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Living with Metastatic Cancer: A Roadmap for Future Research. Cancers (Basel) 2020; 12:cancers12123684. [PMID: 33302472 PMCID: PMC7763639 DOI: 10.3390/cancers12123684] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/03/2020] [Accepted: 12/05/2020] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Although people with metastatic cancer are living longer with their disease, they are faced with challenges that can interfere with their quality of life. These challenges include worsening disease, survival time, symptoms, distress, and financial problems. The aim of this review paper is to describe a framework to guide future efforts to address these challenges. The framework includes the risk factors (predisposing factors), triggers (precipitating factors), and responses (perpetuating factors) that contribute to the onset and maintenance of problems in living with metastatic cancer. We conclude by suggesting areas for future work to prevent problems, manage triggers, and reduce unhelpful responses. Abstract Living with metastatic cancer, or metavivorship, differs from cancer survivorship and has changed as novel treatments have increased survival time. The purpose of this narrative review is to describe factors that impact challenges in metavivorship within a conceptual framework to guide future research. This review focuses on the specific metavivorship outcomes of progressive disease, survival time, symptoms, distress, financial toxicity, and quality of life. We describe the predisposing, precipitating, and perpetuating (3P) model of metavivorship. Understanding the biological, psychological, and social 3P factors that contribute to the development and maintenance of challenges in metavivorship provides a roadmap for future research. Implications of this model include prevention by targeting predisposing factors, management of precipitating factors after onset of metastatic disease, and treatment of perpetuating factors to reduce symptoms and improve quality of life during the chronic phase of metavivorship. This can be accomplished through biopsychosocial screening efforts, monitoring of patient-reported outcomes, education and communication interventions, interdisciplinary symptom management, advance care planning, and behavioral interventions to cultivate psychological resilience.
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Psychological characteristics of early remitters in patients with panic disorder. Psychiatry Res 2012; 197:237-41. [PMID: 22370156 DOI: 10.1016/j.psychres.2011.11.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 10/31/2011] [Accepted: 11/02/2011] [Indexed: 01/05/2023]
Abstract
We aimed to examine whether anxiety sensitivity and agoraphobic fear could affect the time taken to remission after 24 weeks of open-label escitalopram treatment of patients with panic disorder (PD). We recruited 158 patients, and 101 patients completed the study. Clinical severity and psychological characteristics were assessed at baseline and 4, 12, and 24 weeks after the treatment, using the Clinical Global Impression-Severity (CGI-S), the Hamilton Rating Scales for Anxiety and Depression, the Anxiety Sensitivity Index-Revised (ASI-R), the Albany Panic and Phobia Questionnaire (APPQ), and the Panic Disorder Severity Scale (PDSS). Remission was defined as the absence of full panic attacks and PDSS scores of 7 or less. Completing patients were stratified according to the time taken to remit: early (n=20) and late (n=58) remission and non-remission groups (n=23). There were no significant differences among the three groups at baseline on the CGI-S and the PDSS mean scores. However, early remitters had significantly lower scores than late remitters and non-remitters on the ASI-R and APPQ. In conclusion, anxiety sensitivity and agoraphobic fear can affect the time to remission after pharmacotherapy, and clinicians should consider the psychological characteristics of PD patients in order to achieve an optimal response to pharmacotherapy.
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Perna G, di Pasquale D, Grassi M, Vanni G, Bellodi L, Caldirola D. Temperament, character and anxiety sensitivity in panic disorder: a high-risk study. Psychopathology 2012; 45:300-4. [PMID: 22797556 DOI: 10.1159/000335072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Accepted: 11/15/2011] [Indexed: 11/19/2022]
Abstract
BACKGROUND Adult patients with panic disorder (PD) show high levels of harm avoidance and anxiety sensitivity. Peculiar temperament profiles and high anxiety sensitivity have been proposed as developmental risk factors for PD in adult age. Since familial-genetic influences play a role both in PD and in anxiety sensitivity and temperament profiles, this study aims to investigate the possible association between family history of PD and peculiar temperament-character profiles or high anxiety sensitivity in offspring of patients with PD. SAMPLING AND METHODS Thirty-four children of patients with PD with/without agoraphobia and 30 children of healthy subjects were compared. Temperament and character dimensions and anxiety sensitivity levels of children were obtained by the Junior Temperament and Character Inventory and the Childhood Anxiety Sensitivity Index. RESULTS Children of patients with PD and children of healthy subjects differed neither in temperament and character dimensions nor in anxiety sensitivity levels. CONCLUSIONS Our results show that family history of PD is not associated with peculiar temperament and character profiles or high anxiety sensitivity in children, suggesting that these factors may not be early expressions of familial vulnerability to PD. Since the sample is small and the study has a cross-sectional design, longitudinal studies in larger samples are warranted to confirm these findings and to clarify the role of anxiety sensitivity and temperament-character dimensions in the development of PD.
