The effects of big five personality traits on sub-health in a Chinese young adults: A moderated mediation model.

BACKGROUND: Sub-health can have an impact on the physical condition of the youth adults, and this study aimed to investigate the influencing factors of sub-health related to the Big Five personality in the Chinese youth adults. METHODS: A multi-stage random sampling method was used to survey young adults. A moderated mediation analysis was conducted to investigate how overall sleep quality and family health influenced the relationship between youth with different personalities and sub-health. RESULTS: A total of 6165 young adults were included in this study. The results of the mediation analyses indicated that sleep quality partially mediated the relationship between neurotic, extraversion, agreeableness, and conscientiousness of young adults and sub-health. Family health played a moderating role in the sleep quality of agreeableness young adults. LIMITATIONS: The cross-sectional study limits conclusions about causal relationships between factors. CONCLUSION: Family health and sleep quality can influence sub-health in the Chinese youth adults with different personality traits.

Social functioning predicts individual changes in EEG microstates following intranasal oxytocin administration: A double-blind, cross-over randomized clinical trial.

Oxytocin (OXT) modulates social behaviors. However, the administration of exogenous OXT in humans produces inconsistent behavioral changes, affecting future consideration of OXT as a treatment for autism and other disorders with social symptoms. Inter-individual variability in social functioning traits might play a key role in how OXT changes brain activity and, therefore, behavior. Here, we investigated if inter-individual variability might dictate how single-dose intranasal OXT administration (IN-OXT) changes spontaneous neural activity during the eyes-open resting state. We used a double-blinded, randomized, placebo-controlled, cross-over design on 30 typically developing young adult men to investigate the dynamics of EEG microstates corresponding to activity in defined neural networks. We confirmed previous reports that, at the group level, IN-OXT increases the representation of the attention and salience microstates. Furthermore, we identified a decreased representation of microstates associated with the default mode network. Using multivariate partial least square statistical analysis, we found that social functioning traits associated with IN-OXT-induced changes in microstate dynamics in specific spectral bands. Correlation analysis further revealed that the higher the social functioning, the more IN-OXT increased the appearance of the visual network-associated microstate, and suppressed the appearance of a default mode network-related microstate. The lower the social functioning, the more IN-OXT increases the appearance of the salience microstate. The effects we report on the salience microstate support the hypothesis that OXT regulates behavior by enhancing social salience. Moreover, our findings indicate that social functioning traits modulate responses to IN-OXT and could partially explain the inconsistent reports on IN-OXT effects.

Diurnal cortisol measures are distinctively associated with evaluation of neuroticism by self and others.

The link between neuroticism and the various indicators of daily cortisol fluctuations is frequently noted to be inconsistent or lacking in strength. The current study aimed to investigate the predictive capacity of both self-assessment and external evaluations of neuroticism, along with their interaction, on multiple indices of diurnal cortisol variations. This research involved the assessment of neuroticism using self-report and external evaluations among 166 working individuals, coupled with the collection of saliva samples over two consecutive workdays. Employing multilevel response surface analysis, our findings indicated that self-reported neuroticism exhibited a stronger association with cortisol indices compared to external evaluations. Additionally, the level of alignment between self-assessment and external ratings of neuroticism specifically impacted the prediction of estimates of daily cortisol production. We discuss the theoretical and practical implications of these results.

Personality changes related to presence and treatment of substance use (disorders): a systematic review.

Heavy substance use (SU) and substance use disorders (SUD) have complex etiologies and often severe consequences. Certain personality traits have been associated with an increased risk for SU(D), but far less is known about personality changes related to SU(D). This review aims to synthesize the existing literature on this research question. A systematic literature search was conducted from November 2022 to February 2023 in PubMed, EbscoHost, and Web of Science. Peer-reviewed original papers on SU(D)-related personality changes were included. Of 55 included studies, 38 were observational population-based studies and 17 were intervention studies. Overall, personality and SU measures, samples, study designs, and statistical approaches were highly heterogenous. In observational studies, higher SU was most consistently related to increases in impulsivity-related traits and (less so) neuroticism, while interventions in the context of SU(D) were mostly associated with increases in conscientiousness and self-efficacy and lasting decreases in neuroticism. Findings for traits related to extraversion, openness, conscientiousness, and agreeableness were mixed and depended on SU measure and age. Studies on bidirectional associations suggest that personality and SU(D) both influence each other over time. Due to their strong association with SU(D), impulsivity-related traits may be important target points for interventions. Future work may investigate the mechanisms underlying personality changes related to SU(D), distinguishing substance-specific effects from general SU(D)-related processes like withdrawal, craving, and loss of control. Furthermore, more research is needed to examine whether SU(D)-related personality changes vary by developmental stage and clinical features (e.g. initial use, onset, remission, and relapse).

