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Jang YJ, Yassin W, Mesholam-Gately R, Gershon ES, Keedy S, Pearlson GG, Tamminga CA, McDowell J, Parker DA, Sauer K, Keshavan MS. Characterizing the Relationship between Personality Dimensions and Psychosis-Specific Clinical Characteristics. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.06.24308169. [PMID: 38883764 PMCID: PMC11178011 DOI: 10.1101/2024.06.06.24308169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Background Past studies associating personality with psychosis have been limited by small nonclinical samples and a focus on general symptom burden. This study uses a large clinical sample to examine personality's relationship with psychosis-specific features and compare personality dimensions across clinically and neurobiologically defined categories of psychoses. Methods A total of 1352 participants with schizophrenia, schizoaffective disorder, and bipolar with psychosis, as well as 623 healthy controls (HC), drawn from the Bipolar-Schizophrenia Network for Intermediate Phenotypes (BSNIP-2) study, were included. Three biomarker-derived biotypes were used to separately categorize the probands. Mean personality factors (openness, conscientiousness, extraversion, agreeableness, and neuroticism) were compared between HC and proband subgroups using independent sample t-tests. A robust linear regression was utilized to determine personality differences across biotypes and diagnostic subgroups. Associations between personality factors and cognition were determined through Pearson's correlation. A canonical correlation was run between the personality factors and general functioning, positive symptoms, and negative symptoms to delineate the relationship between personality and clinical outcomes of psychosis. Results There were significant personality differences between the proband and HC groups across all five personality factors. Overall, the probands had higher neuroticism and lower extraversion, agreeableness, conscientiousness, and openness. Openness showed the greatest difference across the diagnostic subgroups and biotypes, and greatest correlation with cognition. Openness, agreeableness, and extraversion had the strongest associations with symptom severity. Conclusions Individuals with psychosis have different personality profiles compared to HC. In particular, openness may be relevant in distinguishing psychosis-specific phenotypes and experiences, and associated with biological underpinnings of psychosis, including cognition. Further studies should identify potential causal factors and mediators of this relationship.
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Scholte-Stalenhoef AN, Boyette LL, Begemann M, Schirmbeck F, Hasson-Ohayon I, Cahn W, de Haan L, Pijnenborg GHM. Response to psychotic experiences: Impact of personality traits on perceived levels of distress. Schizophr Res 2024; 267:282-290. [PMID: 38583258 DOI: 10.1016/j.schres.2024.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 03/18/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND This study examined the influence of personality traits on (subclinical) positive symptom distress in patients with a psychotic disorder, their unaffected siblings and healthy controls. METHODS Data were obtained from the Genetic Risk and Outcome of Psychosis study (GROUP), a Dutch longitudinal multicenter cohort study. Data from 140 patients, 216 unaffected siblings and 102 healthy controls was available for baseline levels of Five Factor Model personality traits and frequency and distress due to psychotic experiences three years later, assessed with the Community Assessment of Psychic Experience questionnaire. Main effects of all five personality traits on symptom distress were investigated as well as moderating effects of Neuroticism, Extraversion and Openness on positive symptom frequency and positive symptom distress. Age, gender, symptom frequency and IQ were controlled for. RESULTS In both patients and siblings, the observed main effects of Neuroticism and Openness on (subclinical) positive symptom distress three years later either lost significance or had a very small effect size when controlling for covariates, mainly due to the correction for the effect of positive symptoms on personality traits at baseline. In both groups, levels of Openness at baseline moderated the association between positive symptom frequency and positive symptom distress three years later, in the direction that higher levels of Openness were associated with weaker associations between positive symptom frequency and - distress, even when covariates were controlled for. DISCUSSION The level of Openness to Experiences influences the perceived distress from (subclinical) positive symptoms in both patients and siblings.
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Affiliation(s)
- Anne Neeltje Scholte-Stalenhoef
- Department of Psychiatry, University Medical Center Groningen, Groningen, the Netherlands; University of Groningen, Groningen, the Netherlands.
| | - Lindy-Lou Boyette
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, the Netherlands
| | - Marieke Begemann
- Department of Psychiatry, University Medical Center Groningen, Groningen, the Netherlands; University of Groningen, Groningen, the Netherlands
| | - Frederike Schirmbeck
- Department of Psychiatry, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | | | - Wiepke Cahn
- Department of Psychiatry, University Medical Center Utrecht, Utrecht, the Netherlands; Altrecht Science, Altrecht Mental Health Institute, Utrecht, Utrecht, the Netherlands
| | - Lieuwe de Haan
- Department of Psychiatry, Amsterdam University Medical Center, Amsterdam, the Netherlands; Arkin, Institute for Mental Health, Amsterdam, the Netherlands
| | - Gerdina Hendrika Maria Pijnenborg
- Department of Clinical and Neurodevelopmental Neuropsychology, the Netherlands; Department of Psychotic Disorders, GGZ Drenthe, Assen, the Netherlands
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Jayasinghe A, Wrobel A, Filia K, Byrne LK, Melvin G, Murrihy S, Moller C, Berk L, Berk M, Cotton S. Distress, burden, and wellbeing in siblings of people with mental illness: a mixed studies systematic review and meta-analysis. Psychol Med 2023; 53:6945-6964. [PMID: 37489510 PMCID: PMC10951414 DOI: 10.1017/s0033291723001733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 05/20/2023] [Accepted: 05/30/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Family members of people with mental illness (MI) may experience a host of psychological adversities such as increased stress, burden, and reduced wellbeing. However, relatively little is known about siblings. This study aimed to characterise the experience of distress (viz. depressive and anxiety symptoms), burden, and wellbeing in siblings of people with MI. METHODS Studies reporting on quantitative measures of depression, anxiety, burden, or wellbeing in siblings; and/or qualitative findings on siblings' experience were eligible. The literature search was conducted up until 20th October 2022. RESULTS Sixty-two studies comprising data from 3744 siblings were included. The pooled mean percentage of depressive symptoms fell in the mild range at 15.71 (k = 28, N = 2187, 95% CI 12.99-18.43) and anxiety symptoms fell in the minimal range at 22.45 (k = 16, N = 1122, 95% CI 17.09-27.80). Moderator analyses indicate that siblings of people with a schizophrenia spectrum disorder experience greater depressive symptoms than siblings of people with other types of MI (β = -16.38, p < 0.001). Qualitative findings suggest that individuals may be particularly vulnerable during their siblings' illness onset and times of relapse. Limited communication, confusion about MI, and the need to compensate may contribute to siblings' distress and/or burden. Siblings' experience of wellbeing and caregiving were closely related. CONCLUSION This review highlights the complex psychological experience of siblings and the need for greater research and clinical support for this important yet often overlooked cohort.
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Affiliation(s)
- Anuradhi Jayasinghe
- School of Psychology, Deakin University, Geelong, Victoria, Australia
- Orygen, Parkville, Victoria, Australia
| | - Anna Wrobel
- Orygen, Parkville, Victoria, Australia
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Kate Filia
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Linda K. Byrne
- School of Psychology, Deakin University, Geelong, Victoria, Australia
| | - Glenn Melvin
- School of Psychology, Deakin University, Geelong, Victoria, Australia
- Centre for Social and Early Emotional Development, Deakin University, Geelong, Victoria, Australia
- Centre for Educational Development Appraisal and Research, University of Warwick, Coventry, UK
| | - Sean Murrihy
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Carl Moller
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia
| | - Lesley Berk
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, Victoria, Australia
- Melbourne School of Population and Global Health, University of Melbourne, Parkville, Victoria, Australia
| | - Michael Berk
- Orygen, Parkville, Victoria, Australia
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, Victoria, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia
- Florey Institute for Neuroscience and Mental Health, University of Melbourne, Melbourne, Victoria, Australia
- Department of Psychiatry, University of Melbourne, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Sue Cotton
- Orygen, Parkville, Victoria, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, Victoria, Australia
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Lupattelli A, Trinh NTH, Nordeng H. Association of maternal personality traits with medication use during pregnancy to appraise unmeasured confounding in long-term pharmacoepidemiological safety studies. Front Pharmacol 2023; 14:1160168. [PMID: 37256227 PMCID: PMC10225644 DOI: 10.3389/fphar.2023.1160168] [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: 02/06/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
Maternal personality is a possible confounder on the association between prenatal medication exposure and long-term developmental outcomes in offspring, but it is often unmeasured. This study aimed to (i) estimate the association between five maternal personality traits and prenatal use of acetaminophen (including extended use), opioid analgesics, antidepressants, benzodiazepines/z-hypnotics, and antipsychotics; (ii) evaluate, using an applied example, whether unmeasured confounding by maternal neuroticism would make the association between prenatal antidepressant-child ADHD null, using the E-value framework. We used data from 8,879 pregnant women and recent mothers who participated in the Multinational Medication Use in Pregnancy Study, a web-based cross-sectional study performed within the period from 1-Oct-2011 to 29-Feb-2012 in Europe, North America and Australia. Medication use in pregnancy was self-reported by the women. Personality was assessed with the Big Five Inventory, capturing the dimensions of neuroticism, extraversion, openness, agreeableness, and conscientiousness. Adjusted logistic regression analyses were conducted for each trait-medication pair, using the survey weighting. There was a strong association between having high neuroticism and prenatal use of antidepressants (Odds Ratio (OR): 5.63, 95% Confidence Interval (CI): 3.96-8.01), benzodiazepines/z-hypnotics (OR: 6.66, 95% CI: 4.05-10.95), and analgesic opioids (OR: 2.24, 95% CI: 1.41-3.56), but not with antipsychotics. Among women with mental illness, this association attenuated for benzodiazepines/z-hypnotics, but decreased to the null for antidepressants. High neuroticism (OR: 1.31, 95% CI: 1.08-1.59) and high openness (OR: 0.77, 95% CI: 0.64-0.93) were associated with extended use of acetaminophen. The E-value for the Hazard Ratio 1.93 in the applied example was 3.27. If the example study was conducted using a population comparison group, high maternal neuroticism could have explained away the association antidepressant-ADHD. Because the example study included only women with a mental illness, this risk of bias was assessed as minimal. Various personality dispositions in the mother are associated, with a different degree, to prenatal use of medication. The strength of these association can aid researchers in evaluating the influence of uncontrolled confounding by maternal personality in long-term safety studies in pregnancy, using the E-value. This assessment should always be performed in addition to a rigorous study design using approaches to triangulate the evidence.
