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A history of major depressive disorder and the response to stress.

Ilgen MA, Hutchison KE. A history of major depressive disorder and the response to stress. Journal of affective disorders. 2005 Jun 1; 86(2-3):143-50.

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Abstract:

BACKGROUND: The occurrence of Major Depressive Disorder (MDD) has been linked to an increased vulnerability to stress. However, the specific behavioral and affective aspects that may underlie this vulnerability to stress have not been well studied. METHODS: This study examined sensitivity to a stress manipulation in 62 participants, 30 with and 32 without a previous episode of MDD. Comparisons were made between those with a history of depression and those without, randomized to either the high or low stress conditions on self-report measures of affect and behavior measures of performance. RESULTS: A significant interaction was found between depression history and level of stress on measures of self-report tension and behavioral performance on the experimental task. Specifically, those with a history of MDD in the high stress condition reported significantly more tension than other participants. Additionally, participants in the high stress condition without a history of MDD responded to uncontrollable stress by responding at a significantly higher rate on the task while those individuals with a history of MDD responded to uncontrollable stress by maintaining a relatively low level of responding. No differences in self-report depressed affect were found. LIMITATIONS: The study utilized a laboratory stressor in a sample composed primarily of college students. CONCLUSIONS: A history of MDD appears to be associated with an increased sensitivity to uncontrollable stress. This vulnerability may manifest itself in the subjective state of individuals (i.e., tension) or in their behavioral responses to stress.





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