RESUMEN
Persistent suicide ideation (SI) is known to be a risk factor for subsequent suicidal behaviors. Reducing SI persistence among people with a history of SI consequently might be a useful target for preventive intervention; however, basic information is lacking about patterns and predictors of SI persistence. We report preliminary retrospective data on annual SI persistence in a representative sample of 3,501 U.S. Army soldiers with lifetime SI from the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS). Reports about age-of-onset and number of years with SI were used to estimate two definitions of persistence: persistence beyond year-of-onset and proportional annual persistence (i.e., percentage of years with SI since year-of-onset). Results revealed that for 47.8% of respondents with lifetime SI, their SI did not persist beyond the year-of-onset. For the 52.2% whose SI did persist beyond the year-of-onset, the median (interquartile range) proportional annual persistence was 33% (17-67%). Significant predictors of increased persistence were different for respondents with preenlistment SI onset (prior histories of attention-deficit/hyperactivity disorder [ADHD], bipolar disorder, and panic disorder) and postenlistment SI onset (male, combat support military occupation specialty, prior histories of ADHD, panic disorder, and posttraumatic stress disorder). These predictors of persistence are different from the predictors of SI onset, suggesting that secondary preventive interventions to reduce SI persistence may need to focus on different factors than primary preventive interventions to reduce SI onset. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
Asunto(s)
Personal Militar/psicología , Resiliencia Psicológica , Ideación Suicida , Adulto , Factores de Edad , Trastorno por Déficit de Atención con Hiperactividad/psicología , Femenino , Humanos , Masculino , Trastorno de Pánico/psicología , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Factores Sexuales , Trastornos por Estrés Postraumático/psicologíaRESUMEN
Prior research has shown that most known risk factors for suicide attempts in the general population actually predict suicide ideation rather than attempts among ideators. Yet clinical interest in predicting suicide attempts often involves the evaluation of risk among patients with ideation. We examined a number of characteristics of suicidal thoughts hypothesized to predict incident attempts in a retrospective analysis of lifetime ideators (N = 3,916) drawn from a large (N = 29,982), representative sample of United States Army soldiers. The most powerful predictors of first nonfatal lifetime suicide attempt in a multivariate model controlling for previously known predictors (e.g., demographics, mental disorders) were: recent onset of ideation, presence and recent onset of a suicide plan, low controllability of suicidal thoughts, extreme risk-taking or "tempting fate," and failure to answer questions about the characteristics of one's suicidal thoughts. A predictive model using these risk factors had strong accuracy (area under the curve [AUC] = .93), with 66.2% of all incident suicide attempts occurring among the 5% of soldiers with highest composite predicted risk. This high concentration of risk in this retrospective study suggests that a useful clinical decision support model could be constructed from prospective data to identify those with highest risk of subsequent suicide attempt. (PsycINFO Database Record
Asunto(s)
Ideación Suicida , Intento de Suicidio/prevención & control , Intento de Suicidio/psicología , Femenino , Humanos , Masculino , Personal Militar/psicología , Curva ROC , Estudios Retrospectivos , Factores de Riesgo , Intento de Suicidio/estadística & datos numéricos , Estados UnidosRESUMEN
The central objective of the current study was to evaluate how executive functions (EF), and specifically cognitive flexibility, were concurrently and predictively associated with anxiety and depressive symptoms in adolescence. Adolescents (N = 220) and their parents participated in this longitudinal investigation. Adolescents' EF was assessed by the Wisconsin Card Sorting Test (WCST) during the initial assessment, and symptoms of depressive and anxiety disorders were reported by mothers and youths concurrently and 2 years later. Correlational analyses suggested that youths who made more total errors (TE), including both perseverative errors (PE) and nonperseverative errors (NPE), concurrently exhibited significantly more depressive symptoms. Adolescents who made more TE and those who made more NPE tended to have more anxiety symptoms 2 years later. Structural equation modeling analyses accounting for key explanatory variables (e.g., IQ, disruptive behavior disorders, and attention deficit hyperactive disorder) showed that TE was concurrently associated with parent reports of adolescent depressive symptoms. The results suggest internalizing psychopathology is associated with global (TE) and nonspecific (NPE) EF difficulties but not robustly associated with cognitive inflexibility (PE). Future research with the WCST should consider different sources of errors that are posited to reflect divergent underlying neural mechanisms, conferring differential vulnerability for emerging mental health problems.