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Affiliation(s)
- Angela Lupattelli
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Nhung T. H. Trinh
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Hedvig Nordeng
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway
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Yaghoubi B, Nemati R, Agin K, Beigi Dehaghi AM, Gazmeh M, Rezaei F, Amirbandi E, Farhadi A. Mediating role of coping styles on the relationship between personality types and mental disorders in cardiovascular patients: a cross-sectional study in Iran. BMC Psychiatry 2023; 23:236. [PMID: 37029344 PMCID: PMC10080519 DOI: 10.1186/s12888-023-04742-8] [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: 11/30/2022] [Accepted: 04/03/2023] [Indexed: 04/09/2023] Open
Abstract
BACKGROUND Many mental problems lead to the occurrence of physical diseases, causing worse consequences of diseases. Despite many studies in the field of personality types and types of mental disorders, this relationship and the mediating role of coping styles in cardiovascular patients are still not well known. Therefore, the present study was conducted to investigate the mediating role of coping styles in the relationship between personality types and mental disorders in cardiovascular patients. METHOD The present study is a cross-sectional study that was conducted on 114 cardiovascular patients at the heart center in Bushehr, Iran. The sampling method is simple random sampling. Demographic information form, MCMI-III questionnaire, NEO-FFI questionnaire, and Lazarus and Folkman coping styles questionnaire were used to collect data. Data were analyzed using SPSS 22 and Amos 24 software. Descriptive statistics methods (mean, variance and percentage), Pearson correlation, and structural equation model (SEM) were applied to analyze the data. RESULTS The findings showed that the two variables of personality types and problem-oriented explain 15.2% of the variable of mental disorders, of which 10.7% is related to the variable of personality types and 4.5% is related to the intermediate variable of problem-oriented. Among the personality types, the neurotic personality type has the biggest role (0.632) and has a direct and significant effect on mental disorders. Also, the personality types of extroversion (-0.460), agreeableness (-0.312), and responsibility (-0.986) exert inverse and significant effects on mental disorders. CONCLUSION The results of the present study showed the frequency of personality disorders and other mental disorders among heart patients. Problem-oriented coping style plays a mediating role between personality types and mental disorders.
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Affiliation(s)
- Behzad Yaghoubi
- Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Nemati
- Department of Medical Emergencies, School of Allied Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Khosrow Agin
- Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Meysam Gazmeh
- Heart Center Hospital, Bushehr University of Medical Science, Bushehr, Iran
| | - Farshad Rezaei
- Heart Center Hospital, Bushehr University of Medical Science, Bushehr, Iran
| | - Elham Amirbandi
- Mehr Borazjan Hospital, Social Security Organization, Borazjan, Bushehr, Iran
| | - Akram Farhadi
- The Persian Gulf Tropical Medicine Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
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Scholte-Stalenhoef AN, Pijnenborg GHM, Hasson-Ohayon I, Boyette LL. Personality traits in psychotic illness and their clinical correlates: A systematic review. Schizophr Res 2023; 252:348-406. [PMID: 36804473 DOI: 10.1016/j.schres.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 12/18/2022] [Accepted: 01/02/2023] [Indexed: 02/17/2023]
Abstract
This systematic review focuses on personality traits according to both the Five Factor Model and Cloninger Psychobiological Model in relation to treatment related outcome variables across all stages of clinical psychotic illness. Search of Pubmed and Psychinfo databases led to final inclusion of 65 studies, which were ranked on quality and analyzed according to the associations between personality and outcome. Main findings are that higher levels of Harm Avoidance and Neuroticism are associated with higher symptom levels, tendency towards passive coping, greater self-stigma, lower quality of life, and Harm Avoidance to higher suicidality. Higher levels of Extraversion and higher levels of Self-Directedness are associated with more preference for active coping, more intrinsic motivation and higher self-esteem. Higher Novelty Seeking is related to more substance use and aggression, in men specifically. On outcome of trauma, care consumption and duration of untreated illness no consistent associations with personality traits were found. Combined evidence from both personality models however reveals a consistent pattern of personality traits related to clinical outcome in psychotic disorder, which is discussed in a dimensional manner.
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Affiliation(s)
- Anne Neeltje Scholte-Stalenhoef
- Ziekenhuis Groep Twente, Department of Psychiatry, Almelo, the Netherlands; University of Groningen, Department of Psychology, Groningen, the Netherlands.
| | | | | | - Lindy-Lou Boyette
- University of Amsterdam, Department of Clinical Psychology, Amsterdam, the Netherlands
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Fagerberg T, Söderman E, Gustavsson JP, Agartz I, Jönsson EG. Thirteen-year follow-up of long-term treated psychotic disorder: personality aspects. Nord J Psychiatry 2022; 76:386-393. [PMID: 34620037 DOI: 10.1080/08039488.2021.1981436] [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] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Personality is an aspect that can affect the symptoms and social function in individuals with psychotic disorders. Several studies have investigated personality in schizophrenia and other long-term psychotic disorders. No study has examined the stability of personality traits exceeding five years in patients with schizophrenia and related disorders. The aim of this study was to investigate the stability of personality traits over a 13-year period among patients with schizophrenia and related disorders and healthy individuals and to evaluate case-control differences. METHODS At three occasions during a 13-year period patients with schizophrenia and related disorders (n = 28) and healthy individuals (n = 57) completed Swedish universities Scales of Personality (SSP). Mean-level change and case-control differences were investigated for all the individuals using within- and between-subject analyses, respectively. Analyses were performed on three occasions for all 13 subscales and the three overall factors of SSP. Also, correlations, means, and SDs were calculated. RESULTS Tests of within-subject correlations showed differences in two subscales: Lack of Assertiveness, which were influenced by age, and Physical Trait Aggression, where patients' ratings were stable, whereas controls rated themselves less aggressive at a higher age. Between-subjects correlations showed differences regarding diagnosis, time, age, gender, or age × gender in nine of the 13 subscales as well as in factor Neuroticism. CONCLUSION Long-term follow-up showed generally high stability of personality traits measured with SSP. Between-subject analyses over the 13 years showed that patients differed compared to controls for the SSP factor Neuroticism as well as the subscale Detachment, which is in accordance with previous studies within this population.
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Affiliation(s)
- Tomas Fagerberg
- Human Brain Informatics (HUBIN), Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
| | - Erik Söderman
- Human Brain Informatics (HUBIN), Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
| | - J Petter Gustavsson
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Agartz
- Human Brain Informatics (HUBIN), Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden.,NORMENT - TOP study, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Erik G Jönsson
- Human Brain Informatics (HUBIN), Centre for Psychiatry Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden.,NORMENT - TOP study, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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8
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Pionke-Ubych R, Frydecka D, Cechnicki A, Krężołek M, Nelson B, Gawęda Ł. Integrating trauma, self-disturbances, cognitive biases, and personality into a model for the risk of psychosis: a longitudinal study in a non-clinical sample. Eur Arch Psychiatry Clin Neurosci 2022; 272:1073-1085. [PMID: 34859297 PMCID: PMC9388435 DOI: 10.1007/s00406-021-01355-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 11/08/2021] [Indexed: 11/28/2022]
Abstract
The hypothesis of the psychosis continuum enables to study the mechanisms of psychosis risk not only in clinical samples but in non-clinical as well. The aim of this longitudinal study was to investigate self-disturbances (SD), a risk factor that has attracted substantial interest over the last two decades, in combination with trauma, cognitive biases and personality, and to test whether SD are associated with subclinical positive symptoms (PS) over a 12-month follow-up period. Our study was conducted in a non-clinical sample of 139 Polish young adults (81 females, age M = 25.32, SD = 4.51) who were selected for frequent experience of subclinical PS. Participants completed self-report questionnaires for the evaluation of SD (IPASE), trauma (CECA.Q), cognitive biases (DACOBS) and personality (TCI), and were interviewed for subclinical PS (CAARMS). SD and subclinical PS were re-assessed 12 months after baseline measurement. The hypothesized model for psychosis risk was tested using path analysis. The change in SD and subclinical PS over the 12-month period was investigated with non-parametric equivalent of dependent sample t-tests. The models with self-transcendence (ST) and harm avoidance (HA) as personality variables were found to be well-fitted and explained 34% of the variance in subclinical PS at follow-up. Moreover, we found a significant reduction of SD and subclinical PS after 12 months. Our study suggests that combining trauma, cognitive biases, SD and personality traits such as ST and HA into one model can enhance our understanding of appearance as well as maintenance of subclinical PS.