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Affiliation(s)
- Giampaolo Perna
- Department of Clinical Neurosciences, Villa San Benedetto Hospital, Hermanas Hospitalarias, Albese con Cassano, Italy.
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Kaplan JS, Arnkoff DB, Glass CR, Tinsley R, Geraci M, Hernandez E, Luckenbaugh D, Drevets WC, Carlson PJ. Avoidant coping in panic disorder: a yohimbine biological challenge study. ANXIETY STRESS AND COPING 2011; 25:425-42. [PMID: 21864204 DOI: 10.1080/10615806.2011.609587] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Few studies have addressed whether the use of avoidance-oriented coping strategies is related to the development of panic in patients with panic disorder(PD). Self-report, clinician-rated, and physiological data were collected from 42 individuals who participated in a yohimbine biological challenge study, performed under double-blind, placebo-controlled conditions. Participants included 20 healthy controls and 22 currently symptomatic patients who met DSM-IV-TR diagnostic criteria for PD. Consistent with prediction, patients with PD who had higher perceived efficacy of avoidance-oriented strategies in reducing anxiety-related thoughts reported increased severity in panic symptoms during the yohimbine challenge condition as compared to the placebo. Further, patients with PD who had more fear of cognitive dyscontrol, cardiovascular symptoms, and publicly observable anxiety also reported increased severity in panic symptoms during the challenge. Healthy controls who had more fear of cardiovascular symptoms similarly reported increased severity in panic symptoms during the challenge. No effects were found for heart rate response to the challenge agent. These results provide support for the role of avoidance-oriented coping strategies and fear of anxiety-related symptoms as risk and maintenance factors in the development of panic symptoms, particularly within a biological challenge model.
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Affiliation(s)
- Johanna S Kaplan
- Mood and Anxiety Disorders Program, National Institute of Mental Health, NIH, DHHS, Bethesda, MD, USA.
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van Santen A, Vreeburg SA, Van der Does AJW, Spinhoven P, Zitman FG, Penninx BWJH. Psychological traits and the cortisol awakening response: results from the Netherlands Study of Depression and Anxiety. Psychoneuroendocrinology 2011; 36:240-8. [PMID: 20724080 DOI: 10.1016/j.psyneuen.2010.07.014] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Revised: 06/13/2010] [Accepted: 07/15/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND Hypothalamus-Pituitary-Adrenal (HPA) axis dysregulation is often seen in major depression, and is thought to represent a trait vulnerability - rather than merely an illness marker - for depressive disorder and possibly anxiety disorder. Vulnerability traits associated with stress-related disorders might reflect increased sensitivity for the development of psychopathology through an association with HPA axis activity. Few studies have examined the association between psychological trait factors and the cortisol awakening response, with inconsistent results. The present study examined the relationship between multiple psychological trait factors and the cortisol awakening curve, including both the dynamic of the CAR and overall cortisol awakening levels, in a sample of persons without psychopathology, hypothesizing that persons scoring high on vulnerability traits demonstrate an elevated cortisol awakening curve. METHODS From 2981 participants of the Netherlands Study of Depression and Anxiety (NESDA), baseline data from 381 controls (aged 18-65) without previous, current and parental depression and anxiety disorders were analyzed. Psychological measures included the Big Five personality traits (neuroticism, extraversion, openness to experience, conscientiousness, and agreeableness) measured using the NEO-FFI, anxiety sensitivity assessed by the Anxiety Sensitivity Index, cognitive reactivity to sadness (hopelessness, acceptance/coping, aggression, control/perfectionism, risk aversion, and rumination) as measured by the LEIDS-R questionnaire, and mastery, assessed using the Pearlin and Schooler Mastery scale. Salivary cortisol levels were measured at awakening, and 30, 45, and 60 min afterwards. RESULTS In adjusted analyses, high scores of hopelessness reactivity (β=.13, p=.02) were consistently associated with a higher cortisol awakening response. In addition, although inconsistent across analyses, persons scoring higher on extraversion, control/perfectionism reactivity, and mastery tended to show a slightly flatter CAR. No significant associations were found for neuroticism, openness to experience, agreeableness, conscientiousness, anxiety sensitivity, and acceptance/coping, aggression, or risk aversion reactivity. CONCLUSION Of various psychological traits, only hopelessness reactivity, a trait that has been associated with depression and suicidality, is consistently associated with HPA axis dysregulation. Hopelessness reactivity may represent a predisposing vulnerability for the development of a depressive or anxiety disorder, possibly in part mediated by HPA axis activity.
