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Neural mechanisms of emotion regulation in childhood anxiety / Kathryn M. HUM in Journal of Child Psychology and Psychiatry, 54-5 (May 2013)
[article]
Titre : Neural mechanisms of emotion regulation in childhood anxiety Type de document : Texte imprimé et/ou numérique Auteurs : Kathryn M. HUM, Auteur ; Katharina MANASSIS, Auteur ; Marc D. LEWIS, Auteur Article en page(s) : p.552-564 Langues : Anglais (eng) Mots-clés : Childhood anxiety event-related potentials emotion faces emotion regulation Index. décimale : PER Périodiques Résumé : Background: The present study was designed to examine the cortical processes that mediate cognitive regulation in response to emotion-eliciting stimuli in anxious children. Methods: Electroencephalographic (EEG) activity was recorded from clinically anxious children (n = 29) and typically developing children (n = 34). Event-related potential components were recorded while children performed a go/no-go task using facial stimuli depicting angry, calm, and happy expressions. Results: Anxious children had significantly greater posterior P1 and frontal N2 amplitudes, components associated with attention/arousal and cognitive control, respectively, than typically developing children. Anxious children also had significantly greater error-related negativities and correct-response negativities relative to typically developing children. For the anxious group only, there were no differences in neural activation between face (emotion) types or trial (Go vs. No-go) types. A regression analysis revealed that No-go N2 amplitudes for calm faces predicted self-reported anxiety levels. Conclusions: Anxious children appeared to show increased cortical activation regardless of the emotional content of the stimuli. Anxious children also showed greater medial-frontal activity regardless of task demands and response accuracy. Taken together, these findings suggest indiscriminate cortical processes that may underlie the hypervigilant regulatory style seen in clinically anxious individuals. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02609.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=196
in Journal of Child Psychology and Psychiatry > 54-5 (May 2013) . - p.552-564[article] Neural mechanisms of emotion regulation in childhood anxiety [Texte imprimé et/ou numérique] / Kathryn M. HUM, Auteur ; Katharina MANASSIS, Auteur ; Marc D. LEWIS, Auteur . - p.552-564.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 54-5 (May 2013) . - p.552-564
Mots-clés : Childhood anxiety event-related potentials emotion faces emotion regulation Index. décimale : PER Périodiques Résumé : Background: The present study was designed to examine the cortical processes that mediate cognitive regulation in response to emotion-eliciting stimuli in anxious children. Methods: Electroencephalographic (EEG) activity was recorded from clinically anxious children (n = 29) and typically developing children (n = 34). Event-related potential components were recorded while children performed a go/no-go task using facial stimuli depicting angry, calm, and happy expressions. Results: Anxious children had significantly greater posterior P1 and frontal N2 amplitudes, components associated with attention/arousal and cognitive control, respectively, than typically developing children. Anxious children also had significantly greater error-related negativities and correct-response negativities relative to typically developing children. For the anxious group only, there were no differences in neural activation between face (emotion) types or trial (Go vs. No-go) types. A regression analysis revealed that No-go N2 amplitudes for calm faces predicted self-reported anxiety levels. Conclusions: Anxious children appeared to show increased cortical activation regardless of the emotional content of the stimuli. Anxious children also showed greater medial-frontal activity regardless of task demands and response accuracy. Taken together, these findings suggest indiscriminate cortical processes that may underlie the hypervigilant regulatory style seen in clinically anxious individuals. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2012.02609.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=196 Separation anxiety disorder in children: disorder-specific responses to experimental separation from the mother / Joe KOSSOWSKY in Journal of Child Psychology and Psychiatry, 53-2 (February 2012)
[article]
