Personality Traits Neuroticism Research Articles

Exploring the bidirectional causality between neuroticism and frailty: a Mendelian randomization analysis

BackgroundEpidemiological studies have confirmed the relationship between personality trait neuroticism and physical health. However, the relationship between neuroticism and frailty remains unconfirmed. This study employed a bi-directional two-sample Mendelian randomization (MR) approach to investigate the causal relationship between neuroticism and frailty.MethodsThe neuroticism genome-wide association study (GWAS) data from the UK Biobank contained twelve neuroticism-related traits with 489,212 participants. The genetic frailty index data were extracted from the UK Biobank and Swedish TwinGene, involving 175,226 individuals. Independent genetic variants associated with neuroticism and frailty were selected as instrumental variables. Inverse variance weighted (IVW), MR-Egger, weighted median, weighted mode, and MR-PRESSO were mainly used for MR analysis.ResultsThe MR analysis showed a positive causal relationship between neuroticism and the risk of frailty (odds ratio (OR) = 1.627, 95% confidence interval (CI) = 1.538–1.722, P < 0.001). In the reverse direction, frailty had a causal effect on a higher risk of neuroticism (OR = 1.270, 95% CI = 1.173–1.375, P < 0.001). Steiger tests indicated that reverse causation did not bias the identified causal relationships.ConclusionsOur study provides genetic evidence suggesting a bi-directional causal relationship between frailty and neuroticism. In this bi-directional MR study, there were positive causal relationships between neuroticism-related phenotypes and frailty, and in the reverse direction, frailty was also positively correlated with neuroticism.

Examining the effect of personality on user acceptance of conditionally automated vehicles

Automated vehicle acceptance (AVA) research has grown substantially in the past few years. There is a paucity of research on the role of the big five personality traits on attitudes towards automated vehicles (AVs) and AVA. This is a critical shortcoming given that personality is considered a critical factor explaining technology adoption. Our major theoretical contribution is the integration of the most popular personality measure – the big five – and one of the most influential technology acceptance models – Unified Theory of Acceptance and Use of Technology (UTAUT2). A questionnaire was administered to 9,339 respondents from nine countries to predict the behavioral intention to use conditionally automated vehicles (CondAVs). The original UTAUT2 was extended by trust and driver engagement and the big five personality traits openness, conscientiousness, extraversion, agreeableness, and neuroticism. Structural equation modeling was applied to examine the direct effects of these constructs on behavioral intention and the indirect effects of the personality traits on the independent constructs of the extended UTAUT2. The results have shown positive effects of social influence, trust, and performance expectancy on the behavioral intention to use CondAVs. Most of the hypotheses pertaining to the role of the personality traits on the UTAUT2 constructs were supported, but the effects were relatively small (< 0.25). Our findings support the usefulness of UTAUT2 in evaluating the success of AVs, providing crucial insights into the factors driving the acceptance of CondAVs. The cross-country analysis provides further insights into the role of an individual’s personality for AVA. Our study yields important implications for practitioners. Given the small effect sizes of personality, designing CondAVs around the personalities of their customers during development and commercialization may be ineffective to promote trust and acceptance.

Migraine and its major subtypes - with and without aura are associated with polygenic scores for autism.

