Mass with Different References. Front Neurosci 2017; 11:509. [PMID: 28955195 PMCID: PMC5601041 DOI: 10.3389/fnins.2017.00509] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 08/28/2017] [Indexed: 11/30/2022] Open
Abstract
One of the most fundamental issues during an EEG study is choosing an available neutral reference. The infinity zero reference obtained by the reference electrode standardization technique (REST) has been recommended and used for its higher accuracy. This paper examined three traditional references, the average reference (AR), the linked mastoids reference (LM), and REST, in the study of the EEG center of mass (CM) using simulated and real ERPs. In the simulation, the relative error of REST was the smallest among the references. As for the ERP data with the visual oddball paradigm, the dynamic CM trajectory and its traveling velocity obtained by REST characterized three typical stages in spatial domain and temporal speed metrics, which provided useful information in addition to the distinct ERP waveform in the temporal domain. The results showed that the CM traveling from the frontal to parietal areas corresponding to the earlier positive components (i.e., P200 and P250), stays temporarily at the parietal area corresponding to P300 and then returns to the frontal area during the recovery stage. Compared with REST, AR, and LM not only changed the amplitude of P300 significantly but distorted the CM trajectory and its instantaneous velocity. As REST continues to provide objective results, we recommend that REST be used in future EEG/ERP CM studies.
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Affiliation(s)
- Yun Qin
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in Medicine, University of Electronic Science and Technology of ChinaChengdu, China.,High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, University of Electronic Science and Technology of ChinaChengdu, China
| | - Xiuwei Xin
- High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, University of Electronic Science and Technology of ChinaChengdu, China
| | - Hao Zhu
- High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, University of Electronic Science and Technology of ChinaChengdu, China
| | - Fali Li
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in Medicine, University of Electronic Science and Technology of ChinaChengdu, China
| | - Hongchuan Xiong
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in Medicine, University of Electronic Science and Technology of ChinaChengdu, China
| | - Tao Zhang
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in Medicine, University of Electronic Science and Technology of ChinaChengdu, China.,High-Field Magnetic Resonance Brain Imaging Key Laboratory of Sichuan Province, School of Life Science and Technology, University of Electronic Science and Technology of ChinaChengdu, China
| | - Yongxiu Lai
- Key Laboratory for NeuroInformation of Ministry of Education, Center for Information in Medicine, University of Electronic Science and Technology of ChinaChengdu, China
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16
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Zhang D, Xu F, Xu H, Shull PB, Zhu X. Quantifying Different Tactile Sensations Evoked by Cutaneous Electrical Stimulation Using Electroencephalography Features. Int J Neural Syst 2016; 26:1650006. [DOI: 10.1142/s0129065716500064] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Psychophysical tests and standardized questionnaires are often used to analyze tactile sensation based on subjective judgment in conventional studies. In contrast with the subjective evaluation, a novel method based on electroencephalography (EEG) is proposed to explore the possibility of quantifying tactile sensation in an objective way. The proposed experiments adopt cutaneous electrical stimulation to generate two kinds of sensations (vibration and pressure) with three grades (low/medium/strong) on eight subjects. Event-related potentials (ERPs) and event-related synchronization/desynchronization (ERS/ERD) are extracted from EEG, which are used as evaluation indexes to distinguish between vibration and pressure, and also to discriminate sensation grades. Results show that five-phase P1–N1–P2–N2–P3 deflection is induced in EEG. Using amplitudes of latter ERP components (N2 and P3), vibration and pressure sensations can be discriminated on both individual and grand-averaged ERP ([Formula: see text]). The grand-average ERPs can distinguish the three sensations grades, but there is no significant difference on individuals. In addition, ERS/ERD features of mu rhythm (8–13[Formula: see text]Hz) are adopted. Vibration and pressure sensations can be discriminated on grand-average ERS/ERD ([Formula: see text]), but only some individuals show significant difference. The grand-averaged results show that most sensation grades can be differentiated, and most pairwise comparisons show significant difference on individuals ([Formula: see text]). The work suggests that ERP- and ERS/ERD-based EEG features may have potential to quantify tactile sensations for medical diagnosis or engineering applications.