A survey examining the relationship between burnout, professional empowerment, and personality traits of midwives of an inner London NHS Trust.

INTRODUCTION: Besides the well-known negative effects on physical and psychological well-being, burnout has been associated with high attrition and absenteeism in the midwifery profession. This study explores whether burnout in midwifery can be explained by the midwives' type of personality and the sense of empowerment they experience at work. Moreover, the study identifies areas of improvement in relation to these topics and elements that can be conducive to strengthening the midwifery workforce. METHODS: A cross-sectional exploratory study design was used, including an online survey completed by 120 midwives working for an NHS Trust in London. The response rate was 24%. Three validated questionnaires were used: the Copenhagen Burnout Inventory (CBI), the Perception of Empowerment in Midwifery Scale (PEMS), and the Big Five Personality Trait Short Questionnaire (BFPTSQ). RESULTS: A multiple linear regression analysis indicated empowerment and personality traits are significant predictors of levels of burnout. Furthermore, emotional stability was shown to partially mediate the relationship between empowerment and burnout. The study also examined the midwifery burnout levels of this NHS Trust, which were found to be significantly high and similar to a previous study conducted by the Royal College of Midwives. CONCLUSIONS: The empowerment experienced by midwives and their personality traits significantly predict the levels of burnout in the midwifery workforce. Only empowerment and emotional stability were significant contributors to the regression model. Multiple strategies can be implemented to support midwives in these two areas. These interventions could also be of great help to reinforce the role of the midwife, making it more appealing to society and, in particular, younger generations with an interest in human-orientated professions.

Childhood maltreatment and personality disorders in adolescents and adults with psychotic or non-psychotic disorders.

Introduction: While the attention to personality disorders (PD) and childhood maltreatment (CM) has grown in recent years, there remains limited understanding of the prevalence and distinctions of PD and CM in clinical populations of Chinese adolescents in comparison to adults. Methods: A total of 1,417 participants were consecutively sampled from patients diagnosed with either psychotic or non-psychotic disorders in the psychiatric and psycho-counseling clinics at Shanghai Mental Health Center. The participants were categorized into two groups based on their age: adolescents (aged 15-21 years) and adults (aged 22-35 years). PDs were evaluated using a self-reported personality diagnostic questionnaire and a structured clinical interview, while CMs were assessed using the Chinese version of the Child Trauma Questionnaire Short Form. Results: When comparing self-reported PD traits and CM between adolescents and adults, differences emerge. Adolescents, particularly in the psychotic disorder group, exhibit more pronounced schizotypal PD traits (p=0.029), and this pattern extends to non-psychotic disorders (p<0.001). Adolescents in the non-psychotic disorder group also report higher levels of emotional abuse (p=0.014), with a notable trend in physical abuse experiences compared to adults (p=0.057). Furthermore, the most prevalent PDs in the clinical sample are avoidant, borderline, and obsessive-compulsive PDs. Among patients with psychotic disorders, adolescents exhibit higher rates of schizoid, schizotypal, and obsessive-compulsive PDs compared to adults. Logistic regression analyses highlight distinct predictors for psychotic and non-psychotic disorders in adolescents and adults. Discussion: The findings emphasize distinct differences in PDs and CMs between adolescent and adult groups, shedding light on their potential roles in psychotic and non-psychotic disorders.

Associations between Sleep Disturbances, Personality Traits and Self-Regulation in a Sample of Healthy Adults.