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Affiliation(s)
- Renata Pionke-Ubych
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Jaracza 1, 00-378 Warsaw, Poland
| | - Dorota Frydecka
- Department of Psychiatry, Wroclaw Medical University, Wroclaw, Poland
| | - Andrzej Cechnicki
- Department of Community Psychiatry, Chair of Psychiatry, Medical College Jagiellonian University, Krakow, Poland
| | - Martyna Krężołek
- II Department of Psychiatry, The Medical University of Warsaw, Warszaw, Poland
| | - Barnaby Nelson
- Orygen, Parkville, VIC Australia ,Centre for Youth Mental Health, The University of Melbourne, Parkville, VIC Australia
| | - Łukasz Gawęda
- Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Jaracza 1, 00-378, Warsaw, Poland.
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Mihaljevic M, Franic D, Soldatovic I, Lukic I, Petrovic SA, Mirjanic T, Stankovic B, Zukic B, Zeljic K, Gasic V, Novakovic I, Pavlovic S, Adzic M, Maric NP. The FKBP5 genotype and childhood trauma effects on FKBP5 DNA methylation in patients with psychosis, their unaffected siblings, and healthy controls. Psychoneuroendocrinology 2021; 128:105205. [PMID: 33933892 DOI: 10.1016/j.psyneuen.2021.105205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/19/2021] [Accepted: 03/19/2021] [Indexed: 01/08/2023]
Abstract
Hypothalamic-pituitary-adrenal (HPA) axis activity mediates the relationship between childhood trauma (CT) and psychosis. The FKBP5 gene, one of the key regulators of HPA axis activity after stress exposure, has been found associated with psychosis. Allele-specific and CT related FKBP5 demethylation in intron 7 was revealed in different psychiatric disorders. However, no studies have investigated FKBP5 methylation in subjects with different genetic liability for psychosis. A total of 144 participants were included in the study: 48 patients with psychotic disorders, 50 unaffected siblings, and 46 healthy controls. CT was assessed by Childhood Trauma Questionnaire. The FKBP5 rs1360780 was genotyped and FKBP5 methylation analyses were performed using bisulfite conversion followed by Sanger sequencing at three CpG sites in intron 7. Mixed linear model was used to assess group differences depending on rs1360780 T allele and CT. Results showed a significant T allele-dependent decrease of FKBP5 methylation in patients compared to unaffected siblings and controls. Effect of interaction between T allele and CT exposure on FKBP5 demethylation was found in controls. No effect of both risk factors (T allele and CT) on FKBP5 methylation level was found in unaffected siblings. We confirmed previous evidence of the association between the FKBP5 rs1360780 T allele, CT, and decreased FKBP5 methylation in intron 7. Allele-specific FKBP5 demethylation found in patients could shed a light on altered HPA axis activity in a subgroup of patients related to stress-induced psychosis. FKBP5 methylation and potential protective mechanisms in unaffected siblings after trauma exposure require further investigation.
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Affiliation(s)
- Marina Mihaljevic
- Clinic for Psychiatry, Clinical Centre of Serbia, Pasterova 2, Belgrade 11000, Serbia; Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade 11000, Serbia.
| | - Dusanka Franic
- Department of Molecular Biology and Endocrinology, "VINČA" Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade 1100, Serbia
| | - Ivan Soldatovic
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade 11000, Serbia; Institute for Biostatistics, Medical Informatics and Research in Medicine, Faculty of Medicine, University of Belgrade, Dr Subotica, Belgrade 11000, Serbia
| | - Iva Lukic
- Department of Molecular Biology and Endocrinology, "VINČA" Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade 1100, Serbia
| | - Sanja Andric Petrovic
- Clinic for Psychiatry, Clinical Centre of Serbia, Pasterova 2, Belgrade 11000, Serbia
| | - Tijana Mirjanic
- Special Hospital for Psychiatric Disorders Kovin, Cara Lazara 253, Kovin 26220, Serbia
| | - Biljana Stankovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11010, Serbia
| | - Branka Zukic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11010, Serbia
| | - Katarina Zeljic
- Genetics & Evolution Department, Faculty of Biology, University of Belgrade, Studentski trg 3, Belgrade 11000, Serbia
| | - Vladimir Gasic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11010, Serbia
| | - Ivana Novakovic
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade 11000, Serbia; Institute of Human Genetics, Faculty of Medicine, University of Belgrade, Visegradska 26, Belgrade 11000, Serbia
| | - Sonja Pavlovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade 11010, Serbia
| | - Miroslav Adzic
- Department of Molecular Biology and Endocrinology, "VINČA" Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade 1100, Serbia
| | - Nadja P Maric
- Clinic for Psychiatry, Clinical Centre of Serbia, Pasterova 2, Belgrade 11000, Serbia; Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade 11000, Serbia
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Sauer-Zavala S, Southward MW, Semcho SA. Integrating and differentiating personality and psychopathology in cognitive behavioral therapy. J Pers 2020; 90:89-102. [PMID: 33070346 DOI: 10.1111/jopy.12602] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 10/09/2020] [Indexed: 12/23/2022]
Abstract
A large body of literature supports the strong association between personality features and psychopathology. This research has, however, had little influence on day-to-day therapeutic practice, particularly in cognitive behavioral approaches that have traditionally focused on addressing the symptoms of categorically defined diagnoses. Indeed, there are few CBT protocols aimed at altering the personality features. Recently, however, the CBT literature has displayed an increased focus on identifying alternative higher-order, dimensional mechanisms that may underscore the development and maintenance of broad classes of psychopathology (e.g., aversive reactivity to emotions, reward sensitivity, and performance expectancies). There is ample evidence linking these processes to DSM disorder severity; however, they may also represent a functional link between the personality domains and the disorder symptoms organized beneath them. The functional mechanisms through which an individual's personality confers risk for psychopathology may be naturally amenable to cognitive behavioral elements, and targeting these processes in treatment has the potential to address both disorder symptoms and underlying personality vulnerabilities. Thus, the identification of intermediate functional mechanisms may help bridge the gap between personality science and clinical practice.
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Affiliation(s)
| | | | - Stephen A Semcho
- Department of Psychology, University of Kentucky, Lexington, KY, USA
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Hasson-Ohayon I, Scholte-Stalenhoef AN, Schirmbeck F, de Haan L, Cahn W, Pijnenborg GHM, Boyette LL. Insight, personality, and symptoms among individuals with psychosis: Cross-sectional and longitudinal relationships. Schizophr Res 2020; 222:243-250. [PMID: 32527677 DOI: 10.1016/j.schres.2020.05.042] [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] [Received: 09/07/2019] [Revised: 03/19/2020] [Accepted: 05/17/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Reports on the relationship between clinical insight and psychotic symptoms have shown inconsistent results, and the association between clinical insight and personality has rarely been addressed. The aim of this study was to examine whether personality is correlated cross-sectionally with insight level, and longitudinally with change in insight, beyond symptoms. METHODS Participants were a sub-sample of the Dutch Genetic Risk and Outcome of Psychosis (GROUP) project. Two hundred and eleven participants diagnosed with non-affective psychotic disorders took part in the cross-sectional part of the study, of whom 136 took part in the three-year follow-up assessment. They were administered with self-report Birchwood insight scale and NEO-Five Factor Inventory, and clinicians assessed them according to PANSS and CDS symptoms scales. RESULTS Cross-sectional analysis showed baseline self-report insight was positively related to neuroticism and agreeableness and negatively related to extraversion. Longitudinal analysis showed change in level of self-reported insight was predicted by baseline-insight and change in symptoms of disorganization. Personality factors did not predict insight change (as measured either by self-report or by clinician assessment). DISCUSSION The cross-sectional findings showed self-report insight (as opposed to clinician-rated) is associated with personality traits, suggesting negative affect is related to higher level of insight and that having insight may be influenced by the wish to comply with views of professionals, or a tendency to cover up problems. The longitudinal findings imply that not personality but change in severity of symptoms of disorganization, and possibly other variables, predicts change in insight.