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Affiliation(s)
- Dingguo Zhang
- State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, #800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Fei Xu
- State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, #800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Heng Xu
- State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, #800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Peter B. Shull
- State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, #800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
| | - Xiangyang Zhu
- State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, #800 Dongchuan Road, Minhang District, Shanghai 200240, P. R. China
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17
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Dejanović M, Ivetić V, Nestorović V, Erić M, Stanojević Z, Leštarević S. The role of P300 event-related potentials in the cognitive recovery after the stroke. Acta Neurol Belg 2015; 115:589-95. [PMID: 25578637 DOI: 10.1007/s13760-015-0428-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Accepted: 01/05/2015] [Indexed: 11/25/2022]
Abstract
The aim of this study was to elucidate the effects of an ischemic stroke on the amplitude and latency of the P300 wave and evaluate their changes over a prospective 1-year follow-up period. We recorded the P300 wave using an auditory oddball paradigm in 60 consecutive brain infarct patients at baseline (i.e., within 4 weeks after the stroke), after 3 months, after 12 months and in 30 healthy control subjects. The P300 latencies in stroke patients were significantly longer and the P300 amplitudes were significantly smaller than those of the control group. The latency of P300 showed a highly significant average improvement 12 months after the stroke compared to the baseline. There was no significant change observed for the P300 amplitude during the same period. The P3 latency is initially more increased in the patients with hemispheric brain infarction but shows a better recovery compared to the patients with brainstem infarction. Also, the results of the P300 latency of patients with the left-sided lesions was significantly longer compared to the patients with right-sided lesions on the beginning of the study but not 3 and 12 months after the stroke. The results of our study show the importance of P300 event-related potentials in the detection and follow-up of cognitive changes after ischemic stroke.
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Affiliation(s)
- Mirjana Dejanović
- Department of Physiology, Faculty of Medicine, University of Priština, Anri Dinana bb, 38 220, Kosovska Mitrovica, Serbia.
| | - Vesna Ivetić
- Laboratory of Neurophysiology, Department of Physiology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Vojkan Nestorović
- Department of Physiology, Faculty of Medicine, University of Priština, Anri Dinana bb, 38 220, Kosovska Mitrovica, Serbia
| | - Mirela Erić
- Department of Anatomy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Zorica Stanojević
- Department of Pharmacology, Faculty of Medicine, University of Priština, Kosovska Mitrovica, Serbia
| | - Snežana Leštarević
- Department of Histology, Faculty of Medicine, University of Priština, Kosovska Mitrovica, Serbia
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18
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Li F, Liu T, Wang F, Li H, Gong D, Zhang R, Jiang Y, Tian Y, Guo D, Yao D, Xu P. Relationships between the resting-state network and the P3: Evidence from a scalp EEG study. Sci Rep 2015; 5:15129. [PMID: 26456594 PMCID: PMC4601035 DOI: 10.1038/srep15129] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 09/17/2015] [Indexed: 01/01/2023] Open
Abstract
The P3 is an important event-related potential that can be used to identify neural activity related to the cognitive processes of the human brain. However, the relationships, especially the functional correlations, between resting-state brain activity and the P3 have not been well established. In this study, we investigated the relationships between P3 properties (i.e., amplitude and latency) and resting-state brain networks. The results indicated that P3 amplitude was significantly correlated with resting-state network topology, and in general, larger P3 amplitudes could be evoked when the resting-state brain network was more efficient. However, no significant relationships were found for the corresponding P3 latency. Additionally, the long-range connections between the prefrontal/frontal and parietal/occipital brain regions, which represent the synchronous activity of these areas, were functionally related to the P3 parameters, especially P3 amplitude. The findings of the current study may help us better understand inter-subject variation in the P3, which may be instructive for clinical diagnosis, cognitive neuroscience studies, and potential subject selection for brain-computer interface applications.
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Affiliation(s)
- Fali Li
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Tiejun Liu
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China.,Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Fei Wang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - He Li
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Diankun Gong
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Rui Zhang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yi Jiang
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Yin Tian
- College of Bio-information, ChongQing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Daqing Guo
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China.,Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Dezhong Yao
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China.,Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Peng Xu
- Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 610054, China.,Center for Information in BioMedicine, University of Electronic Science and Technology of China, Chengdu, 610054, China
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19
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Shang Q, Huang Y, Ma Q. Hazard levels of warning signal words modulate the inhibition of return effect: evidence from the event-related potential P300. Exp Brain Res 2015; 233:2645-53. [PMID: 26055988 DOI: 10.1007/s00221-015-4335-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 05/20/2015] [Indexed: 11/28/2022]
Abstract
Warning signal words are often used to convey valuable information about potential dangers in everyday life. In this study, we explored whether and how the hazard level of warning signal words modulated participants' attention to subsequent targets. Event-related potentials with high temporal resolution were employed in a cue-target paradigm. In this task, warning signal words with different hazard levels were used as cues. Participants were required to judge whether targets were presented on the screen horizontally or vertically. We found an inhibition of return (IOR) effect, i.e., participants had longer reaction times to validly cued targets than to invalidly cued targets. Accordingly, the IOR effect was reflected by a smaller P300 amplitude for invalidly cued targets compared to validly cued targets. Furthermore, the IOR effect was eliminated when the cues were high-hazard words. The dampening effect on the P300 was eliminated when the cues were high-hazard warning signal words. The lack of an IOR was attributed to participants' attentional bias to high-hazard stimuli, which are difficult for participants to disengage their attention from. The current study suggests that warning signal words are a particular type of stimulus that can override the IOR effect. Warning signal words with a high hazard level are more effective in successfully alerting people to risk in a hazardous environment.
