Journal
STRESS-THE INTERNATIONAL JOURNAL ON THE BIOLOGY OF STRESS
Volume 19, Issue 5, Pages 542-546Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10253890.2016.1192603
Keywords
Cognitive flexibility; men; orbitofrontal cortex; sex differences; stress; Wisconsin card sorting test; women
Funding
- Davis Psychology Department Summer Grant in Aid of Research
- NIH [MH103322, MH059352, EY025999]
- University of California
- Davis Provost's Undergraduate Fellowship
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Psychosocial stress influences cognitive abilities, such as long-term memory retrieval. However, less is known about the effects of stress on cognitive flexibility, which is mediated by different neurobiological circuits and could thus be regulated by different neuroendocrine pathways. In this study, we randomly assigned healthy adults to an acute stress induction or control condition and subsequently assessed participants' cognitive flexibility using an open-source version of the Wisconsin Card Sort task. Drawing on work in rodents, we hypothesized that stress would have stronger impairing effects on cognitive flexibility in men than women. As predicted, we found that stress impaired cognitive flexibility in men but did not significantly affect women. Our results thus indicate that stress exerts sex-specific effects on cognitive flexibility in humans and add to the growing body of research highlighting the need to consider sex differences in effects of stress.
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