季節要因が脳機能に及ぼす影響：系統的レビューと将来の展望
Joshita Majumdar1, D Rangaprakash2, Gopikrishna Deshpande1,3,4,5,6,7
1Auburn University Neuroimaging Center, Department of Electrical and Computer Engineering, Auburn University, Auburn, AL, USA.
Abstract:
The empirical evidence for the effects of changing seasons on humans and other species has long been a subject of public and scientific curiosity. However, supporting evidence is predominantly behavioral, warranting further quantitative/mechanistic validation. Three putative mechanisms proposed here include (1) variability in photoperiod and temperature, (2) gravitational effects from varying Earth-celestial body distances, including lunar phases and eclipses, and (3) changes in geomagnetism. This systematic review (PubMed, Web of Science, and Scopus; until September'24) aims to identify studies on the effects of seasonality, gravity, and geomagnetism on brain function, establishing a baseline for the proposed hypotheses. Distinct search queries were tailored to capture the relevant literature. Behavioral and observational data support the hypotheses, with limited EEG/MRI evidence indicating potential neural correlates, although most research is cross-sectional and preliminary. Future work should employ well-powered, longitudinal, and hypothesis-driven designs to clarify the observed effects, thereby confirming or challenging competing views.