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Affiliation(s)
- Qian Shang
- School of Management, Hanzhou Dianzi University, Hangzhou, People's Republic of China
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20
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Winterer G, Gallinat J, Brinkmeyer J, Musso F, Kornhuber J, Thuerauf N, Rujescu D, Favis R, Sun Y, Franc MA, Ouwerkerk-Mahadevan S, Janssens L, Timmers M, Streffer JR. Allosteric alpha-7 nicotinic receptor modulation and P50 sensory gating in schizophrenia: a proof-of-mechanism study. Neuropharmacology 2012; 64:197-204. [PMID: 22766391 DOI: 10.1016/j.neuropharm.2012.06.040] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/06/2012] [Accepted: 06/18/2012] [Indexed: 10/28/2022]
Abstract
In this multicenter, double-blind, placebo-controlled, randomized, four way cross-over proof-of-mechanism study, we tested the effect of the positive allosteric α7 nicotinic acetylcholine receptor (nAChR) modulator JNJ-39393406 in a key translational assay (sensory P50 gating) in 39 regularly smoking male patients with schizophrenia. All patients were clinically stable and JNJ-39393406 was administered as an adjunct treatment to antipsychotics. No indication was found that JNJ-39393406 has the potential to reverse basic deficits of information processing in schizophrenia (sensory P50 gating) or has a significant effect on other tested electrophysiological markers (MMN, P300 and quantitative resting EEG). Sensitivity analyses including severity of disease, baseline P50 gating, medication and gene variants of the CHRNA7 gene did not reveal any subgroups with consistent significant effects. It is discussed that potential positive effects in subgroups not present or not large enough in the current study or upon chronic dosing are possible, but unlikely to be developed. This article is part of a Special Issue entitled 'Cognitive Enhancers'.
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Affiliation(s)
- Georg Winterer
- Cologne Center for Genomics, University of Cologne, Cologne, Germany.
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21
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Bae KY, Kim DW, Im CH, Lee SH. Source imaging of P300 auditory evoked potentials and clinical correlations in patients with posttraumatic stress disorder. Prog Neuropsychopharmacol Biol Psychiatry 2011; 35:1908-17. [PMID: 21843580 DOI: 10.1016/j.pnpbp.2011.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 08/01/2011] [Accepted: 08/02/2011] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Posttraumatic stress disorder (PTSD) is associated with abnormal information processing. The P300 component of event-related potentials (ERPs) is known to be a useful marker of information processing. The purposes of this study were to determine the P300 current source density in PTSD patients, and its relationship with symptom severity. METHODS ERPs were recorded in 30 PTSD patients and 33 healthy controls while participants were performing the auditory oddball task. We compared P300 current source density data--obtained by standardized low-resolution brain electromagnetic tomography (sLORETA)--between the two groups. The correlation between P300 current source density and clinical symptoms (as evaluated using the Korean version of the Structured Interview for PTSD--K-SIPS and Davidson Trauma Scale--K-DTS) was conducted. RESULTS In PTSD patients, the current source density of P300 is significantly reduced in the inferior frontal gyrus, precentral gyrus, insula, and anterior cingulate compared to healthy controls. Total K-DTS scores were correlated with the P300 current source density in the posterior cingulate gyrus. The K-SIP B items (re-experiencing) and K-SIB D items (increased arousal) were positively correlated with P300 current source densities in several brain regions located in the frontal, parietal, and temporal lobe (p<0.05). Conversely, the K-SIP C items (avoidance and numbing) were negatively correlated with P300 current source densities in the superior and middle frontal gyri in the frontal lobes (p<0.05). CONCLUSION The P300 current source densities reflected the pathophysiology of PTSD patients. PTSD symptoms were related to different neural activities, depending on their symptom characteristics.