Individuals with autism spectrum disorder (ASD) experience a wide array of neurological, psychiatric and medical comorbidities, yet little attention has been given to the potential link between ASD and migraine, one of the most prevalent neurological disorders worldwide. This study aimed to investigate whether a genetic predisposition for ASD is linked to migraine and its major subtypes, with and without aura. Additionally, potential moderator and mediators of the association between ASD and migraine were explored. Polygenic scores (PGS) for ASD were constructed based on the genome-wide association study by the Psychiatric Genomics Consortium, on the UK Biobank cohort dataset comprising 337,386 participants using PRSice-2. Regression analyses were performed to investigate the association of ASD PGS with migraine and its major subtypes, with and without aura. Sex was explored as a potential moderating factor. The mediation analyses took into consideration variables such as education, personality trait neuroticism, body mass index (BMI) and four categories of comorbidities (psychiatric, vascular, neurologic and others). ASD PGS were significantly and positively associated with migraine (odds ratio (OR) = 1.04, 95% confidence interval (CI) = 1.02-1.05, p < 0.002), migraine without aura (OR = 1.05, 95% CI = 1.02-1.07, p < 0.002) and migraine with aura (OR = 1.05, 95% CI = 1.02-1.07, p < 0.002). No moderating effect of sex on the association between ASD PGS and migraine was observed. As for potential mediators, only the personality trait neuroticism significantly mediated the association between ASD PGS and migraine, with the proportion of effect mediated 8.75% (95% CI = 4-18%). Our study suggests that individuals genetically predisposed to autism are at higher risk of experiencing migraine, including the two major subtypes, with and without aura. While emphasizing the complex shared genetic and pathophysiological interactions of these conditions, the role of personality trait neuroticism as a mediator of this relationship is highlighted.

The Mediating Role of Cognitive Biases and Difficulty in Emotion Regulation in the Relationship between Personality and Character with Negative Symptoms in Schizophrenia

Negative symptoms result in a significant burden of illness and reduced quality of life in individuals with schizophrenia; therefore, the main aim of the present study was to investigate the mediating role of cognitive biases and difficulty in emotion regulation in the relationship between personality and character with negative symptoms of schizophrenia. This study was descriptive and correlational. The statistical population included all people with schizophrenia hospitalized in Razi Psychiatric Hospital in 2023-2024, of which 200 people were selected as the research sample using a convenience method. The data collection tools included the Positive and Negative Symptom Scale, Short Form of the Big Five Personality Factors Questionnaire, Short Version of the Temperament and Character Questionnaire, Cognitive Bias Assessment Scale and Short Form of Difficulties in Emotion Regulation. SPSS, and LISREL software were used for data analysis, as well as Pearson correlation method and structural equation modeling. The results showed that cognitive biases and difficulty in emotion regulation have a mediating role in the relationship between personality (neuroticism, extraversion and agreeableness) and character (self-direction, cooperation and self-transcendence) with negative symptoms of schizophrenia (CFI=1, NNFI=0.99, IFI=1, GFI=0.99, RMSEA=0.049). Individuals with schizophrenia with personality traits of neuroticism, extraversion, and character (self-direction and cooperation) experience negative symptoms due to cognitive biases and difficulty in emotion regulation. Therefore, training in emotion regulation skills and reducing cognitive biases may be an important initial component of the challenging task of treating negative symptoms of schizophrenia.

The Big 5 personality traits and investment biases: the role of financial literacy

PurposeThis paper investigates the associations among the Big 5 personality traits (neuroticism, conscientiousness, agreeableness, openness to experience and extroversion), nine prominent investment biases and the moderating role of financial literacy.Design/methodology/approachWe used survey data from 475 individual investors in India based on various benchmarked scales in the literature and structural equation modeling to evaluate the desired relationship between the constructs.FindingsOur evidence shows that the extroversion personality trait is the most vulnerable to behavioral biases, and overconfidence bias affects individual Indian investors the most. Financial literacy is positively associated with two biases (risk aversion and representativeness bias) and moderates the relationship between two personality traits (extroversion and agreeableness) and risk aversion.Research limitations/implicationsOur study has limitations. First, it does not examine financial literacy in detail. Therefore, researchers should examine financial literacy within larger frameworks than those used in our study. Second, we confined our analysis to the Big 5 personality traits and nine behavioral biases. Our selection of biases to include in the study involved some subjectivity. Third, we limited our analysis to Indian investors. Researchers should replicate our study to see if its findings are generalizable in other countries with differing characteristics. Our findings call for a more careful examination of the circumstances behind which personality traits manifest in specific bias.Practical implicationsInvestment advisors can help their clients make rational investment decisions by guiding them to deal with their investment biases.Social implicationsImproving financial literacy could help investors avoid the pitfalls of behavioral biases and increase their performance in the stock market.Originality/valueThis study is the first to provide a comprehensive framework that examines the relationship between personality traits and investor biases and the moderating role of financially literate investors.

