1 recherche sur le mot-clé 'frontolimbic circuitry'

Neural effects of controllability as a key dimension of stress exposure / Emily M. COHODES in Development and Psychopathology, 35-1 (February 2023)  

Public ISBD [article]  inDevelopment and Psychopathology > 35-1 (February 2023) . - p.218-227 Titre : Neural effects of controllability as a key dimension of stress exposure Type de document : texte imprimé Auteurs : Emily M. COHODES, Auteur ; Paola ODRIOZOLA, Auteur ; Jeffrey D. MANDELL, Auteur ; Camila CABALLERO, Auteur ; Sarah MCCAULEY, Auteur ; Sadie J. ZACHAREK, Auteur ; H.R. HODGES, Auteur ; Jason T. HABERMAN, Auteur ; Mackenzye SMITH, Auteur ; Janeen THOMAS, Auteur ; Olivia C. MEISNER, Auteur ; Cameron T. ELLIS, Auteur ; Catherine A. HARTLEY, Auteur ; Dylan G. GEE, Auteur Article en page(s) : p.218-227 Langues : Anglais (eng) Mots-clés : control  frontolimbic circuitry  stress reactivity  stress  stressor controllability Index. décimale : PER Périodiques Résumé : Cross-species evidence suggests that the ability to exert control over a stressor is a key dimension of stress exposure that may sensitize frontostriatal-amygdala circuitry to promote more adaptive responses to subsequent stressors. The present study examined neural correlates of stressor controllability in young adults. Participants (N = 56; M age = 23.74, range = 18-30 years) completed either the controllable or uncontrollable stress condition of the first of two novel stressor controllability tasks during functional magnetic resonance imaging (fMRI) acquisition. Participants in the uncontrollable stress condition were yoked to age- and sex-matched participants in the controllable stress condition. All participants were subsequently exposed to uncontrollable stress in the second task, which is the focus of fMRI analyses reported here. A whole-brain searchlight classification analysis revealed that patterns of activity in the right dorsal anterior insula (dAI) during subsequent exposure to uncontrollable stress could be used to classify participants' initial exposure to either controllable or uncontrollable stress with a peak of 73% accuracy. Previous experience of exerting control over a stressor may change the computations performed within the right dAI during subsequent stress exposure, shedding further light on the neural underpinnings of stressor controllability. En ligne : https://doi.org/10.1017/S0954579421001498 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499 [article] Neural effects of controllability as a key dimension of stress exposure [texte imprimé] / Emily M. COHODES, Auteur ; Paola ODRIOZOLA, Auteur ; Jeffrey D. MANDELL, Auteur ; Camila CABALLERO, Auteur ; Sarah MCCAULEY, Auteur ; Sadie J. ZACHAREK, Auteur ; H.R. HODGES, Auteur ; Jason T. HABERMAN, Auteur ; Mackenzye SMITH, Auteur ; Janeen THOMAS, Auteur ; Olivia C. MEISNER, Auteur ; Cameron T. ELLIS, Auteur ; Catherine A. HARTLEY, Auteur ; Dylan G. GEE, Auteur . - p.218-227. Langues : Anglais (eng) in Development and Psychopathology > 35-1 (February 2023) . - p.218-227 Mots-clés : control  frontolimbic circuitry  stress reactivity  stress  stressor controllability Index. décimale : PER Périodiques Résumé : Cross-species evidence suggests that the ability to exert control over a stressor is a key dimension of stress exposure that may sensitize frontostriatal-amygdala circuitry to promote more adaptive responses to subsequent stressors. The present study examined neural correlates of stressor controllability in young adults. Participants (N = 56; M age = 23.74, range = 18-30 years) completed either the controllable or uncontrollable stress condition of the first of two novel stressor controllability tasks during functional magnetic resonance imaging (fMRI) acquisition. Participants in the uncontrollable stress condition were yoked to age- and sex-matched participants in the controllable stress condition. All participants were subsequently exposed to uncontrollable stress in the second task, which is the focus of fMRI analyses reported here. A whole-brain searchlight classification analysis revealed that patterns of activity in the right dorsal anterior insula (dAI) during subsequent exposure to uncontrollable stress could be used to classify participants' initial exposure to either controllable or uncontrollable stress with a peak of 73% accuracy. Previous experience of exerting control over a stressor may change the computations performed within the right dAI during subsequent stress exposure, shedding further light on the neural underpinnings of stressor controllability. En ligne : https://doi.org/10.1017/S0954579421001498 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=499