Cohort study, 2022
Do women with PMDD have differences in brain white matter structure?
Yes. Women with PMDD showed differences in white matter structure in specific brain regions compared to healthy women. These differences were associated with symptom severity, but the clinical significance is unclear.
What they did
Researchers used brain imaging to examine white matter in people with PMDD and healthy controls. They used two datasets: one with 67 participants and another with 131 participants. They analyzed measurements of white matter organization and volume throughout the brain.
What they found
Women with PMDD had greater white matter organization in the left uncinate fasciculus (effect size 0.69). The volume of the right uncinate fasciculus was higher in women with PMDD versus controls (effect size 0.40). Severity of premenstrual depression was positively correlated with white matter organization in the right superior longitudinal fasciculus (correlation 0.35).
What it means for you
Brain imaging shows women with PMDD have white matter differences in certain regions, correlating with symptom severity. However, the clinical meaning is unclear. The study was small and difficult to interpret biologically. It provides basic science evidence but not yet practical clinical applications.
67
participants in first imaging dataset
131
participants in second imaging dataset
0.69
effect size for white matter differences
About the study
- Original title
- White matter microstructure and volume correlates of premenstrual dysphoric disorder
- Authors
- Gu X, Dubol M, Stiernman L et al.
- Journal
- Journal of psychiatry & neuroscience : JPN
- Year
- 2022
- Study design
- Cohort study
- Participants
- 131
- What was tested
- None. Observational neuroimaging study comparing brain structure between groups.
- Open access
- Yes
- Read the paper
- doi.org/10.1503/jpn.210143
Topics
Related studies
Systematic review, 2026
Can digital tools help diagnose PMDD?
Non-randomised trial, 2008
Can the Sheehan Disability Scale measure whether treatments work?
Review, 2004
How should doctors diagnose and treat PMS and PMDD?
Randomised trial, 1999
Do SSRIs reduce premenstrual dysphoria symptoms?
Survey study, 2026
Are there different types or patterns of PMDD among Chinese college students?
Study, 2026
Do anxiety and depression get worse before your period if you already have a mental health condition?