Neuroticism's link to threat sensitivity: Evidence from a dynamic affect reactivity task.

The personality trait of neuroticism has been theoretically linked to threat sensitivity, but this perspective of neuroticism has resulted in mixed findings, arguably because mood states, rather than emotional reactions, have been examined. The present studies (total N = 519) administered a task capable of assessing emotional reactions-to appetitive versus aversive images-in a nearly continuous manner, parsing threat sensitivity in terms of emotional onsets, peak amplitudes, and prototypicality in responding. In the context of this tight temporal focus, higher levels of neuroticism tended to be associated with faster emotional onsets when aversive images were involved. In addition, neuroticism by valence interactions occurred with respect to peak amplitudes and prototypic patterning, with negativity effects for these parameters being amplified at higher, relative to lower, levels of neuroticism. These results link the neuroticism and emotion dynamics literatures while providing novel support for perspectives that emphasize neuroticism's link to threat sensitivity, in the present context defined in terms of faster, stronger, and more prototypical reactions to acute aversive events. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Nocturnal hypoxia in patients with sleep disorders: exploring its role as a mediator between neurotic personality traits and psychological symptoms.

Sleep disorders often coexist with personality and psychological issues, alongside nocturnal hypoxia. This study investigates the potential mediating role of nocturnal hypoxia between personality traits and psychological symptoms in individuals with sleep disorders. A cohort comprising 171 participants reporting sleep disturbances was recruited from Dalian Seventh People's Hospital. Psychological symptoms were assessed using the Symptom Checklist-90-R (SCL-90-R), while personality traits were evaluated using the Eysenck Personality Questionnaire (EPQ). Nocturnal hypoxia status was determined through overnight polysomnography. Mediation analysis, conducted using SPSS 23.0, demonstrated that the cumulative time of nocturnal peripheral oxygen saturation (SpO2) < 85% (T85) partially mediated the relationship between neuroticism and various psychological symptoms, including somatization (c=0.207, c'=0.164, a*b=0.043, proportion of mediation 20.8%), interpersonal sensitivity (c=0.360, c'=0.326, a*b=0.034, proportion of mediation 9.6%), depression (c=0.277, c'=0.234, a*b=0.042, proportion of mediation 15.3%), anxiety (c=0.240, c'=0.199, a*b=0.041, proportion of mediation 16.9%), hostility (c=0.241, c'=0.205, a*b=0.036, proportion of mediation 14.9%), phobic anxiety (c=0.271, c'=0.241, a*b=0.030, proportion of mediation 11.1%), and psychoticism (c=0.298, c'=0.266, a*b=0.032, proportion of mediation 10.8%). These findings underscore the potential mediating role of nocturnal hypoxia in the association between neuroticism personality traits and psychological symptoms among individuals with sleep disorders. Our research holds considerable significance in advancing the quest for personalized treatments targeting psychological symptoms in individuals with sleep disorders.

Contribution of childhood lead exposure to psychopathology in the US population over the past 75 years.