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Affiliation(s)
| | | | - Frederike Schirmbeck
- Department of Psychiatry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Arkin, Institute for Mental Health, Amsterdam, the Netherlands
| | - Lieuwe de Haan
- Department of Psychiatry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Arkin, Institute for Mental Health, Amsterdam, the Netherlands
| | - Wiepke Cahn
- University Medical Center Utrecht, Department of Psychiatry, Brain Centre Rudolf Magnus, Utrecht University, Utrecht, the Netherlands
| | | | - Lindy-Lou Boyette
- Department of Clinical Psychology, University of Amsterdam, Amsterdam, the Netherlands
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12
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Kotov R, Jonas KG, Carpenter WT, Dretsch MN, Eaton NR, Forbes MK, Forbush KT, Hobbs K, Reininghaus U, Slade T, South SC, Sunderland M, Waszczuk MA, Widiger TA, Wright AGC, Zald DH, Krueger RF, Watson D. Validity and utility of Hierarchical Taxonomy of Psychopathology (HiTOP): I. Psychosis superspectrum. World Psychiatry 2020; 19:151-172. [PMID: 32394571 PMCID: PMC7214958 DOI: 10.1002/wps.20730] [Citation(s) in RCA: 135] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The Hierarchical Taxonomy of Psychopathology (HiTOP) is a scientific effort to address shortcomings of traditional mental disorder diagnoses, which suffer from arbitrary boundaries between psychopathology and normality, frequent disorder co-occurrence, heterogeneity within disorders, and diagnostic instability. This paper synthesizes evidence on the validity and utility of the thought disorder and detachment spectra of HiTOP. These spectra are composed of symptoms and maladaptive traits currently subsumed within schizophrenia, other psychotic disorders, and schizotypal, paranoid and schizoid personality disorders. Thought disorder ranges from normal reality testing, to maladaptive trait psychoticism, to hallucinations and delusions. Detachment ranges from introversion, to maladaptive detachment, to blunted affect and avolition. Extensive evidence supports the validity of thought disorder and detachment spectra, as each spectrum reflects common genetics, environmental risk factors, childhood antecedents, cognitive abnormalities, neural alterations, biomarkers, and treatment response. Some of these characteristics are specific to one spectrum and others are shared, suggesting the existence of an overarching psychosis superspectrum. Further research is needed to extend this model, such as clarifying whether mania and dissociation belong to thought disorder, and explicating processes that drive development of the spectra and their subdimensions. Compared to traditional diagnoses, the thought disorder and detachment spectra demonstrated substantially improved utility: greater reliability, larger explanatory and predictive power, and higher acceptability to clinicians. Validated measures are available to implement the system in practice. The more informative, reliable and valid characterization of psychosis-related psychopathology offered by HiTOP can make diagnosis more useful for research and clinical care.
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Affiliation(s)
- Roman Kotov
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | - Katherine G Jonas
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | | | - Michael N Dretsch
- Walter Reed Army Institute of Research, US Army Medical Research Directorate - West, Silver Spring, MD, USA
| | - Nicholas R Eaton
- Department of Psychology, Stony Brook University, Stony Brook, NY, USA
| | - Miriam K Forbes
- Department of Psychology, Macquarie University, Sydney, Australia
| | - Kelsie T Forbush
- Department of Psychology, University of Kansas, Lawrence, KS, USA
| | - Kelsey Hobbs
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - Ulrich Reininghaus
- Department of Public Mental Health, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Germany
- ESRC Centre for Society and Mental Health, King's College London, London, UK
- Centre for Epidemiology and Public Health, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Tim Slade
- Matilda Centre for Research in Mental Health and Substance Abuse, University of Sydney, Sydney, NSW, Australia
| | - Susan C South
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA
| | - Matthew Sunderland
- Matilda Centre for Research in Mental Health and Substance Abuse, University of Sydney, Sydney, NSW, Australia
| | - Monika A Waszczuk
- Department of Psychiatry, Stony Brook University, Stony Brook, NY, USA
| | - Thomas A Widiger
- Department of Psychology, University of Kentucky, Lexington, KY, USA
| | - Aidan G C Wright
- Department of Psychology, University of Pittsburgh, Pittsburgh, PA, USA
| | - David H Zald
- Department of Psychology, Vanderbilt University, Nashville, TN, USA
| | - Robert F Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - David Watson
- Department of Psychology, University of Notre Dame, South Bend, IN, USA
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13
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Cicero DC, Jonas KG, Li K, Perlman G, Kotov R. Common Taxonomy of Traits and Symptoms: Linking Schizophrenia Symptoms, Schizotypy, and Normal Personality. Schizophr Bull 2019; 45:1336-1348. [PMID: 30753725 PMCID: PMC6811822 DOI: 10.1093/schbul/sbz005] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The associations among normal personality and many mental disorders are well established, but it remains unclear whether and how symptoms of schizophrenia and schizotypal traits align with the personality taxonomy. This study examined the joint factor structure of normal personality, schizotypy, and schizophrenia symptoms in people with psychotic disorders (n = 288) and never-psychotic adults (n = 257) in the Suffolk County Mental Health Project. First, we evaluated the structure of schizotypal (positive schizotypy, negative schizotypy, and mistrust) and normal traits. In both the psychotic-disorder and never-psychotic groups, the best-fitting model had 5 factors: neuroticism, extraversion, conscientiousness, agreeableness, and psychoticism. The schizotypy traits were placed on different dimensions: negative schizotypy went on (low) extraversion, whereas positive schizotypy and mistrust went on psychoticism. Next, we added symptoms to the model. Numerous alternatives were compared, and the 5-factor model remained best-fitting. Reality distortion (hallucinations and delusions) and disorganization symptoms were placed on psychoticism, and negative symptoms were placed on extraversion. Models that separated symptom dimensions from trait dimensions did not fit well, arguing that taxonomies of symptoms and traits are aligned. This is the first study to show that symptoms of psychosis, schizotypy, and normal personality reflect the same underlying dimensions. Specifically, (low) extraversion, negative schizotypy, and negative symptoms form one spectrum, whereas psychoticism, positive schizotypy, and positive and disorganized symptoms form another. This framework helps to understand the heterogeneity of psychosis and comorbidity patterns found in psychotic disorders. It also underscores the importance of traits to understanding these disorders.
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Affiliation(s)
- David C Cicero
- Department of Psychology, University of Hawaii at Manoa, Honolulu, HI,To whom correspondence should be addressed; tel: 808-956-3695, fax: 808-956-4700, e-mail:
| | | | - Kaiqiao Li
- Department of Psychiatry, Stony Brook University, Stony Brook, NY
| | - Greg Perlman
- Department of Psychiatry, Stony Brook University, Stony Brook, NY
| | - Roman Kotov
- Department of Psychiatry, Stony Brook University, Stony Brook, NY
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14
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Levin-Aspenson HF, Khoo S, Kotelnikova Y. Hierarchical taxonomy of psychopathology across development: Associations with personality. JOURNAL OF RESEARCH IN PERSONALITY 2019. [DOI: 10.1016/j.jrp.2019.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Bullis JR, Boettcher H, Sauer‐Zavala S, Farchione TJ, Barlow DH. What is an emotional disorder? A transdiagnostic mechanistic definition with implications for assessment, treatment, and prevention. CLINICAL PSYCHOLOGY-SCIENCE AND PRACTICE 2019. [DOI: 10.1111/cpsp.12278] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jacqueline R. Bullis
- Center for Anxiety and Related Disorders Boston University Boston Massachusetts
- Division of Depression and Anxiety Disorders Harvard Medical School McLean Hospital Belmont Massachusetts
| | - Hannah Boettcher
- Center for Anxiety and Related Disorders Boston University Boston Massachusetts
| | | | - Todd J. Farchione
- Center for Anxiety and Related Disorders Boston University Boston Massachusetts
| | - David H. Barlow
- Center for Anxiety and Related Disorders Boston University Boston Massachusetts
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16
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Balz J, Roa Romero Y, Keil J, Schubert F, Ittermann B, Mekle R, Montag C, Gallinat J, Senkowski D. Glutamate Concentration in the Superior Temporal Sulcus Relates to Neuroticism in Schizophrenia. Front Psychol 2018; 9:578. [PMID: 29867621 PMCID: PMC5949567 DOI: 10.3389/fpsyg.2018.00578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/05/2018] [Indexed: 11/13/2022] Open
Abstract
Clinical studies suggest aberrant neurotransmitter concentrations in the brains of patients with schizophrenia (SCZ). Numerous studies have indicated deviant glutamate concentrations in SCZ, although the findings are inconsistent. Moreover, alterations in glutamate concentrations could be linked to personality traits in SCZ. Here, we examined the relationships between personality dimensions and glutamate concentrations in a voxel encompassing the occipital cortex (OCC) and another voxel encompassing the left superior temporal sulcus (STS). We used proton magnetic resonance spectroscopy to examine glutamate concentrations in the OCC and the STS in 19 SCZ and 21 non-psychiatric healthy control (HC) participants. Personality dimensions neuroticism, extraversion, openness, agreeableness and conscientiousness were assessed using the NEO-FFI questionnaire. SCZ compared to HC showed higher glutamate concentrations in the STS, reduced extraversion scores, and enhanced neuroticism scores. No group differences were observed for the other personality traits and for glutamate concentrations in the OCC. For the SCZ group, glutamate concentrations in STS were negatively correlated with the neuroticism scores [r = -0.537, p = 0.018] but this was not found in HC [r(19) = 0.011, p = 0.962]. No other significant correlations were found. Our study showed an inverse relationship between glutamate concentrations in the STS and neuroticism scores in SCZ. Elevated glutamate in the STS might serve as a compensatory mechanism that enables patients with enhanced concentrations to control and prevent the expression of neuroticism.
