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Psychopharmacology : Volume 233, Issue 13, July 2016

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Cortisol effects on fear memory reconsolidation in women

Content Provider	Springer Nature Link
Author	Meir Drexler, Shira Merz, Christian J. Hamacher Dang, Tanja C. Wolf, Oliver T.
Copyright Year	2016
Abstract	Previous work from our group has shown that cortisol enhances fear reconsolidation in men. Whether similar effects can be observed in women remains an open question.The effects of cortisol on the reconsolidation of fear memories were investigated in women. Based on results in men, we expected a specific enhancing effect of cortisol administration on the reactivated fear memory. In addition, possible interactions with oral contraceptive use were tested.We incorporated a differential fear conditioning paradigm in a 3-day reconsolidation design. A fear memory, which was created on the first day, was reactivated on the second day following cortisol administration in the target group. One control group was given cortisol without reactivation, and the other participated in the reactivation session following placebo intake. On the third day, the return of fear for all stimuli following reinstatement was tested. Skin conductance response served as measure of conditioned response.In contrast to the hypothesis, cortisol in combination with reactivation did not enhance fear reconsolidation. No differences between the three experimental groups were apparent. In addition, hormonal contraceptive use had no effect on any of the learning phases and did not interact with the cortisol manipulation.The lack of an effect in women might be the result of alternating concentrations of sex hormones during different phases of the menstrual cycle or following oral contraceptive use. Considering the higher vulnerability of women to stress-related mental disorders, further investigations in women are of great importance for both theory and treatment.
Starting Page	2687
Ending Page	2697
Page Count	11
File Format	PDF
ISSN	00333158
Journal	Psychopharmacology
Volume Number	233
Issue Number	14
e-ISSN	14322072
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-05-02
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fear conditioning Return of fear Reinstatement Glucocorticoids Skin conductance response Memory reactivation Sex differences Neurosciences Pharmacology/Toxicology Psychiatry
Content Type	Text
Resource Type	Article
Subject	Pharmacology

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