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Affiliation(s)
- Kyung-Yeol Bae
- Department of Psychiatry, Chonnam National University Hospital, Gwangju, Republic of Korea
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22
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Naskar S, Sood SK, Goyal V. Effect of acute deep brain stimulation of the subthalamic nucleus on auditory event-related potentials in Parkinson's disease. Parkinsonism Relat Disord 2010; 16:256-60. [DOI: 10.1016/j.parkreldis.2009.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2009] [Revised: 12/08/2009] [Accepted: 12/08/2009] [Indexed: 11/30/2022]
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Behavioural correlates of the P3b event-related potential in school-age children. Int J Psychophysiol 2010; 76:148-57. [PMID: 20338199 DOI: 10.1016/j.ijpsycho.2010.03.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Revised: 02/22/2010] [Accepted: 03/12/2010] [Indexed: 11/23/2022]
Abstract
The latency and amplitude of the P3b component of event-related potentials (ERPs) have been related to behavioural performance on several attention and memory tasks in adult populations. However, the extent to which these results apply to children is unknown. This study examined the neurobehavioral correlates of the P3b component in a longitudinal sample of school-age children from Arctic Québec. Children (N=110; mean age=11.3years) were assessed on an ERP auditory oddball paradigm and a neurobehavioral evaluation targeting several aspects of cognition, including the Stewart Extended Continuous Performance Test (E-CPT), California Verbal Learning Test (CVLT), Stroop Color-Word Interference Test, and five subtests from the Wechsler Intelligence Scale for Children-Fourth edition (WISC-IV). P3b latency was positively related to reaction time measures and negatively associated with performance on the WISC-IV Digit Span Forward subtest. Amplitude of the P3b was associated with shorter completion time on the Stroop test and better delayed recognition memory performance among children who did not use semantic strategies on the CVLT. Profile analyses revealed no difference in scalp distribution of the P3b according to performance on these tests. The results are consistent with previous studies with older participants and suggest that, despite age-related differences in waveform and scalp distribution, the P3b component relates to similar neurocognitive processes in children and adults.
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24
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Boucher O, Muckle G, Saint-Amour D, Dewailly E, Ayotte P, Jacobson SW, Jacobson JL, Bastien CH. The relation of lead neurotoxicity to the event-related potential P3b component in Inuit children from arctic Québec. Neurotoxicology 2009; 30:1070-7. [PMID: 19576242 DOI: 10.1016/j.neuro.2009.06.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2009] [Revised: 06/05/2009] [Accepted: 06/19/2009] [Indexed: 11/30/2022]
Abstract
The event-related potential (ERP) P3b, a cognitive electrophysiological measure that has been linked to working memory processing in many experimental paradigms, was measured in Inuit children from Nunavik (Arctic Québec, Canada) to assess lead (Pb) neurotoxicity. Visual and auditory oddball paradigms were administered at 5 (N=27) and 11 (N=110) years of age, respectively, to elicit this ERP component. Pearson correlations and multiple regression analyses were performed to examine the associations between Pb levels and P3b parameters (peak latency and amplitude). Greater prenatal Pb exposure was related to a decrease in P3b amplitude at 5 years of age, and early childhood Pb exposure was associated with delayed P3b latency at 5 years. No significant association was observed at 11 years. These results, in line with those from previous neurobehavioral studies, suggest that Pb exposure affects cognitive processing in children even though the Pb levels measured in a large majority of our sample were below the threshold value for public health intervention used by federal agencies. This study strengthens the arguments for reducing sources of Pb exposure in Nunavik and for lowering the blood Pb concentrations considered "acceptable" in governmental policies.
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25
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Russo PM, De Pascalis V, Varriale V, Barratt ES. Impulsivity, intelligence and P300 wave: An empirical study. Int J Psychophysiol 2008; 69:112-8. [DOI: 10.1016/j.ijpsycho.2008.03.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 03/22/2008] [Accepted: 03/24/2008] [Indexed: 10/22/2022]
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26
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Keski-Säntti P, Kovala T, Holm A, Hyvärinen HK, Sainio M. Quantitative EEG in occupational chronic solvent encephalopathy. Hum Exp Toxicol 2008; 27:315-20. [DOI: 10.1177/0960327107082231] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The aim of this study was to characterize the quantitative analyzed EEG (electroencephalogram) findings (qEEG) in chronic solvent encephalopathy (CSE) patients and study whether the qEEG findings associate with the duration and intensity of the solvent exposure. Also, the diagnostic value of qEEG in CSE is discussed. The EEG of 47 male CSE patients was analyzed. The laboratory’s own reference EEG values of 24 healthy male subjects formed the laboratory control group. We also used an age-matched control group of 100 male blue-collar workers without occupational solvent exposure. The main finding of our study was that the power of the frontal theta band is increased in the CSE patient group compared with the laboratory control group. This suggests that the frontal cortex may be susceptible to the noxious effects of solvents. However, this difference was not seen in comparison with the matched control group, and thus, the connection with solvent effects remains uncertain. The variables indicating the level of solvent exposure did not associate with the power of the theta activity in the frontal area. Because of the small amount and unspecificity of the observed abnormalities, qEEG cannot be recommended to be used in the clinical diagnostics of solvent encephalopathy.