More than half of the current US population was exposed to adverse lead levels in childhood as a result of lead's past use in gasoline. The total contribution of childhood lead exposures to US-population mental health and personality has yet to be evaluated. We combined serial, cross-sectional blood-lead level (BLL) data from National Health and Nutrition Examination Surveys (NHANES) with historic leaded-gasoline data to estimate US childhood BLLs from 1940 to 2015 and calculate population mental-health symptom elevations from known lead-psychopathology associations. We utilized five outcomes: (1) General Psychopathology "points",reflecting an individual's liability to overall mental disorder, scaled to match IQ scores (M = 100, SD = 15); (2) Symptoms of Internalizing disorders (anxiety and depression) and Attention-deficit/Hyperactivity Disorder (AD/HD), both z-scored (M = 0, SD = 1); and (3) Differences in the personality traits of Neuroticism and Conscientiousness (M = 0, SD = 1). Assuming that published lead-psychopathology associations are causal and not purely correlational: We estimate that by 2015, the US population had gained 602-million General Psychopathology factor points because of exposure arising from leaded gasoline, reflecting a 0.13-standard-deviation increase in overall liability to mental illness in the population and an estimated 151 million excess mental disorders attributable to lead exposure. Investigation of specific disorder-domain symptoms identified a 0.64-standard-deviation increase in population-level Internalizing symptoms and a 0.42-standard-deviation increase in AD/HD symptoms. Population-level Neuroticism increased by 0.14 standard deviations and Conscientiousness decreased by 0.20 standard deviations. Lead-associated mental health and personality differences were most pronounced for cohorts born from 1966 through 1986 (Generation X). A significant burden of mental illness symptomatology and disadvantageous personality differences can be attributed to US children's exposure to lead over the past 75 years. Lead's potential contribution to psychiatry, medicine, and children's health may be larger than previously assumed.

Personality traits and other factors associated with psychotropic medication non-adherence at two hospitals in Uganda. A cross-sectional study

Mental illnesses, like other chronic illnesses, require medications for both immediate, short term and long-term treatment. Medication adherence is the first and most important factor for better treatment outcomes. Non-adherence to psychotropic medications is associated with relapse, readmission, and early death. Psychological factors are among the common factors associated with non-adherence. Specific personality traits moderate the beliefs about medication that influence non-adherence to medications. Sociodemographic and clinical factors can also influence non-adherence to psychotropic medications. Non-adherence to psychotropic medications is high in Africa. Still, to the best of our knowledge, there is a lack of studies on the level of psychotropic medication non-adherence and associated personality traits. The aim was to determine the prevalence of psychotropic medication non-adherence and associated personality traits among people with mental illness attending Kampala International University Teaching Hospital (KIU-TH) and Jinja Regional Referral Hospital (JRRH). This study employed a hospital-based cross-sectional design. 396 adult patients suffering from mental illness were collected from KIU-TH and JRRH outpatient clinics. Medication adherence was assessed using the Medication Adherence Rating Scale (MARS) while personality traits were assessed by the short form of the Big Five Inventory (Ten Items Personality Inventory). In our study, we first assessed sociodemographic and clinical factors influencing psychotropic medication non-adherence (confounders). A questionnaire with sociodemographic information was also used. Logistic regression was used to assess personality traits and other factors associated with psychotropic medication non-adherence. The majority of the study participants were males (59.1%), from rural areas (74.2%), with a secondary educational level (47.5%) and unemployed (44.9%). The prevalence of psychotropic medication was 46.21%. Poor family support (aOR = 6.915, CI = 3.679–12.998, P&lt;0.001), belief in witchcraft/sorcery (aOR = 2.959, CI = 1.488–5.884, P = 0.002), experiencing side effects (aOR = 2.257, CI = 1.326–3.843, P = 0.003), and substance use (aOR = 4.174, CI = 2.121–8.214, P&lt;0.001) were factors significantly associated with psychotropic medication non-adherence. The personality traits significantly associated with psychotropic medication non-adherence after controlling for the confounders were neuroticism (aOR = 7.424, CI = 3.890–14.168, P&lt;0.001) and agreeableness (aOR = 0.062, CI = 0.024–0.160, P&lt;0.001). In this study, medication non-adherence was high. Non-adherent patients were more likely to have predominant neuroticism personality traits. Non-adherence to medication was shown to be less common in individuals with agreeableness personality traits. Other factors associated with psychotropic medication non-adherence were poor social support, witchcraft beliefs, the presence of side effects, and substance use. Specific interventions should be done for patients with a high risk of being non-adherent to psychotropic medications, with the involvement of all stakeholders including caregivers, parents, tutors, and trustees.