Background: Scientific evidence and everyday experience show that sleep disturbances and self-regulation as a proxy of stress reactivity are linked. Particular personality traits such as neuroticism, internalizing and externalizing problems are also associated with sleep disturbances. Here, we combined self-regulation and personality traits and associated these variables with subjective sleep disturbances. Methods: A total of 846 adults (mean age: 33.7 years; 78.7% females) completed questionnaires covering sleep disturbances, self-regulation and personality traits. Results: Higher scores for sleep disturbances were associated with higher scores for externalization, internalization, and instability and with lower scores for stability (all trait variables) and with poorer self-regulation (state variable). The regression model showed that higher scores for externalization and internalization (traits), and lower scores for self-regulation (state) predicted higher scores for sleep disturbance. Next, self-regulation had both a direct effect on sleep disturbance, and an indirect effect via personality traits. Conclusions: Sleep disturbances were related to both state (i.e., self-regulation) and trait (e.g., internalization and instability) dimensions. The current data analysis leapfrogs the state-trait dichotomy discussion and reconciles the state-and-trait approach in the prediction of poor sleep, though self-regulation appeared to have both direct and indirect effects on sleep disturbances.

Five-factor model personality traits, exclusive breastfeeding, and self-efficacy: a mediational analysis.

BACKGROUND: Despite the World Health Organization's (WHO) emphasis on exclusive breastfeeding, the documents show a declining trend worldwide. Studies assert that the mother's personality traits appear to have an impact on this issue. This study aimed to investigate the potential influence of personality traits on exclusive breastfeeding, which might be channeled by self-efficacy as a mediator variable. METHODS: Data were analyzed from the cross-sectional study. The exclusive breastfeeding scale, the breastfeeding self-efficacy questionnaire, and the Five-Factor Model questionnaire (as follows: neuroticism, extraversion, openness experience, agreeableness, and conscientiousness) were completed by120 Iranian volunteer mothers with an infant aged 6-12 months referred to health centers in Shiraz (a major city in southern Iran) between May to December 2019. The structural equation modeling (SEM) approach was used to obtain the direct and indirect effects of personality traits and self-efficacy on exclusive breastfeeding. RESULTS: The study showed the significant direct effect of some personality traits (agreeableness, extraversion, and consciousness) and self-efficacy on exclusive breastfeeding. The indirect effect of extraversion on exclusive breastfeeding through self-efficacy was also obtained from the result of SEM analysis. The model fit the data satisfactorily, according to the fit indices criteria extracted from the mediational analysis. CONCLUSIONS: Self-efficacy appears to be a significant predictor of exclusive breastfeeding. Therefore, exclusive breastfeeding could be enhanced by safe education in pregnancy, reinforcing the self-efficacy of pregnant women and considering their personality traits.

Psychosocial Functioning of Individuals at Risk of Developing Compulsive Buying Disorder.

(1) Background: This study aimed to establish the connection between depressiveness, workaholism, eating disorders, and personality traits, according to the five-point model called the Big Five, in women with a risk of compulsive buying disorder. (2) Methods: The study was conducted on 556 Polish women from the West Pomeranian Voivodeship. The study employed the diagnostic survey method using a questionnaire technique including Personality Inventory NEO-FFI, the Buying Behaviour Scale, the Beck Depression Inventory I-II, the Three-Factor Eating Questionnaire, and a self-questionnaire. (3) Results: The analysis revealed the risk of compulsive buying being accompanied by a higher median score for depressiveness, neuroticism, Cognitive Restraint of Eating, Uncontrolled Eating, and a risk of workaholism. A lower score in the respondents in the compulsive buying risk group was observed in an assessment of agreeableness and conscientiousness. Work addiction was exhibited by 26% of people with compulsive buying disorder vs. 12% of people without it. (4) Conclusion: This study found that a high risk of compulsive buying disorder is accompanied by a high risk of moderate depressiveness, neuroticism, Cognitive Restraint of Eating, Uncontrolled Eating, and workaholism. It also confirmed the view that compulsive buying is a behavioural addiction which is a consequence of ineffective coping and being dissatisfied with one's social life.

Interpersonal Problem Profiles of Personality and Psychopathology Constructs in Chinese Undergraduates and Offenders.

