Associations between different measures of personality pathology and resting-state autonomic function among adolescents.

Borderline personality disorder (BPD) has been associated with a reduced functional flexibility of the autonomic nervous system (ANS), indexed by decreased vagally mediated heart rate variability (vmHRV). Employing a comprehensive Section II-based assessment approach and a partial Section III-based assessment approach (including Criterion A of the alternative model of personality disorders [AMPD]), the present study investigates how different conceptualizations of personality disorders (PDs) according to the Diagnostic and Statistical Manual for Mental Disorders, 5th edition relate to ANS function. Using the BPD section of the Structured Clinical Interview for DSM-IV Axis II Disorders (SCID-II, a Section II-based assessment approach) and the Semistructured Interview for Personality Functioning DSM-5 (STiP-5.1, a Section III-based assessment approach), we conducted linear regression analyses to examine how categorical (BPD diagnosis) and dimensional (severity and domain) measures of PD are associated with ANS activity among adolescent psychiatric patients (N = 147, Mage = 15.25 years). Replicating earlier findings, analyses revealed a statistically significant positive association between the SCID-II measures of BPD and heart rate (HR), b = 0.43, t(59) = 3.57, p = .001, f = .57, as well as a statistically significant negative association between the SCID-II measures of BPD and vmHRV, b = -0.34, t(59) = -2.74, p = .008, f = .47. Neither the STiP-5.1 total score nor the subscales of the Level of Personality Functioning Scale (LPFS) were associated with HR or vmHRV. The present findings indicate that the SCID-II may capture features of PD that are more informative of variance in physiological function than the STiP-5.1. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Guilt is effectively induced by a written auto-biographical essay but not reduced by experimental pain.

Introduction: The aim of the present study was (1) to validate the method of guilt-induction by means of a written auto-biographical essay and (2) to test whether experimental pain is apt to alleviate the mental burden of guilt, a concept receiving support from both empirical research and clinical observation. Methods: Three independent groups of healthy male participants were recruited. Group allocation was not randomized but within group pain/sham administration was counterbalanced over the two test-days. Groups were tested in the following consecutive order: Group A: guilt induction, heat-pain/sham, N = 59; Group B: guilt induction, cold-pressure-pain/sham, N = 43; Group C: emotionally neutral induction, heat-pain/sham, N = 39. Guilt was induced on both test-days in group A and B before pain/sham administration. Visual analog scale (VAS) guilt ratings immediately after pain/sham stimulation served as the primary outcome. In a control group C the identical heat-pain experiment was performed like in group A but a neutral emotional state was induced. Results: A consistently strong overall effect of guilt-induction (heat-pain: p < 0.001, effect size r = 0.71; CPT-pain p < 0.001, r = 0.67) was found when compared to the control-condition (p = 0.25, r = 0.08). As expected, heat- and cold-pressure-stimuli were highly painful in all groups (p < 0.0001, r = 0.89). However, previous research supporting the hypothesis that pain is apt to reduce guilt was not replicated. Conclusion: Although guilt-induction was highly effective on both test-days no impact of pain on behavioral guilt-ratings in healthy individuals could be identified. Guilt induction per se did not depend on the order of testing. The result questions previous experimental work on the impact of pain on moral emotions.

Pituitary volume in adolescents with non-suicidal self-injury: Preliminary evidence for alterations in pituitary maturation.

BACKGROUND: Non-suicidal self-injury (NSSI), typically observed in the context of various mental disorders, represents a highly prevalent and serious problem among adolescents. Based on studies linking NSSI with stress, alterations in hypothalamic-pituitary-adrenal (HPA) axis functioning have been suggested to contribute to the development and maintenance of this behavior. While research has mainly focused on cortisol - the main hormonal output of this system - to our knowledge, no study has examined pituitary gland volume (PGV) - an alternative approach of assessing HPA axis functionality that is less state-dependent - in adolescents engaging in NSSI. METHODS: Magnetic Resonance Imaging (MRI) was performed among n = 35 adolescents (aged 12-17 years) fulfilling the diagnostic criteria for NSSI disorder according to DSM-5 and n = 31 age-matched healthy controls; PGV was obtained by manual tracing. To test for group differences - our primary aim - a hierarchical linear regression model was computed, controlling for several potential confounding variables. Since adolescence reflects a time period for significant brain development - including changes in PGV - we also tested for an age-dependent group effect. In a second step, we aimed to investigate whether differences in PGV are accounted for by the experience of childhood adversity or psychopathology. Finally, following an exploratory approach, the dimensional association between PGV and various clinical characteristics (e.g., frequency of NSSI) were explored. RESULTS: No evidence was found for overall volumetric differences between healthy control participants and adolescents engaging in NSSI (p > 0.05) - recognizing that small effect size differences could not be detected in the present study - but group membership significantly interacted with age in predicting PGV (p = 0.02). Particularly, while PGV increased linearly with age in healthy controls (B = 61.39, SE = 14.94, p < 0.01), no corresponding association was found in NSSI patients (B = 16.83, SE = 12.20, p = 0.17). PGV was not related to adverse experiences during childhood and none of the clinical characteristics (e.g., frequency of NSSI) significantly correlated with PGV (p > 0.05). CONCLUSION: These results provide preliminary evidence for alterations in pituitary maturation in adolescents engaging in NSSI, although replication in longitudinal studies with larger samples is warranted.

Child maltreatment and hypothalamic-pituitary-adrenal axis functioning: A systematic review and meta-analysis.

Alterations in hypothalamic-pituitary-adrenal (HPA) axis and its effector hormone cortisol have been proposed as one possible mechanism linking child maltreatment experiences to health disparities. In this series of meta-analyses, we aimed to quantify the existing evidence on the effect of child maltreatment on various measures of HPA axis activity. The systematic literature search yielded 1,858 records, of which 87 studies (k = 132) were included. Using random-effects models, we found evidence for blunted cortisol stress reactivity in individuals exposed to child maltreatment. In contrast, no overall differences were found in any of the other HPA axis activity measures (including measures of daily activity, cortisol assessed in the context of pharmacological challenges and cumulative measures of cortisol secretion). The impact of several moderators (e.g., sex, psychopathology, study quality), the role of methodological shortcomings of existing studies, as well as potential directions for future research are discussed.