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Affiliation(s)
- Johanna Balz
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Yadira Roa Romero
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Julian Keil
- Department of Biological Psychology, Christian-Albrechts-University Kiel, Kiel, Germany
| | | | | | - Ralf Mekle
- Center for Stroke Research Berlin, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Christiane Montag
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jürgen Gallinat
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Daniel Senkowski
- Department of Psychiatry and Psychotherapy, St. Hedwig Hospital, Charité - Universitätsmedizin Berlin, Berlin, Germany
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17
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Fagerberg T, Söderman E, Petter Gustavsson J, Agartz I, Jönsson EG. Stability of personality traits over a five-year period in Swedish patients with schizophrenia spectrum disorder and non-psychotic individuals: a study using the Swedish universities scales of personality. BMC Psychiatry 2018; 18:54. [PMID: 29486736 PMCID: PMC6389041 DOI: 10.1186/s12888-018-1617-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 01/24/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Personality is considered as an important aspect in persons with psychotic disorders. Several studies have investigated personality in schizophrenia. However, no study has investigated stability of personality traits exceeding three years in patients with schizophrenia. This study aims to investigate the stability of personality traits over a five-year period among patients with schizophrenia and non-psychotic individuals and to evaluate case-control differences. METHODS Patients with psychotic disorders (n = 36) and non-psychotic individuals (n = 76) completed Swedish universities Scales of Personality (SSP) at two occasions five years apart. SSP scores were analysed for effect of time and case-control differences by multiple analysis of covariance (MANCOVA) and within-subjects correlation. RESULTS MANCOVA within-subjects analysis did not show any effect of time. Thus, SSP mean scale scores did not significantly vary during the five-year interval. Within subject correlations (Spearman) ranged 0.30-0.68 and 0.54-0.75 for the different SSP scales in patients and controls, respectively. Patients scored higher than controls in SSP scales Somatic Trait Anxiety, Psychic Trait Anxiety, Stress Susceptibility, Lack of Assertiveness, Detachment, Embitterment, and Mistrust. CONCLUSION The stability of the SSP personality trait was reasonably high among patients with psychotic disorder, although lower than among non-psychotic individuals, which is in accordance with previous research.
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Affiliation(s)
- Tomas Fagerberg
- Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Centre for Psychiatric Research, Psychiatry Section, Karolinska Institutet and Hospital, Stockholm, Sweden
| | - Erik Söderman
- Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Centre for Psychiatric Research, Psychiatry Section, Karolinska Institutet and Hospital, Stockholm, Sweden
| | - J. Petter Gustavsson
- Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Ingrid Agartz
- Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Centre for Psychiatric Research, Psychiatry Section, Karolinska Institutet and Hospital, Stockholm, Sweden
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine. Psychiatry section, University of Oslo, Oslo, Norway
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Erik G. Jönsson
- Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Centre for Psychiatric Research, Psychiatry Section, Karolinska Institutet and Hospital, Stockholm, Sweden
- NORMENT, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine. Psychiatry section, University of Oslo, Oslo, Norway
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18
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Maric NP, Andric S, Mihaljevic M, Mirjanic T. Openness to experience shortens duration of untreated psychosis in Serbian clinical population. Early Interv Psychiatry 2018; 12:91-95. [PMID: 27125470 DOI: 10.1111/eip.12348] [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: 09/07/2015] [Revised: 01/07/2016] [Accepted: 03/28/2016] [Indexed: 11/30/2022]
Abstract
AIM To determine duration of untreated psychosis (DUP) in patients with schizophrenia-spectrum disorders from Serbia and to analyse factors that potentially contribute to the treatment delay, with focus on personality traits. METHODS Fifty seven patients (males 54.4%; age = 29.9 ± 6.0 yrs; age at the illness onset = 24.9 ± 5.1 yrs; IQ = 93.5 ± 12.2) were included. The assessment consisted of Nottingham Onset Schedule (NOS), Premorbid Adjustment Scale (PAS) and NEO Personality Inventory (NEO-PI-R). We used Cox regression model to evaluate relationship between DUP and explanatory variables. RESULTS Based on the most restrictive definition, the length of DUP in our sample was 77.8 ± 120.6 weeks (MED = 25.0 weeks). DUP was negatively associated with openness to experience (B = -0.804, P = 0.024). CONCLUSIONS We report the first evidence of DUP in Serbia, emphasizing that the personality domains are likely to impact the use of mental health care in persons with psychosis.
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Affiliation(s)
- Nadja P Maric
- School of Medicine, University of Belgrade, Belgrade, Serbia.,Clinic for Psychiatry, Clinical Centre of Serbia, Belgrade, Serbia
| | - Sanja Andric
- Clinic for Psychiatry, Clinical Centre of Serbia, Belgrade, Serbia
| | | | - Tijana Mirjanic
- Special Hospital for Psychiatric Disorders Kovin, Kovin, Serbia
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19
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Shi J, Yao Y, Zhan C, Mao Z, Yin F, Zhao X. The Relationship Between Big Five Personality Traits and Psychotic Experience in a Large Non-clinical Youth Sample: The Mediating Role of Emotion Regulation. Front Psychiatry 2018; 9:648. [PMID: 30564151 PMCID: PMC6288374 DOI: 10.3389/fpsyt.2018.00648] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 11/16/2018] [Indexed: 11/13/2022] Open
Abstract
Objective: Despite a long history of interest in personality traits and psychosis, the association between personality traits and psychotic experiences in the general population is not yet well understood. One possible factor that could influence the degree of distress from psychotic experiences is emotion regulation. The purpose of this study was to explore whether the association between personality and psychotic symptoms is already apparent in non-clinical youth as well as the mediating role of emotion regulation strategies between personality traits and psychotic experiences. Methods: Three thousand one hundred and forty seven college students were surveyed via self-report questionnaires measuring the Five-Factor model of personality, emotion regulation strategies, and psychotic experiences. Results: Neuroticism was found to be significantly positively correlated with psychotic experiences, while Extraversion, Openness, Agreeableness, and Conscientiousness were found to be significantly negatively correlated. Both the suppression and reappraisal strategies mediated the relationship between personality traits and psychotic experiences. Conclusion: Our findings suggest that youth with certain personality traits are more likely to have psychotic experiences. The reappraisal emotion regulation strategy could serve as a protective factor against the distress of psychotic experiences.
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Affiliation(s)
- Jingyu Shi
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Division of Medical Humanities & Behavioral Sciences, Tongji University School of Medicine, Shanghai, China
| | - Yuhong Yao
- Students Counseling Center, Tongji University, Shanghai, China
| | - Chenyu Zhan
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ziyu Mao
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fang Yin
- Students Counseling Center, Tongji University, Shanghai, China
| | - Xudong Zhao
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Division of Medical Humanities & Behavioral Sciences, Tongji University School of Medicine, Shanghai, China
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20
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van Dijk FA, Schirmbeck F, Haan LD. A longitudinal analysis of the effects of neuroticism and extraversion on subjective well-being in patients with schizophrenia. Psychiatry Res 2018; 259:538-544. [PMID: 29156427 DOI: 10.1016/j.psychres.2017.11.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 09/21/2017] [Accepted: 11/03/2017] [Indexed: 11/30/2022]
Abstract
One in five patients with a psychotic disorder has persistent low subjective well-being (SWB), which is associated with a poorer prognosis. In schizophrenia patients, personality traits are associated with SWB. The present study aims to evaluate whether neuroticism and extraversion influence SWB in patients with a psychotic disorder and healthy controls over the course of time. In 186 patients and 126 healthy control subjects, SWB was measured with the Subjective Well-being under Neuroleptics-20 (SWN) scale at baseline, three years and six years. We used the Five-Factor Inventory to assess neuroticism and extraversion. Mixed model analyses were conducted to investigate moderating associations of positive, negative and depressive symptoms, cannabis use, illness insight, weak social support and antipsychotic medication in patients. Higher neuroticism and lower extraversion were associated with lower SWB over six years in both groups. Personality traits did not have a differential effect on the course of SWB over time. In patients, a stable low SWB was found in 15.1% of the subjects. This group scored highest on neuroticism and lowest on extraversion compared to subjects with an increase in SWB or a stable high SWB. Our findings underline that personality traits are correlated to subjective well-being regardless of psychotic or depressive symptoms.