The interpersonal problem circumplex is extensively used in the field as an assessment framework for understanding the interpersonal implications of a range of personality and psychopathology constructs. The vast majority of this large literature has been conducted in Western convenience and clinical samples. We computed interpersonal problem structural summary parameters for a range of personality and psychopathology variables in two Chinese offender samples (N = 424 and N = 555) and one undergraduate sample (N = 511) to test how well findings from Western samples generalize to Chinese undergraduates and offenders. The results showed that findings in Western samples generalized reasonably well to Chinese young adult and forensic contexts, although the interpersonal profiles of external variables were less specific in Chinese samples. Compared with undergraduates, interpersonal distress has stronger associations with the mental health of offenders. This study further elaborates the interpersonal correlates of individual differences in personality and psychopathology across cultures and assessment contexts, and it also extends the literature examining interpersonal problems in forensic settings.

Mental toughness in adolescents: bridging family relationships and depression across personality traits.

BACKGROUND: Adolescence is a pivotal stage vulnerable to mental health issues like anxiety and depression. While family relationships, mental toughness, and personality traits are known to impact adolescent mental health, their interactive and moderating roles are not fully understood. AIM: This study aims to investigate the mediating role of mental toughness in the relationship between family relationships and depression among high school students, and to examine the varying impacts of personality traits on this mediation. METHOD: A cross-sectional study was conducted on a sample of 734 adolescents. Participants completed measures assessing family relationships, mental toughness, personality traits, and mental health outcomes (depression). Latent Profile Analysis, Multiple Regression Analysis, and Structural Equation Modeling, to investigate these relationships. RESULTS: The study found that mental toughness significantly mediates the relationship between family relationships and depression. Notably, this mediating effect varied between personality type; it was more pronounced in the moderate-reserved type compared to the proactive-engaged type. LPA identified two distinct personality types of students based on their personality traits, with differential patterns of family relationships, mental toughness, and depression. Multiple regression analysis indicated that character and adaptability, components of mental toughness, were significant negative predictors of depression. CONCLUSION: The study contributes to understanding the dynamics of adolescent mental health, particularly in the context of Chinese high school students. It underscores the importance of considering family dynamics, personality traits, and mental toughness in developing effective mental health interventions for adolescents.

The Relationship Between Unprofessional Social Media Posts and Personality Traits Made by Physician Assistant Students.

OBJECTIVES: Research has indicated that physician assistant (PA) students use social media in their medical education; however, research is scant on whether PA students use social media unprofessionally. This study aimed to determine if PA students badmouth others or post pictures or comments depicting substance use and whether a relationship exists between personality and unprofessional posts. METHODS: PA Program Directors were emailed and asked to disseminate an anonymous survey to their students. The survey included descriptive questions, questions regarding badmouthing and substance use posts, and the Mini-International Personality Item Pool. Data analysis included descriptive statistics, Spearman's correlation coefficient, and Mann-Whitney U with p < .05 indicating significance. RESULTS: Recruitment resulted in n = 497 participants. Clinical year students made significantly more alcohol-related posts than didactic students (p = .01) and were significantly less conscientious (p ≤ .01). Didactic students badmouthed professors significantly more than clinical year students (p < .05). Females made significantly more alcohol-related posts (p ≤ .01); however, males badmouthed friends more (p = .02). A statistically significant relationship was identified between extraversion and all types of badmouthing (p < .05), alcohol-related (p < .001), and recreational drug (p = .02) posts, and between neuroticism and badmouthing professors (p = .02); conversely there was a significant negative correlation between conscientiousness and badmouthing professors (p = .01). CONCLUSION: Medical educational programs should address professionalism concerning social media with a program policy to encourage a professional and ethical digital profile.

Differential Behavioral Pathways Linking Personality to Leadership Emergence and Effectiveness in Groups.

This study integrates leadership process models with process models of personality and behavioral personality science to examine the behavioral-perceptual pathways that explain interpersonal personality traits' divergent relation to group leadership evaluations. We applied data from an online group interaction study (N = 364) alternately assigning participants as leaders conducting brief tasks. We used four variable types to build the pathways in multiple mediator models: (a) Self-reported personality traits, (b) video recordings of expressed interpersonal behaviors coded by 6 trained raters, (c) interpersonal impressions, and (d) mutual evaluations of leadership emergence/effectiveness. We find interpersonal big five traits to differently relate to the two leadership outcomes via the behavioral-perceptual pathways: Extraversion was more important to leadership emergence due to impressions of assertiveness evoked by task-focused behavior being strongly valued. Agreeableness/emotional stability were more important to leadership effectiveness due to impressions of trustworthiness/calmness evoked by member-focused/calm behavior being stronger valued.