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Affiliation(s)
- P Keski-Säntti
- Department of Neurology, Jorvi Hospital, Helsinki University Central Hospital, Espoo, Finland; Department of Occupational Medicine, Finnish Institute of Occupational Health, Brain and Work Research Centre, Helsinki, Finland
| | - T Kovala
- Department of Occupational Medicine, Finnish Institute of Occupational Health, Brain and Work Research Centre, Helsinki, Finland
| | - A Holm
- Department of Occupational Medicine, Finnish Institute of Occupational Health, Brain and Work Research Centre, Helsinki, Finland
| | - HK Hyvärinen
- Department of Occupational Medicine, Finnish Institute of Occupational Health, Brain and Work Research Centre, Helsinki, Finland
| | - M Sainio
- Department of Occupational Medicine, Finnish Institute of Occupational Health, Brain and Work Research Centre, Helsinki, Finland
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Bennys K, Portet F, Touchon J, Rondouin G. Diagnostic Value of Event-Related Evoked Potentials N200 and P300 Subcomponents in Early Diagnosis of Alzheimer’s Disease and Mild Cognitive Impairment. J Clin Neurophysiol 2007; 24:405-12. [PMID: 17912065 DOI: 10.1097/wnp.0b013e31815068d5] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Event-related potentials (ERPs) have a large application in the evaluation of cognitive processes, particularly in Alzheimer's disease (AD). The aim of the present study was to evaluate the clinical relevance of event-related evoked potentials (N2 and P3 subcomponents) in early diagnosis of AD and mild cognitive impairment (MCI). We prospectively studied 60 subjects. They all underwent the following investigations: neurologic and neuropsychological examination; functional evaluation, i.e., ERPs; cerebral imagery (morphologic and functional). Subjects were classified into 3 groups: group 1: 30 dementia of Alzheimer type (NINCDS-ADRDA, DSM-IV criteria); group 2: 20 MCI; and group 3: 10 control subjects. ERPs were significantly different between the groups (AD, MCI, control subjects), with a marked increase of P3 latencies, particularly when compared with N2 latencies (P < 0.0001). Furthermore, sensitivity was 87% to 95% for the differentiation of AD patients from MCI and control subjects, using prolonged P3 latencies (specificity, 90% to 95%), whereas using N2 prolonged latencies, sensitivity was 70% to 75% (specificity, 70% to 90%). Moreover, in the MCI group, N2 latencies strongly discriminated MCI from control subjects, with 90% sensitivity and 70% specificity and correctly categorized 80% of MCI subjects against 73% for P3. The abnormalities of N2 and P3 components may be linked, in AD and MCI, to an alteration of automatic and controlled attention processing.
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Affiliation(s)
- Karim Bennys
- Department of Neurology, University Hospital of Montpellier, France.
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Ilardi SS, Atchley RA, Enloe A, Kwasny K, Garratt G. Disentangling Attentional Biases and Attentional Deficits in Depression: An Event-Related Potential P300 Analysis. COGNITIVE THERAPY AND RESEARCH 2007. [DOI: 10.1007/s10608-006-9113-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Akila R, Müller K, Kaukiainen A, Sainio M. Memory Performance Profile in Occupational Chronic Solvent Encephalopathy Suggests Working Memory Dysfunction. J Clin Exp Neuropsychol 2007; 28:1307-26. [PMID: 17050260 DOI: 10.1080/13803390500477515] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This pilot study characterizes memory functioning of 11 men with occupational chronic solvent encephalopathy (CSE). Pattern (PRM) and spatial recognition (SRM), spatial span (SSP), spatial working memory (SWM), and paired associate learning (PAL) from Cambridge Neuropsychological Test Automated Battery were performed twice. The most sensitive variables to show impairment were PAL trials, SRM total correct, and SWM number of between-search errors. The majority of the CSE patients demonstrated mild deficits. The most persistent dysfunction was in tasks demanding working memory processing, which predicted well the CSE status. Qualitatively, the memory deficits resemble those seen in moderate or severe Parkinson's disease.
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Affiliation(s)
- Ritva Akila
- Brain and Work Research Centre, Finnish Institute of Occupational Health, Helsinki, Finland.
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Ally BA, Jones GE, Cole JA, Budson AE. The P300 component in patients with Alzheimer's disease and their biological children. Biol Psychol 2006; 72:180-7. [PMID: 16337071 DOI: 10.1016/j.biopsycho.2005.10.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2005] [Revised: 09/07/2005] [Accepted: 10/12/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVE There are few studies examining P300 in the biological children of patients with Alzheimer's disease (AD). In addition to examining P300 in patients with AD, the current study examined the utility of P300 as a preclinical marker in the offspring of AD patients. METHODS P300 was elicited from an AD group, their biological children, and two age- and gender-matched control groups using the auditory oddball paradigm. Each group consisted of 20 subjects each. ERPs recorded from sites Fz, Cz, and Pz were analysed using analysis of variance. RESULTS Amplitudes were significantly smaller in the AD group when compared to controls. Both amplitude and latency values in the FH+ group were significantly impaired when compared to its control group. CONCLUSION These findings replicate previous P300 amplitude abnormalities found in patients with AD. Further, participants with a family history of AD demonstrate possible preclinical evidence at the electrophysiological level. Comparisons with other findings and theoretical implications are discussed.