The Relationship between Personality Traits and Addiction Tendency: The Mediating Role of Emotion Regulation Strategies

Aim: The aim of this study was to determine the relationship between personality traits and the tendency to addiction with the mediation of emotion regulation in Yazd University students. Methods: The study employed descriptive-correlational methodology. The population included all students of Yazd University in the first half of the 1401–1402 academic year, from whom 210 people were selected through available sampling method. Data was collected using the Cognitive Emotion Regulation Questionnaire (2001), Five Personality Factors NEO short form (1992), and Addiction Tendency (1992). The data were analyzed through path analysis using SPSS software (version 25) and PLS version 3. Results: The proposed model had a good fit. The findings indicated that the direct effect of neurotic personality traits on addiction tendency (ρ=0.00, β=0.30) was positive and significant, while the direct effects of extraverted personality traits (ρ=0.00, β=-0.32) and conscientiousness (ρ=0.00, β=-0.24) on addiction tendency were negative and significant. However, no significant direct effect was found between the agreeableness personality trait (ρ=0.09, β=-0.11) and addiction tendency. Additionally, the direct effect of neuroticism on maladaptive strategies (ρ=0.00, β=0.47) and the direct effects of extraversion (ρ=0.00, β=0.43) and conscientiousness (ρ=0.01, β=0.18) on adaptive strategies were significant. While there was a significant relationship between maladaptive strategies and addiction tendency (ρ=0.00, β=0.17), the direct effect of adaptive strategies on addiction tendency (ρ=0.06, β=0.12) was not significant. Furthermore, the indirect path of the neurotic personality trait on addiction tendency through the mediating role of maladaptive strategies (ρ = 0.00, β = 0.09) was significant. Conclusion: The results showed that personality trait as an independent variable and emotion regulation as a mediating variable is an important factor in predicting the tendency to addiction, which can be useful in planning preventive interventions and training workshops in the field of managing and controlling emotion regulation strategies.

Suicidal behavior in ADHD: the role of comorbidity, psychosocial adversity, personality and genetic factors.

Adult ADHD is associated with increased risk for suicide attempts, as indicated by investigations of population- and community-based cohorts. However, there is little data regarding suicide attempts in a clinical setting. To address this, we used a comprehensively phenotyped clinical adult ADHD (aADHD) cohort to assess to which extent comorbidity, psychosocial adversity, personality, and ADHD symptoms contribute to suicidal behavior in ADHD. Furthermore, we investigated a triallelic variation in the serotonin transporter-linked polymorphic region (5-HTTLPR), which has previously been associated with suicidal behavior. Depression, substance use, eating, and posttraumatic stress disorders were independently associated with past suicide attempts, whereas anxiety, somatoform, and obsessive-compulsive spectrum disorders showed no association. Pulmonary diseases also showed an association with suicidal behavior. Psychosocial factors including occupational status, marital status/living situation, externalizing behavior and psychiatric family history were strongly associated with past suicide attempts. ADHD symptoms of inattention and hyperactivity/impulsivity were not associated with past suicide attempts after adjustment for psychiatric comorbidity and psychosocial adversity. However, the personality trait of neuroticism fully mediated the association between depression and suicidal behavior. 5-HTTLPR was not associated with suicidal behavior, but an interaction with ADHD symptoms and subtype was found. Our data suggest that psychiatric comorbidity and psychosocial adversity are key factors for suicidal behavior in aADHD, with neuroticism representing a critical mediator of the association between depression and suicidality. Further research, preferentially with longitudinal study designs is needed to better understand causal factors for suicidal behavior to enable effective preventive action.

