Perceived and physiological arousal during a stress task: Can they differentiate between anxiety and depression?
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Abstract of the Article
Background: Anxiety and depression might be two different valid constructs that often co-occur, or they could be different manifestations of the same underlying vulnerability. A theoretical framework to address this question is the tripartite model, by Clark and Watson, which hypothesizes that physiological hyperarousal (PH) is specific for anxiety. Knowledge about the relationship between PH, psychophysiological measures, perceived arousal, and anxiety would increase our understanding of the validity of the PH construct in this model. Our objective was to assess whether (a) hypothalamic—pituitary—adrenocortical (HPA) axis functioning and (b) perceived arousal before, during, and after stress can differentiate anxious from depressive children.
Methods: In a general population sample of 225 children aged 8—12 years, self-reported anxiety and depressive symptoms were assessed using the Multidimensional Anxiety Scale for Children (MASC) and the Children’s Depression Inventory (CDI). Perceived arousal was assessed using a selfreport questionnaire before, during, and after a stressful task. Basal and reactive HPA-axis functioning were used as indices for psychophysiological arousal.
Results: Our data showed that the relation between perceived arousal and anxiety problems is stronger than the relation with depressive problems. Reactive HPA-axis functioning is reduced in children with depressive problems.
Conclusions: Some evidence was found in support of the tripartite model. Our findings indicate that perceived arousal to a challenge might be a useful tool to assess the PH component of the tripartite model. Reactive HPA-axis functioning might be able to differentiate between anxiety and depressive problems in children in a general population sample, but effect sizes are small and replication is needed.
Authors of the Article
- Gwendolyn C. Dieleman ([email protected])
- Jan van der Ende
- Frank C. Verhulst
- Anja C. Huizink
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