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Affiliation(s)
- Brandon A Ally
- Harvard Medical School and New England GRECC, Geriatric Neuropsychology Laboratory, USA.
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Karl A, Malta LS, Maercker A. Meta-analytic review of event-related potential studies in post-traumatic stress disorder. Biol Psychol 2006; 71:123-47. [PMID: 15961210 DOI: 10.1016/j.biopsycho.2005.03.004] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2004] [Accepted: 03/17/2005] [Indexed: 11/19/2022]
Abstract
In recent years there has been an accumulation of studies that have utilized the measurement of event-related potentials (ERP) to examine the neuroelectric correlates of hypothesized alterations in information processing in persons with post-traumatic stress disorder (PTSD). The objective of this meta-analysis was to summarize the findings of ERP PTSD research, including studies that have examined P50 auditory sensory gating, augmenting-reducing P200, and P300 in target detection oddball tasks. The results suggest that persons with PTSD exhibit alterations in the amplitude and latency of ERP within these paradigms that support the hypothesis that changes in information processing can accompany PTSD. The results were also consistent with recent cognitive neuropsychological findings in PTSD research.
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Affiliation(s)
- Anke Karl
- Biopsychology, University of Technology Dresden, Zellescher Weg 17, D-01062 Dresden, FR, Germany.
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Gurrera RJ, Salisbury DF, O'Donnell BF, Nestor PG, McCarley RW. Auditory P3 indexes personality traits and cognitive function in healthy men and women. Psychiatry Res 2005; 133:215-28. [PMID: 15740997 DOI: 10.1016/j.psychres.2004.09.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2003] [Revised: 08/13/2004] [Accepted: 09/10/2004] [Indexed: 10/25/2022]
Abstract
The relationship of the auditory P3 event-related potential to major personality dimensions and neuropsychological performance was examined in psychiatrically healthy men and women (28 male, 15 female) recruited from the community. An auditory oddball paradigm was used to collect P3 amplitude and latency data. Personality traits were measured with the NEO Five-Factor Inventory. Several Wechsler Adult Intelligence Scale-Revised (WAIS-R) subtests, the Digit Symbol Test, and the Trail Making Test comprised the neuropsychological tests. A multivariate statistical procedure (Partial Least Squares) was used to quantify the relationships between P3 variables and personality and neuropsychological performance variables. P3 amplitude was negatively related to Neuroticism and positively related to Extraversion, Openness, Agreeableness and Conscientiousness. Better neuropsychological performance was associated with greater P3 amplitude and earlier latency. Thus, greater P3 amplitude was associated with less deviant personality scores and better neuropsychological performance in healthy subjects. Earlier P3 latency was also associated with better neuropsychological performance. The physiological significance of these relationships is not yet clear, but these results suggest that neural assemblies indexed by P3 may subserve both elemental cognition and healthy personality function.
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Affiliation(s)
- Ronald J Gurrera
- Harvard Medical School, Department of Psychiatry, Boston MA, USA
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Braverman ER, Blum K. P300 (Latency) Event-Related Potential: An Accurate Predictor of Memory Impairment. ACTA ACUST UNITED AC 2003; 34:124-39. [PMID: 14521274 DOI: 10.1177/155005940303400306] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To determine if P300 latency changes precede and correlate with memory and mental status, patients (N=1506 aged 20–100 years) who received medical and psychiatric diagnoses (from 1997 to 2002), were assessed for P300 (N=1496), WMS-III (N=694), and MMSE (N=456). Patient and control groups included, a) normal WMS-III on all 4 subscales (N=36), b) normal WMS-III and MMSE (N=189) with subjective memory/mental status complaints, and c) medical patients with normal WMS-III and no memory complaints (N=205), and d) P300 control group without medical, psychiatric or memory problems for ROC. Patients with impaired/borderline memory had a prolonged P300 latency (P<0.02) compared to age matched non-impaired controls; in patients with normal WMS-III/MMSE, with subjective mild memory/mental status impairment, P300 latency was prolonged compared to controls (P=0.0004). The P300 latency increased by 0.72ms per year (P=7.9×10−65) and voltage decreased by 0.03dV per year (P=6.7×10−10), and both parameters were linearly correlated with the age of the subjects. Male subjects had an average voltage of 6.1dV and female 6.8dV(P=0.00009). Statistically, prolonged latency began at age range 41–50 (P=0.0002); reduced P300 voltage began at age range 51–60 (P=0.003). WMS-III memory decline for all measures began in females at age range 61–70 (P value at least=0.02) and for males at age range 61–80 (P=0.02). Prolonged P300 latency (P≤0.0001) and memory impairment (at least <0.02) were greater for females than males. MMSE memory decline, male and female, began at age range 81–90 (P value of at least 0.00007). In our logistic regression model P300 latency was more predictive of WMS-III impairment than MMSE >24. In patients whose WMS-III score is impaired ≤69, or borderline ≤79 (P at least =0.004), a P300 latency more prolonged than the norm (≥300 + 30 + Age) identifies these patients, whereas a MMSE >24 failed. With the ROC curve, we confirmed that P300 latency could accurately identify borderline/impaired memory.