Личностные особенности и самоотношение лиц с психогенным перееданием

&lt;p&gt;&lt;strong&gt;Background. &lt;/strong&gt;According to the World Health Organization, in 2023, excess weight was observed in 2,5 billion adults aged 18 and older. Individuals with obesity suffer from chronic somatic diseases, face social isolation. Understanding the psychological and social factors behind weight gain allows us to develop effective programs to prevent obesity and help people lose weight. &lt;strong&gt;Objective.&lt;/strong&gt; The aim of this study is to analyze the analysis of personality traits and self-attitudes in individuals with excess body mass. &lt;strong&gt;Hypothesis.&lt;/strong&gt; Individuals with psychogenic overeating have an increased level of neuroticism, perfectionism and internal conflict, as well as reduced self-acceptance. &lt;strong&gt;Materials and methods. &lt;/strong&gt;101 people with eating disorders were examined. All respondents were divided into three groups according to the criterion of body mass index (BMI): 1 group - 33 people with pre-obesity and obesity of the first degree, average age 40&amp;plusmn;13 years; 2 group - 20 people with second degree obesity, average age 35&amp;plusmn;12 years; group 3 - 48 people with third degree obesity, average age 44&amp;plusmn;10 years. The socio-demographic characteristics of the respondents and medical documentation data were studied. Psychological testing was conducted using: the KON-2006 Neurotic Personality Questionnaire to assess neurotic personality traits, the Multidimensional Perfectionism Scale (MPS), a questionnaire to study self-esteem. &lt;strong&gt;Results. &lt;/strong&gt;Analysis of the study results showed a high level of neuroticism for individuals with different BMIs in all groups, the violation of self-attitude is primarily associated with the perception of one's appearance, perfectionism is not a personal feature associated with psychogenic overeating. Low self-esteem of external data is combined in them with narcissism and a positive assessment of their personal characteristics. &lt;strong&gt;Conclusions. &lt;/strong&gt;The results obtained can be used to develop and improve the effectiveness of psychological weight correction programs for psychogenic overeating, based on taking into account the personal factors of obesity.&lt;/p&gt;

The Relationship Between Big Five Personality Traits and Academic Performance of Asian Medical Students

Introduction : Personality traits have been shown to influence the individual’s critical thinking, learning strategies, and motivation, resulting in the overall student’s academic performance. Academic performance is an important factor among medical students to ensure their success in long-term medical education, training and work performance as medical doctors. This study aims to evaluate the relationship between personality traits and academic performance among medical students. Methods : The study was conducted among preclinical medical students from the Medical Schools of Pelita Harapan University, Indonesia. The personality traits were assessed using the NEO Five-Factor Inventory-3 (NEO-FFI-3), which consists of 60 items assessing the five personality traits (neuroticism, extraversion, openness, agreeableness, and conscientiousness). The academic performance was evaluated using the cumulative grade point average (CGPA) score. Results : A total of 224 participants were included in this study. The mean age of the participants was 19.8 years old (SD±1.3). Neuroticism was the predominant personality trait among medical students and was found to be negatively associated with CGPA in univariable and multivariable analyses (p&lt;0.05). Conclusion : This study reveals that neuroticism personality traits are prevalent among preclinical medical students and adversely affect their academic performance. Understanding the general personality traits present among medical students and its relationship with academic performance can provide valuable input for further medical education programme development.

Personality Traits and Quality of Life Among Older Adults: The Chain Mediating Effects of Perceived Social Support and Positive Coping Styles

The pathways between personality traits and older adults’ quality of life (QOL) have been well studied. However, perceived social support and positive coping styles should not be ignored by older adults’ QOL. Hence, this study examines the chain mediating role of perceived social support and positive coping styles between personality traits and older adults’ QOL. In total, 230 older individuals (Mean age = 69.43, SD age = 7.23, age range from 60 to 93) participated in this study. All older people provided a rating of QOL and perceived social support, the Chinese Big Five personality, and positive coping styles. (1a) the five personality traits of older adults were significantly associated with QOL; (2b) perceived social support mediated the relationship between three personality traits (neuroticism, extraversion, and agreeableness) and QOL; (3c) positive coping styles played a mediator role in the personality traits (neuroticism, extraversion, and agreeableness) and QOL; (4d) perceived social support and positive coping styles had a significant chain mediating effect on the three dimensions of personality traits (neuroticism, extraversion, and agreeableness) and QOL. As mediating influences, social support and positive coping styles can be applied to efforts to promote QOL for older adults who share the personality traits of neuroticism, extraversion, and agreeableness.