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Affiliation(s)
- Floor A van Dijk
- Department Early Psychosis, Academical Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands.
| | - Frederike Schirmbeck
- Department Early Psychosis, Academical Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
| | - Lieuwe de Haan
- Department Early Psychosis, Academical Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
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- Department Early Psychosis, Academical Medical Centre of the University of Amsterdam, Amsterdam, The Netherlands
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21
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The emerging role of the FKBP5 gene polymorphisms in vulnerability-stress model of schizophrenia: further evidence from a Serbian population. Eur Arch Psychiatry Clin Neurosci 2017; 267:527-539. [PMID: 27552816 DOI: 10.1007/s00406-016-0720-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 08/01/2016] [Indexed: 10/21/2022]
Abstract
Increased reactivity to stress is observed in patients with schizophrenia spectrum disorders and their healthy siblings in comparison with the general population. Additionally, higher levels of neuroticism, as a proposed psychological measure of stress sensitivity, increase the risk of schizophrenia. HPA axis dysregulation is one of the possible mechanisms related to the vulnerability-stress model of schizophrenia, and recent studies revealed a possible role of the functional genetic variants of FK506-binding protein 51 (FKBP5) gene which modulate activity of HPA axis. The purpose of the present study was to investigate impact of FKBP5 on schizophrenia in Serbian patients and to explore relationship between genetic variants and neuroticism by using the case-sibling-control design. In 158 subjects, we measured psychotic experiences, childhood trauma and neuroticism. Nine single-nucleotide polymorphisms (rs9295158, rs3800373, rs9740080, rs737054, rs6926133, rs9380529, rs9394314, rs2766533 and rs12200498) were genotyped. The genetic influence was modeled using logistic regression, and the relationship between genetic variants and neuroticism was assessed by linear mixed model. Our results revealed genetic main effect of FKBP5 risk alleles (A allele of rs9296158 and T allele of rs3800373) and AGTC "risk" haplotype combination (rs9296158, rs3800373, rs9470080 and rs737054, respectively) on schizophrenia, particularly when childhood trauma was set as a confounding factor. We confirmed strong relationship between neuroticism and psychotic experiences in patients and siblings and further showed relationship between higher levels of neuroticism and FKBP5 risk variants suggesting potential link between biological and psychosocial risk factors. Our data support previous findings that trauma exposure shapes FKBP5 impact on schizophrenia.
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22
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Hayes JF, Osborn DPJ, Lewis G, Dalman C, Lundin A. Association of Late Adolescent Personality With Risk for Subsequent Serious Mental Illness Among Men in a Swedish Nationwide Cohort Study. JAMA Psychiatry 2017; 74:703-711. [PMID: 28538982 PMCID: PMC5710245 DOI: 10.1001/jamapsychiatry.2017.0583] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
IMPORTANCE Understanding of personality as an independent risk factor for serious mental illness (SMI) remains limited. Recently, overlap between the polygenic basis for specific personality traits and specific SMIs has been identified. OBJECTIVE To determine the association of the adolescent personality domains of social maturity, mental energy, and emotional stability with later diagnosis of SMI. DESIGN, SETTING, AND PARTICIPANTS This longitudinal cohort study enrolled Swedish male military conscripts aged 18 or 19 years from January 1, 1974, through December 31, 1997. The diagnosis of an SMI was extracted from the National Patient Register for all inpatient treatment episodes in Sweden from January 1, 1974, through December 31, 2011. Data were analyzed from May 3 to September 16, 2016. EXPOSURES Social maturity, mental energy, and emotional stability assessed at conscription interview. MAIN OUTCOMES AND MEASURES Inpatient diagnoses of bipolar disorder, schizoaffective disorder, schizophrenia, and other nonaffective psychoses occurring until December 31, 2011. RESULTS Of the 1 017 691 men included in the cohort, 4310 developed bipolar disorder; 784, schizoaffective disorder; 4823, schizophrenia; and 5013, other nonaffective psychoses. After adjustment, with use of mean scores as a reference, low social maturity (hazard ratio [HR], 1.61; 95% CI, 1.48-1.74), low mental energy (HR, 1.34; 95% CI, 1.24-1.44), and low emotional stability (HR, 1.51; 95% CI, 1.40-1.63) were inversely associated with schizophrenia in a dose-dependent fashion. Other nonaffective psychoses displayed a similar pattern. Bipolar disorder was associated with high (HR, 1.21; 95% CI, 1.09-1.35) and low (HR, 1.12; 95% CI, 1.01-1.25) social maturity and low emotional stability (HR, 1.62; 95% CI, 1.46-1.78). Schizoaffective disorder was associated with low emotional stability (HR, 1.53; 95% CI, 1.26-1.85). CONCLUSIONS AND RELEVANCE Emotional stability is inversely associated with all SMI. Bipolar disorder has a unique U-shaped association with social maturity. Premorbid personality may reflect subtle changes in cerebral function, may combine with symptoms and other neurocognitive deficits to influence illness presentation, and/or may be owing to shared genetic architecture.
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Affiliation(s)
- Joseph F. Hayes
- Division of Psychiatry, University College London, London, England
| | | | - Glyn Lewis
- Division of Psychiatry, University College London, London, England
| | - Christina Dalman
- Department of Public Health Sciences, Unit of Public Health Epidemiology, Karolinska Institute, Stockholm, Sweden
| | - Andreas Lundin
- Department of Public Health Sciences, Unit of Public Health Epidemiology, Karolinska Institute, Stockholm, Sweden
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23
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Dupuis M, Meier E, Rudaz D, Strippoli MPF, Castelao E, Preisig M, Capel R, Vandeleur CL. Psychiatric symptoms and response quality to self-rated personality tests: Evidence from the PsyCoLaus study. Psychiatry Res 2017; 252:118-125. [PMID: 28260642 DOI: 10.1016/j.psychres.2017.02.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 01/27/2017] [Accepted: 02/18/2017] [Indexed: 11/26/2022]
Abstract
Despite the fact that research has demonstrated consistent associations between self-rated measures of personality dimensions and mental disorders, little has been undertaken to investigate the relation between psychiatric symptoms and response patterns to self-rated tests. The aim of this study was to investigate the association between psychiatric symptoms and response quality using indices from our functional method. A sample of 1,784 participants from a Swiss population-based cohort completed a personality inventory (NEO-FFI) and a symptom checklist of 90 items (SCL-90-R). Different indices of response quality were calculated based on the responses given to the NEO-FFI. Associations among the responses to indices of response quality, sociodemographic characteristics and the SCL-90-R dimensions were then established. Psychiatric symptoms were associated with several important differences in response quality, questioning subjects' ability to provide valid information using self-rated instruments. As suggested by authors, psychiatric symptoms seem associated with differences in personality scores. Nonetheless, our study shows that symptoms are also related to differences in terms of response patterns as sources of differences in personality scores. This could constitute a bias for clinical assessment. Future studies could still determine whether certain subpopulations of subjects are more unable to provide valid information to self-rated questionnaires than others.
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Affiliation(s)
- Marc Dupuis
- Institute of Psychology, University of Lausanne, Geopolis Building, CH-1015 Lausanne, Switzerland.
| | - Emanuele Meier
- Institute of Psychology, University of Lausanne, Geopolis Building, CH-1015 Lausanne, Switzerland
| | - Dominique Rudaz
- Centre for Research in Psychiatric Epidemiology and Psychopathology, Lausanne University Hospital, Department of Psychiatry, Switzerland
| | - Marie-Pierre F Strippoli
- Centre for Research in Psychiatric Epidemiology and Psychopathology, Lausanne University Hospital, Department of Psychiatry, Switzerland
| | - Enrique Castelao
- Centre for Research in Psychiatric Epidemiology and Psychopathology, Lausanne University Hospital, Department of Psychiatry, Switzerland
| | - Martin Preisig
- Centre for Research in Psychiatric Epidemiology and Psychopathology, Lausanne University Hospital, Department of Psychiatry, Switzerland
| | - Roland Capel
- Institute of Psychology, University of Lausanne, Geopolis Building, CH-1015 Lausanne, Switzerland
| | - Caroline L Vandeleur
- Centre for Research in Psychiatric Epidemiology and Psychopathology, Lausanne University Hospital, Department of Psychiatry, Switzerland
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Bastiaens T, Smits D, De Hert M, Thys E, Bryon H, Sweers K, Teugels T, Van Looy J, Verwerft T, Vanwalleghem D, Van Bouwel L, Claes L. The Relationship Between the Personality Inventory for the DSM-5 (PID-5) and the Psychotic Disorder in a Clinical Sample. Assessment 2017; 26:315-323. [PMID: 29214869 DOI: 10.1177/1073191117693922] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recent studies have successfully investigated the validity of the DSM-5 Alternative Model for Personality Disorders. In a final sample of 174 psychiatric patients, the present study examined the relationship between the Personality Inventory for the DSM-5 (PID-5) and syndromal psychosis. Results showed that patients diagnosed with versus without a psychotic disorder significantly differed on all PID-5 domains except Antagonism. Discriminant function analysis indicated that lower Detachment, lower Negative Affect, lower Disinhibition, and higher Psychoticism best discriminated patients with a psychotic disorder from patients with other psychiatric conditions. Subsequent stepwise discriminant analysis on all facet scales of the contributing PID-5 domains revealed that higher Unusual Beliefs, lower Depressivity, and lower Distractibility contributed the most to this differentiation. PID-5 Psychoticism scores showed moderate correlations with current psychotic symptoms and were not influenced by dose of antipsychotic medication. Our results support the ability of the PID-5 to discriminate between patients with and without psychotic disorder.