Asunto(s)
Trastornos de Ansiedad/diagnóstico , Depresión/diagnóstico , Función Ejecutiva , Adolescente , Trastornos de Ansiedad/psicología , Trastorno por Déficit de Atención con Hiperactividad/psicología , Depresión/psicología , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , PronósticoRESUMEN
Neural network models that guide neuropsychological assessment practices are increasingly used to explicate depression, though a paucity of work has focused on regulatory systems that are under development in adolescence. The purpose of this study was to evaluate subsystems of attention related to executive functioning including alerting, orienting, and executive attention networks, as well as sustained attention with varying working memory load, in a sample of depressed and well adolescents. Neuropsychological functioning in 99 adolescents diagnosed with major depressive disorder (MDD) and 63 adolescent healthy controls (M = 16.6 years old) was assessed on the Attention Network Test (ANT) and the Continuous Performance Test, Identical Pairs. Adolescents with MDD, particularly those who were not medicated, were slower to process conflict (slower reaction time on the Executive Attention scale of the ANT) compared to controls, particularly for those who were not undergoing psychopharmacological treatment. Tentative evidence also suggests that within the MDD group, orienting performance was more impaired in those with a history of comorbid substance use disorder, and alerting was more impaired in those with a history of a suicide attempt. Adolescents with depression showed impaired executive attention, although cognitive performance varied across subgroups of patients. These findings highlight the importance of examining neurocognitive correlates associated with features of depression and suggest an avenue for future research to help guide the development of interventions.
Asunto(s)
Atención , Trastorno Depresivo Mayor/fisiopatología , Función Ejecutiva , Adolescente , Estudios de Casos y Controles , Trastorno Depresivo Mayor/psicología , Femenino , Humanos , Masculino , Memoria a Corto Plazo , Pruebas Neuropsicológicas , Desempeño Psicomotor/fisiología , Tiempo de ReacciónRESUMEN
This introduction sets out to present a series of paper about a novel perspective regarding stress and sex hormones, or what the authors within this special issue term "coupling" of hypothalamic-pituitary-adrenal and--gonadal axes. This view postulates that these axes do not necessarily operate in opposition, but can operate together as evidenced empirically as a positive within-person association between stress hormones like cortisol or sex hormones like testosterone. A wealth of papers within the special issue demonstrate positive coupling across acute, diurnal, basal, and longitudinal timeframes and across several different types of contexts. Reviews were meant to challenge whether this was physiologically plausible. Consistently, sophisticated statistical models were utilized in order to show a template for how to model positive coupling and to ensure that coupling was a within-person phenomenon. We cautiously considered positive coupling until the consistency of observing coupling was robust enough for us to consider challenging the prevailing oppositional view of these axes. We do so to acknowledge that there are contexts, moments and stages in which the function of these axes should work together: for example when contexts are both stressful and challenging or at developmental stages (like adolescence) in which the youth must grow up despite the storm and stress of youth. We hope that by putting forward a functional dual-axis approach, the field will be able to consider when and how these axes work together.
Asunto(s)
Desarrollo del Adolescente/fisiología , Hormonas Gonadales/fisiología , Hidrocortisona/fisiología , Sistema Hipotálamo-Hipofisario/fisiología , Sistema Hipófiso-Suprarrenal/fisiología , Desarrollo Sexual/fisiología , Adolescente , Humanos , Sistema Hipotálamo-Hipofisario/metabolismo , Sistema Hipófiso-Suprarrenal/metabolismoRESUMEN
We examined psychopathology-neuroendocrine associations in relation to the transition into adolescence within a developmental framework that acknowledged the interdependence of the HPA and HPG hormone systems in the regulation of responses to everyday affective contexts. Saliva samples were collected during anxiety and anger inductions from 51 young adolescents (M 13.47, SD = .60 years) to evaluate cortisol, DHEA, and testosterone responses. Internalizing and externalizing problems were assessed at pre-adolescence (M = 9.27, SD = .58 years) while youths were in elementary school and concurrently with hormones in early adolescence. Externalizing problems from elementary school predicted adolescents' reduced DHEA reactivity during anxiety induction. Follow up analyses simultaneously examining the contributions of elementary school and adolescent problems showed a trend suggesting that youths with higher levels of internalizing problems during elementary school eventuated in a profile of heightened DHEA reactivity as adolescents undergoing anxiety induction. For both the anxiety and the anger inductions, it was normative for DHEA and testosterone to be positively coupled. Adolescents with high externalizing problems but low internalizing problems marshaled dual axes co-activation during anger induction in the form of positive cortisol-testosterone coupling. This is some of the first evidence suggesting affective context determines whether dual axes coupling is reflective of normative or problematic functioning in adolescence.