The Impact of Parenting Styles of University Students' Parents on Parent-Child Relationships, and The Mediating Role of Neurotic Personality Traits

This paper aims to explore the influence of college students' parenting style on parent-child relationship and neurotic peopleWhether the lattice plays an intermediary role in it. Methods: Simple parenting style scale and parent-child relationship quantity were used. The questionnaire and the Big Five Personality Scale were used to investigate college students. Results: (1) Parental rearing of college students. There was a significant positive correlation between style and parent-child relationship (p&lt;0.01). Neurotic personality and parent-child relationship There was a significant positive correlation (p&lt;0.01) .Neurotic personality and parenting style existed A significant positive correlation. (4) There were gender differences in college students' parenting styles (t=2.351, p&lt;0.05). The score of male students' parenting style is slightly higher than that of college students' (5) Parenting style does not exist in the grade (6) The neurotic personality of college students is partly related to the parenting style and personal relationship Mediating effect.

Understanding Intensive Care Unit Family Caregivers' Vulnerability to Post-Traumatic Stress Disorder: The Impact of Neurotic Personality Traits, Emotional Suppression, and Perceptions of Unexpected Death.

Rationale: Family members of patients who die in an intensive care unit (ICU) are at heightened risk of post-traumatic stress disorder (PTSD) symptoms. Not all surrogates develop these symptoms and heterogeneity exists in PTSD symptom clusters. Objectives: The study tested a personality model of PTSD symptoms in bereaved family caregivers of ICU patients. It was hypothesized that family members endorsing higher levels of neurotic personality traits would report higher levels of PTSD symptom clusters and that these associations would be explained by tendencies to view the patient's death as unexpected and to cope by suppressing their emotions. Methods: Participants were family members of ICU patients at an urban, academic medical center who either died or were discharged to an inpatient hospice unit. Participants were contacted for participation at least six months after the patient's death. Participants completed measures of personality, emotion regulation, and PTSD symptoms. Data were analyzed using path analysis. Results: Approximately one-third (35%) of the sample of 162 caregivers endorsed at-risk levels of PTSD. Individuals reporting higher levels of neurotic personality traits reported more PTSD symptoms (r = 0.53, p < 0.001). Perceptions that the patient death was unexpected partially explained the association of neuroticism with the intrusive re-experiencing PTSD symptoms (B = 0.45, p = 0.031). In contrast, emotional suppression partially explained the association of neuroticism with avoidance (B = 0.70, p = 0.010) and hyperarousal symptom clusters (B = 0.37, p = 0.041). Conclusions: Family vulnerability to PTSD after an ICU death can be conceptualized based on neurotic personality traits. Tendencies to view the patient's death as unexpected may contribute to intrusive thoughts and memories of the ICU experience. Individuals may avoid reminders and remain at heightened levels of arousal when they suppress their emotional experiences. Key Message: Family members who experience the death of a loved one following ICU treatment are vulnerable to PTSD symptoms. These reactions to ICU-related losses may be shaped by family members' personalities, expectations, and emotion regulation styles. Understanding these characteristics could inform family screening and intervention efforts in the ICU.

Exploring the role of personality traits as mediators of mental health in Pakistani commuters.

To investigate how resilience mediates the relationship of personality factors with depression and aggression among daily commuters in an urban setting. The correlational study was conducted at Lahore Pakistan from October 2019 and March 2020, and comprised male subjects aged 20-49 years who were employed at private schools, offices and banks, and commuted on a daily basis. Data was collected using the International Personality Item Pool, Brief Resilience Scale, Siddiqui Shah Depression Scale and the Clinical Anger Scale. Data was analysed using analysis of moment structure version 24. Sample size for the current study is 187 (Male participants) were aged 19-29 years. Resilience had a significant negative mediating effect between depression (-0.14*) and neuroticism (-0.22*) personality traits, but was a non-significant mediator for other personality factors with respect to aggression and depression. Resilience was found to be beneficial in addressing aggression and depression among daily commuters.