Personality Traits, Ideology, and Attitudes Toward LGBT People: A Scoping Review.

This scoping review investigates the existing literature regarding personality traits, ideology, gender roles, and attitudes toward LGBT people. The review was conducted through PubMed and Web of Science databases. After establishing inclusion- and exclusion criteria, 12 studies published between 2013 and 2023 were reviewed, three themes (personality traits, gender roles and differences, and political ideology) were identified through thematic analysis. Several of the studies reported a relation between the personality traits Openness to Experience, Agreeableness and Conscientiousness, and homo- and transnegative attitudes. In particular, lower levels of Agreeableness, high levels of Conscientiousness, and lower levels of Extraversion were related to prejudice. The Dark Triad, especially the antagonistic traits Psychopathy and Machiavellianism, had a strong association with homo- and transnegativity. Multiple studies showed a connection between negative attitudes and ideological views. Especially right-wing authoritarianism (RWA) and social dominance orientation (SDO) were strong predictors of negative attitudes toward LGBT people. The majority of the studies also reported a significant gender difference in attitudes, with men being more prone to exhibit prejudice toward LGBT people than women. There are practical implications of this review relating to interventions which may target the prevention of homo and trans-negative attitudes, promoting inclusion and integration.

Personality assessment in nursing home residents with mental and physical multimorbidity: two informant perspectives.

OBJECTIVES: In older patients with mental and physical multimorbidity (MPM), personality assessment is highly complex. Our aim was to examine personality traits in this population using the Hetero-Anamnestic Personality questionnaire (HAP), and to compare the premorbid perspective of patients' relatives (HAP) with the present-time perspective of nursing staff (HAP-t). DESIGN: Cross-sectional. SETTING: Dutch gerontopsychiatric nursing home (GP-NH) units. PARTICIPANTS: Totally, 142 GP-NH residents with MPM (excluding dementia). MEASUREMENTS: NH norm data of the HAP were used to identify clinically relevant premorbid traits. Linear mixed models estimated the differences between HAP and HAP-t trait scores (0-10). Agreement was quantified by intraclass correlation coefficients (ICCs). All HAP-HAP-t analyses were corrected for response tendency (RT) scores (-10-10). RESULTS: 78.4% of the patients had at least one premorbid maladaptive trait, and 62.2% had two or more. Most prevalent were: "disorderly" (30.3%), "unpredictable/impulsive" (29.1%) and "vulnerable" (27.3%) behavior. The RT of relatives appeared significantly more positive than that of nursing staff (+1.8, 95% CI 0.6-2.9, p = 0.002). After RT correction, the traits "vulnerable", "perfectionist" and "unpredictable/impulsive" behavior scored higher on the HAP than HAP-t (respectively +1.2, 95% CI 0.6-1.7, p < 0.001; +2.1, 95% CI 1.3-2.8, p < 0.001; +0.6, 95% CI 0.1-1.1, p = 0.013), while "rigid" behavior scored lower (-0.7, 95% CI -1.3 to -0.03, p = 0.042). Adjusted ICCs ranged from 0.15 to 0.58. CONCLUSIONS: Our study shows high percentages of premorbid maladaptive personality traits, which calls for attention on personality assessment in MPM NH residents. Results also indicate that the HAP and HAP-t questionnaires should not be used interchangeably for this patient group in clinical practice.

The personality traits with depression and suicidal ideation among Thai medical students: a university-based multiregional study.

