Assessing n-back task performance of menstrual adult women: Comparison with and without premenstrual syndrome

DOI Open Access
  • Aoki Makiko
    Graduate School of Comprehensive Human Sciences, University of Tsukuba Faculty of Health and Medical Sciences, Kanagawa Institute of Technology
  • Suzuki Masato
    Graduate School of Material Science, University of Hyogo
  • Okayama Hisayo
    Faculty of Medicine, University of Tsukuba

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Other Title
  • 成人女性の性周期に伴うn-back 課題遂行能の変化と影響要因の検討
  • −月経前症候群の有無による比較−

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Abstract

Women with premenstrual syndrome (PMS) regularly experience mental and physical symptoms that negatively affect their quality of life. An association between PMS and working memory deficits in premenstrual women has been suggested but remains unclear. The present study assessed the effects of PMS on working memory in 15 women with and 26 without PMS. To assess working memory performance, candidates were asked to perform n-back (0-, 1-, and 2-back)　tasks in the luteal and follicular phases of their cycle. In the 2-back task, the correct response rate in the PMS group was　85.9±2.0%, which was marginally lower than the without PMS group (p ＝.07). In the Profile of Mood States questionnaire, there were significant differences in the total mood disturbance (p=.006) and “ depression-dejection ”(p=.043) scores between the groups. There were no significant differences in self-rated depression scale scores or sex hormone levels　between these groups during the luteal and follicular phases. Our findings suggest that the negative mood in the luteal phase may be a trigger for reduced working memory performance in women with PMS.

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