Who benefits from virtual collaboration? The interplay of team member expertness and Big Five personality traits

This research applies and integrates transactive memory systems (TMS) theory and the Big Five personality traits model to investigate the performance dynamics of dyadic teams engaged in virtual collaborative problem-solving (CPS). Specifically, this study examines how the personal attributes of team members, including their expertness and Big Five personality traits (extraversion, agreeableness, openness, conscientiousness, and neuroticism), as well as the resultant diversity in expertness and Big Five personality traits within teams, influence both team-level and individual-level performance gain from virtual collaboration. Studying 377 dyadic teams composed of 754 individuals working on an online collaborative intellective task, this research found that dyads with high expertness diversity had greater performance gain from virtual collaboration than dyads with low expertness diversity. Further, dyads, where both members scored low on agreeableness, showed the most significant improvement in team performance. At the individual level, a team member who had a low expertness level but was paired with a high-expertness teammate demonstrated the greatest performance gain from virtual collaboration. The integration of TMS theory and the Big Five personality traits model provides a richer and more nuanced understanding of how individual attributes and team dynamics contribute to successful virtual CPS outcomes.

B - 14 NEO Personality Inventory-Revised (NEO-PI-R) Domains Compared across BSNIP-2 Biotypes for Psychosis Spectrum Disorders

Abstract Objective The NEO Personality Inventory-Revised (NEO-PI-R) is commonly used to assess the Big Five personality traits: Neuroticism (N), Extroversion (E), Openness (O), Conscientiousness (C), and Agreeableness (A). This study compared NEO-PI-R personality factor composite scores across novel biological and neuropsychological characterizations of psychotic spectrum disorders (“biotypes”) derived by the Bipolar Schizophrenia Network for Intermediate Phenotypes (B-SNIP) consortium. Understanding personality patterns in more specific characterizations of psychotic spectrum disorders may shed light on behavioral patterns, including help-seeking in psychosis spectrum disorders. Methods Participants were 1086 individuals with a psychosis spectrum disorder grouped by biotype rather than DSM diagnosis who completed the NEO-PI-R. Results One-way ANOVAs were used to assess potential biotype group differences regarding NEO-PI-R traits. Post-hoc comparisons revealed that healthy controls endorsed more extroverted, agreeable, conscientious and less neurotic personality traits compared to the biotypes collectively. Traits of openness differentiated biotypes such that Biotype 3 endorsed more openness than Biotypes 1, 2 and Healthy Controls. Conclusions In addition to normal range cognitive abilities, less symptomatology, and fewer electrophysiological/imaging abnormalities, the present findings indicate that the Biotype 3 group endorsed more openness than the other patient groups. Like the Biotype 1 and 2 groups, internalizing symptomatology was present in the Biotype 3 group (less agreeableness, more neuroticism, less conscientiousness). Increased executive functioning, flexibility, problem-solving, and/or self-monitoring could be important factors contributing to the greater openness of the Biotype 3 group.

Exploring the effect of demographic characteristics and personality traits on attitude toward AI-assisted second language learning among Chinese college students: A multiple regression analysis

Previous research underscores the pivotal role of AI in advancing second language (L2) learning, yet gaps persist in understanding how individual differences shape L2 learners’ perceptions of AI resources. Addressing this gap, this study explored the impact of demographic characteristics (age and gender) and personality traits (extroversion, agreeableness, conscientiousness, neuroticism, and openness) on attitude toward AI-assisted L2 learning. This attitude encompasses the opinions, feelings, and beliefs individuals hold about using AI as a tool to facilitate L2 learning. Data were collected from 493 L2 learners enrolled in Chinese colleges through an online questionnaire using two validated scales. Through SPSS 26, descriptive statistics indicated a moderately high positive attitude among students. Multiple regression analyses revealed that older students and females exhibited more favorable attitude compared to their younger and male counterparts, respectively. Additionally, personality traits—excluding agreeableness—significantly influenced attitude. Besides, extroversion and neuroticism negatively predicted attitude, whereas conscientiousness and openness had positive predictive effects. Moreover, this study discusses theoretical implications and offers educational insights while suggesting avenues for future research.