BACKGROUND: The prevalence of depression in medical students was greater than in the general population. Knowing of predictive factors for depression among medical students is useful. The objectives of this study included the assessment of personality traits as well as the association between the personality traits and the presence of symptoms of depression, and suicidal ideation among medical students covering several regions of Thailand. METHODS: From April to July 2023, a cross-section study was conducted. The participants included first to sixth-year medical students studying at three Faculties of Medicine in Thailand; Prince of Songkla University; Ramathibodi Hospital, Mahidol University; and Chiang Mai University. Using the online process, the questionnaires were composed of three sections; demographic data; the International Personality Item Pool-NEO (IPIP-NEO), Thai version; and the Patient Health Questionnaire-9 (PHQ-9), Thai version. Demographics, personality traits, depression, and suicidal ideation were analyzed using descriptive statistics. The results were presented as frequency, mean, and standard deviation (SD) or median and interquartile range (IQR). The association between independent variables and the presence of depression was identified using binary logistic regression analysis, and the association with suicidal ideation was identified using ordinal logistic regression analysis. RESULTS: The 868 medical students participated in this study. Most of them were female (63.5%), Buddhist (82.0%), and first-year medical students (31.8%). The mean age (SD) was 20.8 (2.2) years, and the mean cumulative Grade Point Average (SD) was 3.5 (0.4). They reported the median (IQR) score of PHQ-9 as 6.0 (3.0-9.0), 238 participants (27.4%) presented with depression, and 138 (15.9%) participants reported suicidal ideation. According to the IPIP-NEO, participants with depression or suicidal ideation had higher Neuroticism scores and lower Extraversion, Agreeableness, and Conscientiousness scores compared to those without such issues. An increase in the Neuroticism score was linked to higher odds of depression, while an increase in the Conscientiousness score was associated with lower odds of depression. Suicidal ideation significantly increased with higher Neuroticism scores and the presence of a psychiatric illness. CONCLUSIONS: More than a quarter of Thai medical students reported depression. A higher Neuroticism and lower Extraversion, Agreeableness, and Conscientiousness scores related to depression. Therefore, medical schools may benefit from knowing medical students' personality traits, to identify coping mechanisms and predict those at a higher risk of developing depression in the future.

Future Anxiety in Young Spanish Adults: Psychometric Properties of the Dark Future Scale / Ansiedad Futura en Adultos Jóvenes Españoles: Propiedades Psicométricas de la Dark Future Scale

Background/Objective: The Dark Future Scale (DFS) is a self-report instrument which assesses the tendency to think about the future with anxiety, fear, and uncertainty. Although it has been applied in different populations, instrumental studies are scarce, and there is no validated Spanish version. The aim was therefore to develop a Spanish version of the scale (DFS-S) and to analyze its psychometric properties in a sample of young adults. Method: Participants were 1,019 individuals aged from 18 to 24 years. They completed the DFS-S and the IPIP-BFM-20. Validity evidence based on the internal structure, including measurement invariance across gender, as well as on relationships with personality traits was obtained. Reliability and gender differences in DFS-S scores were also examined. Results: Results supported a single-factor structure, χ2(5) = 10.79, CFI = .999, RMSEA = .034, SRMR = .016, that was invariant across gender. Reliability of test scores was satisfactory (ω = .92). In the correlation analysis, future anxiety showed a strong positive correlation with neuroticism (.42) and a moderate negative correlation with extraversion (-.25). Females scored higher than males on future anxiety. Conclusions: The DFS-S has satisfactory psychometric properties and it is an adequate tool for measuring future anxiety among young adults.(AU)

Antecedentes/Objetivo: La Dark Future Scale (DFS) evalúa la ten-dencia a pensar en el futuro con ansiedad, miedo e incertidumbre. Aunque ha sido usadaen diferentes poblaciones, los estudios instrumentales son es-casos y no hay una versión adaptada al español. El objetivo del estudio fue adaptarla al español (DFS-S) y analizar sus propiedades psicométricas en una muestra de adultos jóvenes. Método:Participaron 1.019 jóvenes entre 18 y 24 años. Completaron la DFS-S y el IPIP-BFM-20. Se analizan evidencias de validez basadas en la estructura interna, incluyendo la invarianza de me-dida según el género, y basadas en las relaciones con rasgos de personali-dad, así como análisis de la fiabilidad y de las diferencias de género. Resulta-dos:Los resultados apoyaron una estructura de un solo factor, χ2(5) = 10.79, CFI = .999, RMSEA = .034, SRMR = .016, con invarianza respecto al gé-nero, y con coeficiente de fiabilidad satisfactorio (ω= .92). Se encontró co-rrelación positiva fuerte entre ansiedad futura y neuroticismo (.42) y una correlación negativa moderada con extraversión (-.25). Las puntuaciones en ansiedad futura fueron mayores en las mujeres. Conclusiones:Los resultados muestran propiedades psicométricas satisfactorias delaDFS-S, siendo un instrumento adecuado para medir la ansiedad futura en adultos jóvenes.(AU)

Trait anxiety is associated with attentional brain networks.