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Affiliation(s)
| | - Dirk Smits
- 2 KU Leuven, Leuven, Belgium.,3 Odisee University College, Brussels, Belgium
| | - Marc De Hert
- 1 UPC Z.ORG KU Leuven, Kortenberg, Belgium.,2 KU Leuven, Leuven, Belgium
| | - Erik Thys
- 1 UPC Z.ORG KU Leuven, Kortenberg, Belgium.,2 KU Leuven, Leuven, Belgium.,4 Psychiatric Centre St. Alexius, Elsene, Belgium
| | | | - Kim Sweers
- 1 UPC Z.ORG KU Leuven, Kortenberg, Belgium
| | | | | | | | | | | | - Laurence Claes
- 2 KU Leuven, Leuven, Belgium.,7 University of Antwerp, Antwerp, Belgium
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Fagerberg T, Söderman E, Gustavsson JP, Agartz I, Jönsson EG. Personality traits in established schizophrenia: aspects of usability and differences between patients and controls using the Swedish universities Scales of Personality. Nord J Psychiatry 2016; 70:462-9. [PMID: 27103375 PMCID: PMC4926784 DOI: 10.3109/08039488.2016.1159331] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Personality is considered as an important aspect that can affect symptoms and social function in persons with schizophrenia. The personality questionnaire Swedish universities Scales of Personality (SSP) has not previously been used in psychotic disorder. AIMS To investigate if SSP has a similar internal consistency and factor structure in a psychosis population as among healthy controls and if patients with psychotic disorders differ from non-psychotic individuals in their responses to the SSP. METHODS Patients with psychotic disorders (n = 107) and healthy controls (n = 119) completed SSP. SSP scores were analyzed for internal consistency and case-control differences by Cronbach's alfa and multiple analysis of covariance, respectively. RESULTS Internal consistencies among patients were overall similar to that of controls. The patients scored significantly higher in seven (Somatic trait anxiety, Psychic trait anxiety, Stress susceptibility, Lack of assertiveness, Detachment, Embitterment, Mistrust) and lower in three (Physical trait aggression, Verbal trait aggression, Adventure seeking) of the 13 scales of the inventory. In three scales (Impulsiveness, Social desirability and Trait irritability) there was no significant difference between the scoring of patients and healthy controls. CONCLUSION The reliability estimates suggest that SSP can be used by patients with psychotic disorders in stable remission. Patients score higher on neuroticism-related scales and lower on aggression-related scales than controls, which is in accordance with earlier studies where other personality inventories were used.
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Affiliation(s)
- Tomas Fagerberg
- a Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Psychiatry Section , Karolinska Institutet and Hospital , Stockholm , Sweden
| | - Erik Söderman
- a Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Psychiatry Section , Karolinska Institutet and Hospital , Stockholm , Sweden
| | - J Petter Gustavsson
- b Division of Psychology, Department of Clinical Neuroscience , Karolinska Institutet , Stockholm , Sweden
| | - Ingrid Agartz
- a Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Psychiatry Section , Karolinska Institutet and Hospital , Stockholm , Sweden ;,c NORMENT, KG Jebsen Centre for Psychosis Research , Institute of Clinical Medicine. Psychiatry section, University of Oslo , Norway ;,d Department of Psychiatric Research , Diakonhjemmet Hospital , Oslo , Norway
| | - Erik G Jönsson
- a Human Brain Informatics (HUBIN), Department of Clinical Neuroscience, Psychiatry Section , Karolinska Institutet and Hospital , Stockholm , Sweden ;,c NORMENT, KG Jebsen Centre for Psychosis Research , Institute of Clinical Medicine. Psychiatry section, University of Oslo , Norway
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Ohi K, Shimada T, Nitta Y, Kihara H, Okubo H, Uehara T, Kawasaki Y. The Five-Factor Model personality traits in schizophrenia: A meta-analysis. Psychiatry Res 2016; 240:34-41. [PMID: 27082867 DOI: 10.1016/j.psychres.2016.04.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 03/05/2016] [Accepted: 04/03/2016] [Indexed: 11/27/2022]
Abstract
Personality is one of important factors in the pathogenesis of schizophrenia because it affects patients' symptoms, cognition and social functioning. Several studies have reported specific personality traits in patients with schizophrenia compared with healthy subjects. However, the results were inconsistent among studies. The NEO Five-Factor Inventory (NEO-FFI) measures five personality traits: Neuroticism (N), Extraversion (E), Openness (O), Agreeableness (A) and Conscientiousness (C). Here, we performed a meta-analysis of these personality traits assessed by the NEO-FFI in 460 patients with schizophrenia and 486 healthy subjects from the published literature and investigated possible associations between schizophrenia and these traits. There was no publication bias for any traits. Because we found evidence of significant heterogeneity in all traits among the studies, we applied a random-effect model to perform the meta-analysis. Patients with schizophrenia showed a higher score for N and lower scores for E, O, A and C compared with healthy subjects. The effect sizes of these personality traits ranged from moderate to large. These differences were not affected by possible moderator factors, such as gender distribution and mean age in each study, expect for gender effect for A. These findings suggest that patients with schizophrenia have a different personality profile compared with healthy subjects.
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Affiliation(s)
- Kazutaka Ohi
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan.
| | - Takamitsu Shimada
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Yusuke Nitta
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Hiroaki Kihara
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Hiroaki Okubo
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Takashi Uehara
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Yasuhiro Kawasaki
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
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Shakoor S, Zavos HMS, Haworth CMA, McGuire P, Cardno AG, Freeman D, Ronald A. Association between stressful life events and psychotic experiences in adolescence: evidence for gene-environment correlations. Br J Psychiatry 2016; 208:532-8. [PMID: 27056622 PMCID: PMC4887723 DOI: 10.1192/bjp.bp.114.159079] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 10/08/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND Stressful life events (SLEs) are associated with psychotic experiences. SLEs might act as an environmental risk factor, but may also share a genetic propensity with psychotic experiences. AIMS To estimate the extent to which genetic and environmental factors influence the relationship between SLEs and psychotic experiences. METHOD Self- and parent reports from a community-based twin sample (4830 16-year-old pairs) were analysed using structural equation model fitting. RESULTS SLEs correlated with positive psychotic experiences (r = 0.12-0.14, all P<0.001). Modest heritability was shown for psychotic experiences (25-57%) and dependent SLEs (32%). Genetic influences explained the majority of the modest covariation between dependent SLEs and paranoia and cognitive disorganisation (bivariate heritabilities 74-86%). The relationship between SLEs and hallucinations and grandiosity was explained by both genetic and common environmental effects. CONCLUSIONS Further to dependent SLEs being an environmental risk factor, individuals may have an underlying genetic propensity increasing their risk of dependent SLEs and positive psychotic experiences.
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Affiliation(s)
- Sania Shakoor
- Sania Shakoor, PhD, Centre for Brain and Cognitive Development, Department of Psychological Sciences, Birkbeck, University of London, London; Helena M. S. Zavos, PhD, King's College London, MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London; Claire M. A. Haworth, Department of Psychology, University of Warwick, Coventry;, Phillip McGuire, PhD, MD, FRCPsych, King's College London, Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, London; Alastair G. Cardno, PhD, MMedSc, FRCPsych, MBChB, Academic Unit of Psychiatry and Behavioural Sciences, University of Leeds, Leeds; Daniel Freeman, PhD, DClinPsy, CPsychol, FBPsS, Department of Psychiatry, University of Oxford, Oxford; Angelica Ronald, PhD, Centre for Brain and Cognitive Development, Department of Psychological Sciences, Birkbeck, University of London, London, UK
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Korostenskaja M, Ruksenas O, Pipinis E, Griskova-Bulanova I. Phase-locking index and power of 40-Hz auditory steady-state response are not related to major personality trait dimensions. Exp Brain Res 2015; 234:711-9. [PMID: 26586270 DOI: 10.1007/s00221-015-4494-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 11/02/2015] [Indexed: 01/10/2023]
Abstract
Although a number of studies have demonstrated state-related dependence of auditory steady-state responses (ASSRs), the investigations assessing trait-related ASSR changes are limited. Five consistently identified major trait dimensions, also referred to as "big five" (Neuroticism, Extraversion, Openness, Agreeableness and Conscientiousness), are considered to account for virtually all personality variances in both healthy people and those with psychiatric disorders. The purpose of the present study was, for the first time, to establish the link between 40-Hz ASSR and "big five" major personality trait dimensions in young healthy adults. Ninety-four young healthy volunteers participated (38 males and 56 females; mean age ± SD 22.180 ± 2.75). The 40-Hz click trains were presented for each subject 30 times with an inter-train interval of 1-1.5 s. The EEG responses were recorded from F3, Fz, F4, C3, Cz, C4, P3, Pz and P4 locations according to 10/20 electrode placement system. Phase-locking index (PLI) and event-related power perturbation (ERSP) were calculated, each providing the following characteristics: peak time, entrainment frequency, peak value and mean value. For assessing "big five" personality traits, NEO Personality Inventory Revised (NEO-PI-R) was used. No significant correlation between 40-Hz ASSR PLI or ERSP and "big five" personality traits was observed. Our results indicate that there is no dependence between 40-Hz ASSR entrainment and personality traits, demonstrating low individual 40-Hz variability in this domain. Our results support further development of 40-Hz ASSR as a neurophysiological marker allowing distinguishing between healthy population and patients with psychiatric disorders.