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Affiliation(s)
- Aafke van Santen
- VU University, Faculty of Psychology and Education, Amsterdam, The Netherlands
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Telch MJ, Smits JAJ, Brown M, Dement M, Powers MB, Lee H, Pai A. Effects of threat context and cardiac sensitivity on fear responding to a 35% CO2 challenge: a test of the context-sensitivity panic vulnerability model. J Behav Ther Exp Psychiatry 2010; 41:365-72. [PMID: 20430368 DOI: 10.1016/j.jbtep.2010.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 03/23/2010] [Accepted: 03/23/2010] [Indexed: 11/25/2022]
Abstract
The present study tested several predictions of a context-sensitivity panic vulnerability model emphasizing the interaction between threat context and threat sensitivities. Participants without a history of panic (N=47) completed both global and domain-specific panic relevant sensitivity measures and were then randomized to undergo a 35% CO2 inhalation challenge in the presence or absence of a cardiac defibrillator (threat context). As predicted by the model, cardiac sensitivity (but not trait anxiety or anxiety sensitivity) potentiated the effects of the presence of the defibrillator on CO2 fear responding. Moreover, as predicted by the model, the observed potentiation effects of cardiac sensitivity on CO2 fear responding were mediated by participants' threat appraisals connected to the presence of the defibrillator. Theoretical and clinical implications are discussed.
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Affiliation(s)
- Michael J Telch
- Department of Psychology, Laboratory for the Study of Anxiety Disorders, The University of Texas at Austin, 1 University Station, Mail Code A8000, Austin, TX 78712, USA.
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Richey JA, Schmidt NB, Hofmann SG, Timpano KR. Temporal and structural dynamics of anxiety sensitivity in predicting fearful responding to a 35% CO2 challenge. J Anxiety Disord 2010; 24:423-32. [PMID: 20307952 DOI: 10.1016/j.janxdis.2010.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2009] [Revised: 02/08/2010] [Accepted: 02/15/2010] [Indexed: 11/19/2022]
Abstract
The current study assessed the incremental prediction of anxiety sensitivity (AS) in both taxonic (categorical) and dimensional representations at various time points before and after a single vital capacity inhalation of a 35% CO(2), 65% balanced O(2) gas mixture. Participants were 128 young adults screened for a history of panic attacks. By controlling for traitwise factors including state anxiety and testing both categorical and continuous conceptualizations of the AS construct at various timepoints, the present report was able to evaluate the temporal and structural dynamics of AS in relation to fearful responding to the challenge. Relevant variables were evaluated in a hierarchical linear regression framework, and it was found that a continuous conceptualization of AS provided incremental predictive validity above and beyond trait anxiety immediately post-challenge, while a categorical representation of AS was equivalent to a continuous model of AS at post-challenge but outperformed a continuous model at follow-up. These data provide basic but important evidence suggesting that AS is uniquely associated with anxious responding to a 35% CO(2) challenge, and that categorical representations of AS should be considered in biological challenge studies.
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Affiliation(s)
- J Anthony Richey
- Neurodevelopmental Disorders Research Center, University of North Carolina, Chapel Hill, NC 27599, USA.
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Fava L, Morton J. Causal modeling of panic disorder theories. Clin Psychol Rev 2009; 29:623-37. [DOI: 10.1016/j.cpr.2009.08.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 08/03/2009] [Accepted: 08/05/2009] [Indexed: 10/20/2022]
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Abstract
PURPOSE OF REVIEW To summarize recent findings on the psychological impact of occupational asthma, on the basis of a review of medical and psychological literature published between 1998 and 2008. For the purposes of this review, 'psychological impacts' are defined as the experience of psychological stress or distress, which refers to the experience of negative emotions (e.g., anxiety and sadness/depression). When severe and chronic, psychological distress may reach clinical levels and is referred to as a 'psychiatric disorder', which is a clinical diagnosis based on established diagnostic criteria. RECENT FINDINGS Only one original article assessing psychological impacts has been published in the past 10 years (in 2007). Levels of psychological distress (i.e., depression, anxiety, and cognitive dysfunction) were all in the clinical range, and rates of anxiety disorders and dysthymia (a chronic form of depression) affected approximately 35 and 23% of patients, respectively. SUMMARY The paucity of available literature indicates that the study of psychological factors associated with occupational asthma is still in its infancy. Though preliminary and in need of replication, the only published study to date suggests that patients with occupational asthma may be highly anxious and many are chronically depressed, a finding that is consistent with previous studies with nonoccupational asthmatics. The established link between psychological factors (e.g., depression and anxiety) and nonoccupational asthma suggests that future studies are desperately needed to more comprehensively assess the scope and severity of the psychological burden of this disease.
