Cited by 102Posttraumatic Stress Disorder ResearchMemory Processes and InfluencesIdentity, Memory, and Therapy

Identification of a narrow post-ovulatory window of vulnerability to distressing involuntary memories in healthy women

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Soni, Mira, Curran, Valerie H., Kamboj, Sunjeev K.·2013·Neurobiology of Learning and Memory

Abstract

Psychological disorders characterised by intrusive memories are more prevalent in women than men. The biological, social and cognitive processes underlying this gender-difference have yet to be fully elucidated. Some evidence suggests that (fluctuations in) ovarian hormone levels are responsible for altered sensitivity to emotional stimuli during certain phases in the menstrual-cycle and this may form the basis of a specific vulnerability to psychological disorders in women. The post-ovulatory (luteal) phase has been identified as a period of particular vulnerability to the development of post-traumatic stress disorder (PTSD). Using an experimental model of PTSD, we examine whether differences are detectable between discrete phases in the menstrual-cycle in the experience of intrusive memories. Women (18-35 years-old) in one of three tightly-defined periods within the menstrual cycle--mid-follicular (n=15), early-luteal (n=15) and late-luteal (n=11)--provided saliva samples for ovarian-hormone assay and watched a distressing film. Subsequent intrusive memories, assessed using a daily online-diary, occurred significantly more frequently in the early-luteal group compared to mid-follicular and late-luteal groups. Intrusion frequency was negatively correlated with the estradiol-to-progesterone ratio, but not estradiol or progesterone alone, suggesting that the interactive effect of low estradiol and high progesterone at encoding contributes to the observed effect. Our results support the need for further research in a clinical context with naturally-cycling women who experience a traumatic event, since assessment of days-since-last-menses and ovarian hormone levels may help to identify those at greatest risk of developing re-experiencing symptoms akin to those seen in psychological disorder such as depression and PTSD.

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Crossref · 10.1016/j.nlm.2013.04.003

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Authors
Soni, M., Curran, V. H., & Kamboj, S. K.
Affiliations
University College London (GB)
Corresponding author
Kamboj, Sunjeev K.
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2013-09
Volume
104
Pages
32-38
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2078412093
Cited by
102
References
42
Citations by year
2026: 1 · 2025: 4 · 2024: 10 · 2023: 6 · 2022: 18 · 2021: 19 · 2020: 14 · 2019: 7 · 2018: 8 · 2017: 1 · 2016: 4 · 2015: 3 · 2014: 6 · 2013: 1
FWCI
5.19
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Learning and Memory (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Research Bank (Australian Catholic University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Social Sciences › Psychology › Developmental and Educational Psychology › Identity, Memory, and Therapy
Keywords
menstrual cycle, luteal phase, ovarian hormones, estradiol, progesterone, estradiol/progesterone ratio, intrusive memories, post-traumatic stress disorder, gender differences, women's mental health, re-experiencing symptoms, depression
MeSH terms
Adolescent, Adult, Affect, Anxiety, Estradiol, Female, Humans, Memory, Menstrual Cycle, Progesterone, Time Factors, Young Adult

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