Asunto(s)
Conducta del Adolescente/fisiología , Desarrollo del Adolescente/fisiología , Deshidroepiandrosterona/metabolismo , Emociones/fisiología , Hidrocortisona/metabolismo , Sistema Hipotálamo-Hipofisario/fisiología , Sistema Hipófiso-Suprarrenal/fisiología , Desarrollo Sexual/fisiología , Testosterona/metabolismo , Adolescente , Niño , Femenino , Humanos , MasculinoRESUMEN
This study investigated whether major depression in adolescence is characterized by neurocognitive deficits in attention, affective decision making, and cognitive control of emotion processing. Neuropsychological tests including the Wechsler Abbreviated Scale of Intelligence, the Continuous Performance Test-Identical Pairs, the Attention Network Test, the Iowa Gambling Task, the Emotional Go-NoGo Task, and the Face Go-NoGo Task were administered to adolescents with Major Depressive Disorder (MDD) (n = 31) and psychiatric diagnosis free controls (n = 30). Findings indicated that compared with controls, depressed adolescents exhibited impaired sustained attention; a gender by group interaction on affective decision making such that depressed males tended to make less advantageous choices on the IGT; and an inverse pattern of correlations between depressive symptom counts and reaction time to affective stimuli, characterizing greater affective reactivity in depressed adolescents. Findings demonstrate that adolescents with MDD display selective neurocognitive impairments on tasks capturing 'cool' and 'hot' executive functioning.
Asunto(s)
Trastornos del Conocimiento/complicaciones , Trastorno Depresivo Mayor/complicaciones , Adolescente , Atención , Toma de Decisiones , Trastorno Depresivo Mayor/psicología , Función Ejecutiva , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Adulto JovenRESUMEN
Borderline personality disorder (BPD) is a complex psychiatric disorder that involves the core feature of affect dysregulation. Prior neuroimaging studies have indicated that BPD patients have (1) excessive amygdala activation to negative emotion and (2) diminished frontal regulation. This study examined amygdala functional connectivity in 12 women with BPD and 12 matched healthy comparison volunteers. We explored how connectivity patterns would change in the context of processing neutral, overt fear, or masked fear face expressions. Each participant underwent three 5-min fMRI scans in which they primarily viewed: (1) neutral, (2) overt fear, and (3) masked fear faces. In comparison to their healthy counterparts, young women with BPD showed (1) lower connectivity between bilateral amygdala and mid-cingulate cortex during the neutral scan; (2) higher connectivity between bilateral amygdala and rostral anterior cingulate cortex during the overt fear scan; and (3) higher right amygdala connectivity with bilateral thalamus and right caudate during the masked fear scan. Exploratory analyses revealed interesting correlations between amygdala connectivity in these conditions with multiple clinical measures. Results from the neutral scan add to the few prior connectivity studies in BPD that have been suggestive of lower fronto-limbic connectivity in BPD. However, the connectivity findings during fear processing are novel, and map onto basic research models for amygdala connectivity, that is, connections to frontal areas for overt fear processing versus connections to thalamus for automatic fear processing. Further, results suggest that BPD subjects tap into both pathways more strongly than healthy comparisons.
Asunto(s)
Trastorno de Personalidad Limítrofe/fisiopatología , Trastorno de Personalidad Limítrofe/psicología , Giro del Cíngulo/fisiología , Imagen por Resonancia Magnética , Red Nerviosa/fisiología , Adolescente , Adulto , Amígdala del Cerebelo , Miedo/fisiología , Miedo/psicología , Femenino , Humanos , Imagen por Resonancia Magnética/métodos , Vías Nerviosas/fisiología , Estimulación Luminosa/métodos , Adulto JovenRESUMEN
The purpose of the present investigation was to examine the association between circadian rhythms of cortisol and physical and relational aggression. Morning arrival, prelunch, and afternoon predeparture salivary cortisol were assessed among 418 maltreated and nonmaltreated children (52% maltreated; 49% female) attending a summer day camp. Counselors and peers rated participants' involvement in physically and relationally aggressive behaviors. Results indicated that physical aggression was associated with heightened cortisol following morning arrival and relatively steep declines in cortisol over the day, whereas relational aggression was associated with low cortisol following morning arrival and blunted diurnal change in cortisol. Moreover, maltreatment was a significant moderator of this relationship such that aggression was related to greater cortisol dysregulation among nonmaltreated than among maltreated children. The findings suggest that physiological correlates of aggression may differ for physical and relational forms of aggression and among maltreated versus nonmaltreated populations.