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Smits JAJ, Meuret AE, Zvolensky MJ, Rosenfield D, Seidel A. The effects of acute exercise on CO(2) challenge reactivity. J Psychiatr Res 2009; 43:446-54. [PMID: 18603261 DOI: 10.1016/j.jpsychires.2008.05.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Revised: 05/22/2008] [Accepted: 05/27/2008] [Indexed: 11/30/2022]
Abstract
The present study examined the effects of acute exercise on anxiogenic responding to 65% O(2)/35% CO(2) challenge. Participants (N=92) were 51 female and 41 male volunteers ranging in age from 17 to 24 (M=19.43, SD=1.31). Participants had no history of panic attacks and were randomized to moderate treadmill exercise (i.e., 70% of HR(max)) or quiet rest prior to taking a single vital capacity inhalation of 35% CO(2)/65% O(2). Gender and measures of negative affectivity and anxiety sensitivity were included in the design as control variables. Results indicated participants who exercised prior to challenge showed significantly reduced reactivity compared to their counterparts who rested prior to challenge. Importantly, the effect sizes for the advantage of exercise over rest remained in the medium to large range (i.e., partial eta(2)>.07) after controlling for the effects of gender, anxiety sensitivity, and negative affectivity. These findings are the first to demonstrate that the anti-panic effects of exercise are unique from, and cannot be better explained by, established risk factors of CO(2) challenge reactivity.
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Affiliation(s)
- Jasper A J Smits
- Department of Psychology, Southern Methodist University, Dallas, TX 75275, USA.
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Schmidt NB, Zvolensky MJ. Anxiety sensitivity and CO2 challenge reactivity as unique and interactive prospective predictors of anxiety pathology. Depress Anxiety 2008; 24:527-36. [PMID: 17136755 DOI: 10.1002/da.20267] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Emerging evidence suggests that anxiety sensitivity (AS) and CO(2)-induced fear reactivity are associated with panic attacks and anxiety disorders. However, evidence regarding the unique and potentially synergistic effects of these variables is currently lacking. Our primary aims in this study were to determine whether AS and CO(2)-induced fear reactivity are unique and potentially interactive vulnerability factors involved in the pathogenesis of panic attacks and anxiety psychopathology. A large nonclinical sample of young adults (N=404) was prospectively followed over approximately 2 years. AS (i.e., 16-item Anxiety Sensitivity Index total scores) and biological challenge reactivity [i.e., fearful responding to pre- and postchallenge changes in subjective units of distress (SUDS) to a 20-s 20% CO(2) challenge] at study entry served as the primary predictor variables. Consistent with expectation, AS and challenge reactivity correlated only moderately with one another. Challenge reactivity was uniquely associated with the development of spontaneous panic attacks, whereas AS was uniquely associated with anxiety disorder diagnoses, including panic disorder. Moreover, the combination of both risk factors predicted spontaneous panic attacks beyond the effects of either risk factor individually. These data provide novel evidence for the unique and combined effects of AS and CO(2)-induced fear reactivity as risk factors in the development of anxiety and its disorders.
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Affiliation(s)
- Norman B Schmidt
- Department of Psychology, Florida State University, Tallahassee, Florida 32306-1270, USA.
