Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.

A growing body of literature demonstrates strong effects of ovarian hormones on the hippocampus and adjacent structures. However, resulting impacts on human cognition remain unclear. Addressing this gap, we examine pattern separation ability, a core hippocampal process, across the menstrual cycle us...

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Main Authors: Mateja Perović, Michael L Mack
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0322652
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author Mateja Perović
Michael L Mack
author_facet Mateja Perović
Michael L Mack
author_sort Mateja Perović
collection DOAJ
description A growing body of literature demonstrates strong effects of ovarian hormones on the hippocampus and adjacent structures. However, resulting impacts on human cognition remain unclear. Addressing this gap, we examine pattern separation ability, a core hippocampal process, across the menstrual cycle using the mnemonic similarity task as a behavioral index (N = 183). We find a non-linear effect of the menstrual cycle, with pattern separation performance peaking in the high-estradiol, late follicular phase and reaching its lowest point during the mid-luteal phase, which is characterized by moderate estradiol and high progesterone levels. Additionally, we find that perceived stress may facilitate pattern separation performance. These results point to the importance of ovarian hormones for human cognition, reveal novel effects of perceived stress on mnemonic similarity task performance, and provide preliminary evidence of possible effects of menstrual cycle phase on neural pathways involved in pattern separation.
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spelling doaj-art-e2a7829705574fb3b3eb610d11c695f52025-08-20T03:52:43ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01205e032265210.1371/journal.pone.0322652Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.Mateja PerovićMichael L MackA growing body of literature demonstrates strong effects of ovarian hormones on the hippocampus and adjacent structures. However, resulting impacts on human cognition remain unclear. Addressing this gap, we examine pattern separation ability, a core hippocampal process, across the menstrual cycle using the mnemonic similarity task as a behavioral index (N = 183). We find a non-linear effect of the menstrual cycle, with pattern separation performance peaking in the high-estradiol, late follicular phase and reaching its lowest point during the mid-luteal phase, which is characterized by moderate estradiol and high progesterone levels. Additionally, we find that perceived stress may facilitate pattern separation performance. These results point to the importance of ovarian hormones for human cognition, reveal novel effects of perceived stress on mnemonic similarity task performance, and provide preliminary evidence of possible effects of menstrual cycle phase on neural pathways involved in pattern separation.https://doi.org/10.1371/journal.pone.0322652
spellingShingle Mateja Perović
Michael L Mack
Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
PLoS ONE
title Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
title_full Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
title_fullStr Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
title_full_unstemmed Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
title_short Menstrual cycle and perceived stress predict performance on the mnemonic similarity task.
title_sort menstrual cycle and perceived stress predict performance on the mnemonic similarity task
url https://doi.org/10.1371/journal.pone.0322652
work_keys_str_mv AT matejaperovic menstrualcycleandperceivedstresspredictperformanceonthemnemonicsimilaritytask
AT michaellmack menstrualcycleandperceivedstresspredictperformanceonthemnemonicsimilaritytask