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Affiliation(s)
- Eric R Braverman
- Path Medical Clinics and Research Foundation, New York, NY 10016, USA.
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Kim MS, Kang SS, Youn T, Kang DH, Kim JJ, Kwon JS. Neuropsychological correlates of P300 abnormalities in patients with schizophrenia and obsessive-compulsive disorder. Psychiatry Res 2003; 123:109-23. [PMID: 12850250 DOI: 10.1016/s0925-4927(03)00045-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The cognitive significance of P300 abnormalities in schizophrenia and obsessive-compulsive disorder (OCD) was investigated. P300 was measured by an auditory oddball paradigm, in which a series of standard tones (1000 Hz) and target tones (1500 Hz) were presented. The subject's task was to count the number of the presented target tones. Cognitive functions were evaluated by neuropsychological tests, which were chosen to be sensitive to frontal and temporal dysfunction. Twenty-two schizophrenic patients, 19 OCD patients and 21 healthy controls participated. Event-related potentials measured at 15 electrode sites, which consisted of five levels on the left-right dimension and three levels on the anterior-posterior dimension, were included in the statistical analysis. P300 amplitudes on all 15 electrode sites were significantly smaller in schizophrenic and OCD patients than in the controls. Schizophrenic patients performed poorly on almost all neuropsychological tests, while OCD patients showed impaired performance on the Rey-Osterrieth Complex Figure Test and on a controlled oral word association test. In schizophrenic patients, P300 amplitude was associated with performance on verbal memory and learning by the Luria-Nebraska Neuropsychological Battery, while for OCD patients, P300 amplitude was related to the Trail Making Test, Part B response time. These results indicate that schizophrenic patients have generalized cognitive impairments, which are substrated by a wide range of cortical dysfunctions. The major cognitive deficits observed in OCD patients were impairments of controlled attention and self-guided, flexible behavior, which are mediated by the fronto-striatal system. The neurophysiological mechanisms underlying P300 abnormalities observed in schizophrenic and OCD patients are discussed.
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Affiliation(s)
- Myung-Sun Kim
- Department of Psychiatry, Seoul National University College of Medicine and Clinical Research Institute, Seoul National University Hospital, Seoul, South Korea
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Ozgocmen S, Yoldas T, Kamanli A, Yildizhan H, Yigiter R, Ardicoglu O. Auditory P300 event related potentials and serotonin reuptake inhibitor treatment in patients with fibromyalgia. Ann Rheum Dis 2003; 62:551-5. [PMID: 12759293 PMCID: PMC1754563 DOI: 10.1136/ard.62.6.551] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The P300 components of auditory event related potentials (ERPs) are objective measures related to information and cognitive processing. OBJECTIVES To assess P300 ERPs in female patients with fibromyalgia (FM) in comparison with healthy age matched controls. To investigate the relationship between P300 potentials and pain threshold levels of patients, and subsequent effect of sertraline treatment on P300 potentials. METHODS P300 auditory ERPs were studied in 13 untreated female patients with FM and 10 healthy controls matched for age, sex, and education. Pain pressure thresholds and total myalgic scores (TMS) were assessed with an algometer. Patients were evaluated for clinical measures and P300 potentials (recorded from the vertex) at the first visit, and then in the fourth and eighth weeks of sertraline treatment. RESULTS Patients with FM had significantly lower P300 amplitudes, but not significantly different P300 latencies, than controls at entry. P300 latencies in patients correlated negatively with TMS (r(s)=-0.79, p<0.01) and P300 amplitudes correlated significantly with TMS (r(s)=0.53, p<0.05). Anxiety and depression scores did not correlate significantly with P300 latencies or amplitudes at the study entry. P300 auditory ERPs had increased amplitudes that had reached nearly the same levels as those of the controls at the eighth week without any significant change in their latencies. CONCLUSION The results show reduced P300 amplitudes in patients with FM. Further studies assessing the relationship between P300 ERPs and neuropsychiatric tests are required for better clarification of the clinical relevance of P300 potentials in FM.
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Affiliation(s)
- S Ozgocmen
- Department of Physical Medicine and Rehabilitation, Division of Rheumatology, Firat University, Faculty of Medicine, 23119 Elazig Turkey.