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Affiliation(s)
- Milena Korostenskaja
- Milena's Functional Brain Mapping and Brain-Computer Interface Lab, Florida Hospital for Children, Orlando, FL, USA
- MEG Lab, Florida Hospital, Orlando, FL, USA
- Comprehensive Pediatric Epilepsy Center, Florida Hospital for Children, Orlando, FL, USA
| | - Osvaldas Ruksenas
- Department of Neurobiology and Biophysics, Vilnius University, M. K. Ciurlionio 21/27, 03101, Vilnius, Lithuania
| | - Evaldas Pipinis
- Department of Neurobiology and Biophysics, Vilnius University, M. K. Ciurlionio 21/27, 03101, Vilnius, Lithuania
| | - Inga Griskova-Bulanova
- Department of Neurobiology and Biophysics, Vilnius University, M. K. Ciurlionio 21/27, 03101, Vilnius, Lithuania.
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Compton MT, Bakeman R, Alolayan Y, Balducci PM, Bernardini F, Broussard B, Crisafio A, Cristofaro S, Amar P, Johnson S, Wan CR. Personality domains, duration of untreated psychosis, functioning, and symptom severity in first-episode psychosis. Schizophr Res 2015; 168:113-9. [PMID: 26209478 PMCID: PMC4929617 DOI: 10.1016/j.schres.2015.06.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 06/24/2015] [Accepted: 06/29/2015] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Early-course psychotic disorders have been extensively studied in terms of phenomenology, but little is known about the influence of personality traits on clinical features of first-episode psychosis. The aim of this study was to explore how the "big five" personality domains (neuroticism, extraversion, openness, agreeableness, and conscientiousness) are associated with treatment delay (duration of untreated psychosis, DUP), functioning, and positive and negative symptom severity. METHODS Data for these analyses were obtained from 104 participants enrolled from psychiatric inpatient units in Atlanta, Georgia, between August 2008 and March 2011. The NEO Five-Factor Inventory (NEO-FFI) was used to assess personality domains, and all other variables were measured in a standardized and rigorous manner using psychometrically sound instruments. Correlational analyses and multiple linear regressions were carried out to examine the strength of associations between variables of interest. RESULTS Findings indicated that except for openness, all of the other personality variables contributed to some extent to the variance in DUP. Conscientiousness was positively correlated with functioning. Agreeableness was independently negatively associated with positive symptom severity and extraversion was independently negatively correlated with negative symptom severity. CONCLUSIONS We report the first evidence suggesting that DUP is in part driven by personality domains. Functioning and symptom severity are also associated with those domains. Personality should be taken into account in order to better understand the phenomenology of early-course psychotic disorders as well as treatment-seeking behaviors.
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Affiliation(s)
- Michael T Compton
- Lenox Hill Hospital, Department of Psychiatry, New York, NY, USA; Hofstra North Shore-LIJ School of Medicine at Hofstra University, Department of Psychiatry, Hempstead, NY, USA.
| | - Roger Bakeman
- Georgia State University, Department of Psychology, Atlanta, GA, USA
| | - Yazeed Alolayan
- The George Washington University School of Medicine and Health Sciences, Department of Psychiatry and Behavioral Sciences, Washington, DC, USA
| | - Pierfrancesco Maria Balducci
- Lenox Hill Hospital, Department of Psychiatry, New York, NY, USA; Scuola di Specializzazione in Psichiatria, Dipartimento di Medicina, Università degli Studi di Perugia, Italy
| | - Francesco Bernardini
- Lenox Hill Hospital, Department of Psychiatry, New York, NY, USA; Scuola di Specializzazione in Psichiatria, Dipartimento di Medicina, Università degli Studi di Perugia, Italy
| | - Beth Broussard
- Lenox Hill Hospital, Department of Psychiatry, New York, NY, USA
| | - Anthony Crisafio
- The George Washington University School of Medicine and Health Sciences, Department of Psychiatry and Behavioral Sciences, Washington, DC, USA
| | - Sarah Cristofaro
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Patrick Amar
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Stephanie Johnson
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Claire Ramsay Wan
- Tufts University School of Medicine, Physician Assistant Program, Boston, MA, USA
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Boyette LL, Nederlof J, Meijer C, de Boer F, de Haan L. Three year stability of Five-Factor Model personality traits in relation to changes in symptom levels in patients with schizophrenia or related disorders. Psychiatry Res 2015; 229:539-44. [PMID: 26099654 DOI: 10.1016/j.psychres.2015.05.057] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 05/13/2015] [Accepted: 05/15/2015] [Indexed: 11/15/2022]
Abstract
Five-Factor Model (FFM) personality traits are related to a wide range of clinical outcome in patients with psychotic disorders. However, it is not sufficiently clear whether psychotic illness, particularly fluctuation in negative symptoms and psychotic relapse, affects personality. The current study examined the 3-year temporal stability of FFM traits in 91 patients with non-affective psychotic disorders with a maximum duration of illness of 10 years and 32 control subjects without a (family member with) a diagnosis of psychotic illness. In patients, change in negative symptoms predicted changes in Neuroticism and (inversely) in Extraversion and Openness. However, when correcting for depressive symptoms, negative symptoms no longer predicted change in any FFM trait. Clinical characteristics, such as psychotic relapse, were also not found to be related to change in FFM traits. Patients showed a slight increase in Conscientiousness levels, the other FFM traits showed mean-level stability. Rank-order stability of the FFM traits was moderate to strong, although weaker for Neuroticism in patients. Our findings indicate that psychotic symptoms exert limited effect on the stability of FFM traits in patients with psychotic disorders. Consistent with general population findings, one should guard against state-trait confusion between Neuroticism/Extraversion and depression.
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Affiliation(s)
- Lindy-Lou Boyette
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands.
| | - Jan Nederlof
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Carin Meijer
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Froukje de Boer
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Lieuwe de Haan
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
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32
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Schirmbeck F, Boyette LL, van der Valk R, Meijer C, Dingemans P, Van R, de Haan L, Kahn RS, de Haan L, van Os J, Wiersma D, Bruggeman R, Cahn W, Meijer C, Myin-Germeys I. Relevance of Five-Factor Model personality traits for obsessive-compulsive symptoms in patients with psychotic disorders and their un-affected siblings. Psychiatry Res 2015; 225:464-70. [PMID: 25613659 DOI: 10.1016/j.psychres.2014.11.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 10/17/2014] [Accepted: 11/30/2014] [Indexed: 11/29/2022]
Abstract
High rates of obsessive-compulsive symptoms (OCS) in schizophrenia require pathogenic explanations. Personality traits may represent risk and resiliency factors for the development of mental disorders and their comorbidities. The aim of the present study was to explore the associations between Five-Factor Model (FFM) personality traits and the liability for OCS in patients with psychotic disorders and in their un-affected siblings. FFM traits, occurrence and severity of OCS and (subclinical) psychotic symptoms were assessed in 208 patients and in 281 siblings. Differences in FFM traits between participants with vs. without comorbid OCS were examined and the predictive value of FFM traits on group categorization was evaluated. Associations between FFM traits and OCS severity were investigated. Patients and siblings with OCS showed significantly higher Neuroticism compared to their counterparts without OCS. Neuroticism was positively associated with higher OCS severity and significantly predicted group assignment in both patients and in siblings. Patients with comorbid OCS presented with lower scores on Extraversion and Conscientiousness. Higher Neuroticism, and to a lesser degree lower Extraversion and Conscientiousness might add to the vulnerability of patients with a psychotic disorder to also develop OCS. Future prospective studies are needed to elucidate proposed personality-psychopathology interrelations and possible mediating factors.
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Affiliation(s)
- Frederike Schirmbeck
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands.
| | - Lindy-Lou Boyette
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | | | - Carin Meijer
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Peter Dingemans
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Rien Van
- Arkin Mental Health Department, Amsterdam, The Netherlands
| | - Lieuwe de Haan
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | | | - René S Kahn
- Department of Psychiatry, Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht The Netherlands
| | - Lieuwe de Haan
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Jim van Os
- Maastricht University Medical Center, South Limburg Mental Health Research and Teaching Network, Maastricht, The Netherlands
| | - Durk Wiersma
- University Medical Center Groningen, Department of Psychiatry, University of Groningen, The Netherlands
| | - Richard Bruggeman
- University Medical Center Groningen, Department of Psychiatry, University of Groningen, The Netherlands
| | - Wiepke Cahn
- Department of Psychiatry, Rudolf Magnus Institute of Neuroscience, University Medical Center, Utrecht The Netherlands
| | - Carin Meijer
- Academic Medical Center University of Amsterdam, Department of Psychiatry, Amsterdam, The Netherlands
| | - Inez Myin-Germeys
- Maastricht University Medical Center, South Limburg Mental Health Research and Teaching Network, Maastricht, The Netherlands
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