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Kumar A, Goyal R. Possible GABAergic Modulation in the Protective Effect of Zolpidem in Acute Hypoxic Stress-induced Behavior Alterations and Oxidative Damage. Neurochem Res 2007; 33:370-7. [PMID: 17768679 DOI: 10.1007/s11064-007-9431-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2007] [Accepted: 06/29/2007] [Indexed: 12/16/2022]
Abstract
Hypoxia is an environmental stressor that is known to elicit alterations in both the autonomic nervous system and endocrine functions. The free radical or oxidative stress theory holds that oxidative reactions are mainly underlying neurodegenerative disorders. In fact among complex metabolic reactions occurring during hypoxia, many could be related to the formation of oxygen derived free radicals, causing a wide spectrum of cell damage. In present study, we investigated possible involvement of GABAergic mechanism in the protective effect of zolpidem against acute hypoxia-induced behavioral modification and biochemical alterations in mice. Mice were subjected to acute hypoxic stress for a period of 2 h. Acute hypoxic stress for 2 h caused significant impairment in locomotor activity, anxiety-like behavior, and antinocioceptive effect in mice. Biochemical analysis revealed a significant increased malondialdehyde, nitrite concentrations and depleted reduced glutathione and catalase levels. Pretreatment with zolpidem (5 and 10 mg/kg, i.p.) significantly improved locomotor activity, anti-anxiety effect, reduced tail flick latency and attenuated oxidative damage (reduced malondialdehyde, nitrite concentration, and restoration of reduced glutathione and catalase levels) as compared to stressed control (hypoxia) (P < 0.05). Besides, protective effect of zolpidem (5 mg/kg) was blocked significantly by picrotoxin (1.0 mg/kg) or flumazenil (2 mg/kg) and potentiated by muscimol (0.05 mg/kg) in hypoxic animals (P < 0.05). These effects were significant as compared to zolpidem (5 mg/kg) per se (P < 0.05). Present study suggest that the possible involvement of GABAergic modulation in the protective effect of zolpidem against hypoxic stress.
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Affiliation(s)
- Anil Kumar
- Pharmacology Division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India.
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Schmidt NB, Zvolensky MJ, Maner JK. Anxiety sensitivity: prospective prediction of panic attacks and Axis I pathology. J Psychiatr Res 2006; 40:691-9. [PMID: 16956622 DOI: 10.1016/j.jpsychires.2006.07.009] [Citation(s) in RCA: 348] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Revised: 07/07/2006] [Accepted: 07/18/2006] [Indexed: 11/30/2022]
Abstract
Emerging evidence suggests that anxiety sensitivity (AS) predicts subsequent development of anxiety symptoms and panic attacks. However, evidence regarding whether AS serves as a premorbid risk factor for the development of clinical syndromes is lacking. The primary aim of the present study was to determine whether AS acts as a vulnerability factor in the pathogenesis of psychiatric diagnoses. A large nonclinical sample of young adults (N=404) was prospectively followed over two years. The Anxiety Sensitivity Index (ASI: Reiss S, Peterson RA, Gursky DM, McNally RJ. Anxiety sensitivity, anxiety frequency, and the prediction of fearfulness. Behaviour Research and Therapy 1986; 24: 1-8.) and trait anxiety served as predictors. Consistent with prior reports, AS predicted the development of spontaneous panic attacks in those with no history of panic. Importantly, AS was found to predict the incidence of anxiety disorder diagnoses and overall Axis I diagnoses in those with no history of Axis I diagnoses at study entry. These are the first data to provide strong prospective evidence for AS as a risk factor in the development of anxiety disorders.
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Affiliation(s)
- Norman B Schmidt
- Department of Psychology, Florida State University, Tallahassee, 32306, USA.
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Starcevic V, Berle D. Cognitive specificity of anxiety disorders: a review of selected key constructs. Depress Anxiety 2006; 23:51-61. [PMID: 16402368 DOI: 10.1002/da.20145] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Cognitive models of anxiety disorders propose that certain cognitive constructs, that is, underlying beliefs and cognitive processes, may be specific for particular disorders. In this article, we review the specificity of four representative cognitive constructs-anxiety sensitivity, pathological worry, intolerance of uncertainty, and thought-action fusion-for particular disorders. Conceptual overlap, inconsistent definitions, and insufficient consideration of the components of these constructs are limitations of the existing literature. We suggest that the constructs are unlikely to be pathognomonic for any given disorder or to occur in isolation. Rather, the association of each cognitive construct is evident, to varying degrees, with different disorders. Relative to other disorders, anxiety sensitivity is to a certain extent specific for panic disorder, as are pathological worry for generalized anxiety disorder, intolerance of uncertainty for generalized anxiety disorder and obsessive-compulsive disorder, and thought-action fusion for obsessive-compulsive disorder. We discuss the implications of these findings for diagnostic systems and treatment, and suggest areas for further research.
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Affiliation(s)
- Vladan Starcevic
- University of Sydney and Nepean Hospital, Penrith, New South Wales, Australia.
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