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Anderer P, Semlitsch HV, Saletu B, Saletu-Zyhlarz G, Gruber D, Metka M, Huber J, Gräser T, Oettel M. Effects of hormone replacement therapy on perceptual and cognitive event-related potentials in menopausal insomnia. Psychoneuroendocrinology 2003; 28:419-45. [PMID: 12573306 DOI: 10.1016/s0306-4530(02)00032-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The influence of a combined estrogen-progestin regimen (Climodien, Lafamme) on auditory event-related potentials (ERPs) was investigated in a double-blind, placebo-controlled, comparative, randomized 3-arm trial phase (Climodien 2/3=estradiol valerate 2 mg+the progestin dienogest 3 mg, EV=estradiol valerate 2 mg, and placebo), followed by an open-label phase in which all patients received Climodien 2/2 (estradiol valerate 2 mg+dienogest 2 mg). Both the double-blind and the open-label phase lasted 2 months. ERPs were recorded from 19 EEG leads in a two-tone odd-ball paradigm in 49 patients aged between 46 and 67 yr with the diagnosis of insomnia (G 47.0) related to postmenopausal syndrome (N 95.1). Climodien reduced standard N1 and target P300 latencies as compared to placebo, while EV did not affect N1 latency but similarly reduced P300 latency. Climodien increased N1, P2 and P300 amplitudes dose-dependently, predominantly at frontal leads. Estrogen alone had only minor effects on ERP amplitudes. The shortening of standard N1 latency and enhancement of N1 and P2 amplitudes indicates a positive effect of Climodien on perceptual processing, most likely due to vigilance improvements also observed in EEG mapping. Concerning target P300, it seems that estradiol is responsible for the improvement in stimulus evaluation time, as reflected by the shortening of the peak latency, while dienogest seems to account for the improvement in cognitive information processing capacity, whereby 3 mg induced a more pronounced augmentation of P300 amplitudes than 2 mg. Based on the spatial distribution of this increase, it can be speculated that Climodien mainly affects the more frontally distributed P3a subcomponent, which is associated with attention and orientation. Furthermore, the observed changes in ERP-components are consistent with recent studies showing significant positive effects of hormone replacement therapy on cholinergic functions. Thus, Climodien seems to be of interest in preventing cognitive decline and treating cognitive disorders in postmenopausal women. Indeed, there is increasing evidence of beneficial effects of estrogen in dementia. Our present findings suggest that the estrogen effects may be augmented by dienogest.
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Affiliation(s)
- Peter Anderer
- Department of Psychiatry, University of Vienna, Währinger Gürtel 18-20, Austria.
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Iscan A, Ozkul Y, Unal D, Soran M, Kati M, Bozlar S, Karazeybek AH. Abnormalities in event-related potential and brainstem auditory evoked response in children with nocturnal enuresis. Brain Dev 2002; 24:681-7. [PMID: 12427514 DOI: 10.1016/s0387-7604(02)00077-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
UNLABELLED To evaluate central nervous system functioning involvement in nocturnal enuresis, P300 and N200 event-related brain potentials and brainstem auditory-evoked potentials (BAER) were assessed in a group of 35 enuretic boys aged 7-9 years. The measurements of enuretic group were compared to those of age and sex matched non-enuretics. P300 latency in the enuretic group was significantly longer than in non-enuretic group (420 ms at parietal scalp (Pz), 414 ms at central scalp (Cz) versus 386 ms at Pz, 376 ms at Cz; P < 0.01 and P < 0.01, respectively). Both enuretic and non-enuretic subjects were divided into three subgroups his age. There was no significant difference in terms of both P300 amplitude and N200 latency and N200 amplitude between non-enuretic age subgroups. But, P300 latency over central scalp in 8 years old non-enuretic subgroup was significantly longer than in 9 years old non-enuretic subgroup (P < 0.01). No significant difference was found in latency and amplitude of P300 and N200 latency between enuretic subgroups. However, N200 amplitude at Cz in 8 years old enuretic subgroup was significantly lower than both in 7 years old enuretic subgroup and in 9 years old enuretic subgroup (P < 0.01 and P < 0.01, respectively). There were significant topographical differences in latency and amplitude of P300 and in N200 latency in enuretic age subgroups, only. There was no significant difference in interpeak latencies I-III, I-V and III-V and wave latencies I, III and V of BAERs between enuretic group and non-enuretic subgroup. Longer interpeak and wave latencies of BAERs were found both in 8 years old enuretic subgroup and 8 years old non-enuretic subgroup. CONCLUSION Longer P300 latency in primer enuretics compare to non-enuretics is an evidence of a maturational delay of central nervous system functioning.
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Affiliation(s)
- Akin Iscan
- Department of Child Neurology, University of Dokuz Eylul, Mehmet Efe Sok Ozcelik B Sitesi 51/13 Balcova, Izmir, Turkey.
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