ABSTRACT
BACKGROUND: The Behavioural Inhibition System (BIS) as a neural system controlling motivation and behaviour, has previously been linked to multiple mental disorders, including Post-traumatic Stress Disorder (PTSD). BIS-sensitivity could increase the likelihood of PTSD development after trauma. However, previous studies have largely measured BIS-sensitivity retrospectively (i.e. after trauma, or even after onset of PTSD). OBJECTIVE: The study aims to confirm the relationship between BIS-sensitivity prior to trauma and PTSD symptoms. METHOD: After assessment of BIS-sensitivity, N = 119 healthy participants watched a film with visually disturbing material. After 72 h, participants completed a questionnaire on PTSD-related symptoms (PCL-5). RESULTS: In a multiple linear regression model, BIS-sensitivity significantly predicted PTSD symptoms, even after controlling for the decrease in mood, as well as for participants' age and sex, two factors that had previously been shown to influence BIS-sensitivity. CONCLUSIONS: This is the first study to measure BIS-sensitivity before the occurrence of the (experimental) trauma and strengthens its role as a potential pre-traumatic risk factor.
Main research question: What factors predict the development of posttraumatic symptoms after exposure to a traumatic event?The candidate investigated here is the Behavioral Inhibition System (BIS), a neural system controlling motivation and behavior. Our study provides evidence that the BIS is a potential risk factor, prediciting the development of posttraumatic symptoms after exposure to an experimental trauma in healthy participants.
Subject(s)
Stress Disorders, Post-Traumatic , Humans , Stress Disorders, Post-Traumatic/diagnosis , Healthy Volunteers , Retrospective Studies , Risk Factors , MotivationABSTRACT
Os objetivos desse estudo foram investigar propriedades psicométricas da versão brasileira do Behavioral Inhibition Instrument (BII) e suas associações com sintomas de ansiedade e depressão em crianças e adolescentes. Participaram 838 estudantes com idades entre 9-18 anos (M=12,89; DP=2,10) de uma amostra comunitária respondendo a versão brasileira do BII e questionários de autorrelato de sintomas de ansiedade e depressão. Os resultados demonstraram que a prevalência de crianças e adolescentes na categoria de alta inibição comportamental foi de 16,6%. O BII apresentou propriedades psicométricas satisfatórias com maiores níveis de inibição comportamental correlacionados a maiores níveis de sintomas de ansiedade e depressão, especialmente para sintomas de fobia social. Além disso, participantes com altos escores de inibição comportamental tiveram maior probabilidade de apresentar sintomas de ansiedade em um espectro clínico ou subclínico, especialmente para fobia social. Implicações para intervenções preventivas precoces são brevemente discutidas...
The aims of this study were to investigate psychometric properties of the Behavioral Inhibition Instrument (BII) and their association with depression and anxiety symptoms in children and adolescents. Eight hundred and thirty-eight students aged 9-18 years (M=12.89, SD=2.10) from a community sample answered the Brazilian-Portuguese version of the BII and self-report questionnaires of depression and anxiety symptoms. Results showed the prevalence of children and adolescents in the high behavioral inhibition (BI) category was 16.6%. The BII presented satisfactory psychometric properties with higher levels of BI being correlated to higher levels of depression and anxiety symptoms, especially social phobia symptoms. Also participants with higher BI scores were more likely to present anxiety symptoms in a subclinical or clinical range, especially for social phobia. Implications for early preventive interventions are briefly discussed...
Los objetivos de este estudio fueron investigar las propiedades psicométricas de la versión brasileña del Behavioral Inhibition Instrument (BII) y sus asociaciones con los síntomas de ansiedad y depresión en niños y adolescentes. Ochocientos treinta y ocho (838) estudiantes con edades entre 9 y 18 años (M=12,89; DP=2,10) de una muestra comunitaria respondieron a la versión brasileña del BII y a cuestionarios auto-aplicables de síntomas de ansiedad y depresión. Los resultados demuestran que el predominio de niños y adolescentes en la categoría de alta inhibición conductual fue de 16,6%. El BII presentó propiedades psicométricas satisfactorias con mayores niveles de inhibición conductual correlacionándose a mayores niveles de síntomas de ansiedad y depresión, especialmente para fobia social. Además, los participantes con altos puntajes de inhibición conductual tuvieron mayor probabilidad de presentar síntomas de ansiedad en un espectro clínico o subclínico, especialmente para fobia social. Algunas implicancias para realizar intervenciones preventivas precoces son brevemente discutidas...
Subject(s)
Humans , Male , Female , Child , Adolescent , Anxiety/pathology , PsychometricsABSTRACT
La literatura científica ha mostrado que la inhibición conductual (IC) se caracteriza por la presencia de ansiedad ante estímulos desconocidos, lo que conlleva conductas de retraimiento y evitación social. El presente estudio realiza una revisión bibliográfica sobre la IC y su relación con los trastornos de ansiedad en la infancia. Dado que la IC puede observarse en edades muy tempranas, la literatura ha examinado su papel predictor en el desarrollo de trastornos de ansiedad. Pese a ello, los estudios revisados apuntan a que no todos los niños ansiosos muestran un comportamiento inhibido ni todos los niños con IC sufren trastornos de ansiedad. Dada esta disparidad, sería necesario estudiar qué otros factores están implicados. Asimismo, los datos apuntan a que una detección precoz de la IC permitiría desarrollar programas de prevención de los trastornos de ansiedad en la infancia.
The literature has revealed that Behavioral inhibition (BI) is characterized by the presence of anxiety to unknown stimuli, which leads to withdrawal behaviors and social avoidance. The present study is aimed at revising the state-of-the-art on BI and examining its role that plays of childhood anxiety disorders. As the IB can be observed at very early ages, the literature has examined its predictive role in the development of anxiety disorders. Despite this, the reviewed studies suggest that not all anxious children show comorbid BI nor all inhibited children have anxiety disorders. Given this disparity, it would be necessary to consider what other factors are involved in the anxiety disorders. Furthermore, the data suggest that early detection of the BI would contribute to develop prevention programs for anxiety disorders in childhood.