Titre : Separation anxiety disorder in children: disorder-specific responses to experimental separation from the mother Type de document : Texte imprimé et/ou numérique Auteurs : Joe KOSSOWSKY, Auteur ; Frank H. WILHELM, Auteur ; Walton T. ROTH, Auteur ; Silvia SCHNEIDER, Auteur Année de publication : 2012 Article en page(s) : p.178-187 Langues : Anglais (eng) Mots-clés : Childhood anxiety separation anxiety disorder autonomic nervous system respiration Index. décimale : PER Périodiques Résumé : Background: Separation anxiety disorder (SAD) is one of the most common anxiety disorders in childhood and is predictive of adult anxiety disorders, especially panic disorder. However, the disorder has seldom been studied and the attempt to distinguish SAD from other anxiety disorders with regard to psychophysiology has not been made. We expected exaggerated anxiety as well as sympathetic and respiratory reactivity in SAD during separation from the mother. Method: Participants were 49 children with a principal diagnosis of SAD, 21 clinical controls (CC) with a principal diagnosis of anxiety disorder other than SAD, and 39 healthy controls (HC) not meeting criteria for any current diagnosis. Analyses of covariance controlling for age were used to assess sympathetic and parasympathetic activation (preejection period and respiratory sinus arrhythmia) as well as cardiovascular (heart rate, mean arterial pressure, total peripheral resistance), respiratory (total breath time, minute ventilation, tidal volume, end-tidal CO2, respiratory variability), electrodermal, and self-report (anxiety, cognitions, symptoms) variables during baseline, 4-min separation from, and reunion with the mother. Results: Children with a diagnosis of SAD were characterized by elevated self-reported anxiety responses to separation and increased sympathetic reactivity compared with CC and HC groups. The SAD group also displayed greater vagal withdrawal and higher reactivity in multiple cardiovascular, respiratory, and electrodermal measures compared with the HC group, while corresponding responses were less in the CC group and not significantly different from the other groups. Conclusions: Separation from the mother elicits greater autonomic, respiratory, and experiential responses in children with SAD. Our findings based on brief experimental separation demonstrate differential subjective and physiological manifestations of specific anxiety diagnoses, thus supporting the validity of the diagnostic category of SAD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02465.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=150
in Journal of Child Psychology and Psychiatry > 53-2 (February 2012) . - p.178-187[article] Separation anxiety disorder in children: disorder-specific responses to experimental separation from the mother [Texte imprimé et/ou numérique] / Joe KOSSOWSKY, Auteur ; Frank H. WILHELM, Auteur ; Walton T. ROTH, Auteur ; Silvia SCHNEIDER, Auteur . - 2012 . - p.178-187.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 53-2 (February 2012) . - p.178-187
Mots-clés : Childhood anxiety separation anxiety disorder autonomic nervous system respiration Index. décimale : PER Périodiques Résumé : Background: Separation anxiety disorder (SAD) is one of the most common anxiety disorders in childhood and is predictive of adult anxiety disorders, especially panic disorder. However, the disorder has seldom been studied and the attempt to distinguish SAD from other anxiety disorders with regard to psychophysiology has not been made. We expected exaggerated anxiety as well as sympathetic and respiratory reactivity in SAD during separation from the mother. Method: Participants were 49 children with a principal diagnosis of SAD, 21 clinical controls (CC) with a principal diagnosis of anxiety disorder other than SAD, and 39 healthy controls (HC) not meeting criteria for any current diagnosis. Analyses of covariance controlling for age were used to assess sympathetic and parasympathetic activation (preejection period and respiratory sinus arrhythmia) as well as cardiovascular (heart rate, mean arterial pressure, total peripheral resistance), respiratory (total breath time, minute ventilation, tidal volume, end-tidal CO2, respiratory variability), electrodermal, and self-report (anxiety, cognitions, symptoms) variables during baseline, 4-min separation from, and reunion with the mother. Results: Children with a diagnosis of SAD were characterized by elevated self-reported anxiety responses to separation and increased sympathetic reactivity compared with CC and HC groups. The SAD group also displayed greater vagal withdrawal and higher reactivity in multiple cardiovascular, respiratory, and electrodermal measures compared with the HC group, while corresponding responses were less in the CC group and not significantly different from the other groups. Conclusions: Separation from the mother elicits greater autonomic, respiratory, and experiential responses in children with SAD. Our findings based on brief experimental separation demonstrate differential subjective and physiological manifestations of specific anxiety diagnoses, thus supporting the validity of the diagnostic category of SAD. En ligne : http://dx.doi.org/10.1111/j.1469-7610.2011.02465.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=150