Trait anxiety is a well-established risk factor for anxiety and depressive disorders, yet its neural correlates are not clearly understood. In this study, we investigated the neural correlates of trait anxiety in a large sample (n = 179) of individuals who completed the trait and state versions of the State-Trait Anxiety Inventory and underwent resting-state functional magnetic resonance imaging. We used independent component analysis to characterize individual resting-state networks (RSNs), and multiple regression analyses to assess the relationship between trait anxiety and intrinsic connectivity. Trait anxiety was significantly associated with intrinsic connectivity in different regions of three RSNs (dorsal attention network, default mode network, and auditory network) when controlling for state anxiety. These RSNs primarily support attentional processes. Notably, when state anxiety was not controlled for, a different pattern of results emerged, highlighting the importance of considering this factor in assessing the neural correlates of trait anxiety. Our findings suggest that trait anxiety is uniquely associated with resting-state brain connectivity in networks mainly supporting attentional processes. Moreover, controlling for state anxiety is crucial when assessing the neural correlates of trait anxiety. These insights may help refine current neurobiological models of anxiety and identify potential targets for neurobiologically-based interventions.

Depression and Personality Traits Across Adolescence-Within-Person Analyses of a Birth Cohort.

Depressive symptoms and personality traits covary in adolescents, but our understanding of the nature of this relation is limited. Whereas a predisposition explanation posits that specific personality traits increase the vulnerability for developing depression, a scar explanation proposes that depression may alter premorbid personality. Attempts to test these explanatory models have relied on analyses that conflate within-person changes and between-person differences, which limits the implications that can be drawn. Moreover, research on the early adolescent years is lacking. The present study therefore examined within-person associations between depressive symptoms and Big Five personality traits across ages 10 to 16. Children (n = 817; 49.9% boys) and parents from two birth cohorts in Trondheim, Norway, were assessed biennially with clinical interviews capturing symptoms of major depressive disorder and dysthymia, and self-reported Big Five personality traits. Analyses were conducted using a random intercept cross-lagged panel model, which accounts for all unmeasured time-invariant confounding effects. Increased Neuroticism predicted an increased number of depressive symptoms-and increased depressive symptoms predicted increased Neuroticism-across ages 10 to 14. Moreover, increased depressive symptoms forecast reduced Extraversion across ages 10 to 16, and reduced Conscientiousness from ages 12 to 14. Increases in Neuroticism may contribute to the development of depressive symptoms-in line with the predisposition model. As regards the scar model, depression may have an even wider impact on personality traits: increasing Neuroticism and reducing Extraversion and Conscientiousness. These effects may already be present in the earliest adolescent years.

Impacts of User Personality Traits on Their Contributions in Idea Implementation: A Moderated Mediation Model.

In the realm of open innovation, users have emerged as a significant external source of innovation that enterprises cannot afford to overlook. Implemented ideas play a pivotal role in driving the iterative innovation of products within enterprises. However, the existing literature still lacks an exploration of specific impact mechanisms on contributions in idea implementation. This study presents a model that delineates the impact of user personality traits on idea implementation contributions, drawing upon theories such as personality trait theory, user engagement perspective, and trait activation theory. Empirical research was carried out by utilizing user data obtained from the Chinese high-tech company Xiaomi's MIUI community. Personality trait indicators were developed through the application of text mining and machine learning techniques. To evaluate the models, a negative binomial regression model, which is well-suited for handling discrete data, was employed. The findings of this study indicate that user openness and conscientiousness positively influence their idea implementation contribution, whereas neuroticism has a negative impact on implementation contribution. Additionally, it is observed that user engagement plays a partial mediating role in the relationship between openness, conscientiousness, neuroticism, and idea implementation contribution. Community incentives can positively moderate the impact of user engagement on the relationship between conscientious personality and idea implementation contribution. This study expands the analysis of the impact mechanism of user idea implementation contributions, which has important theoretical guidance and practical implications for accurately identifying leading users in open innovation communities and enhancing user innovation contributions.