Original ResearchPublished 9 October 2026Polysomnographic and nocturnal heart rate correlates of cognitive impairment in Parkinson’s disease: a cross-sectional studyZhang Linwei · Lv Pu · Wang Lu · Zhang Xiangfei · Wang Kang · Jin MiaoFrontiers in Neurologydoi 10.3389/fneur.2026.1913495
Original ResearchPublished 7 October 2026Sex differences in sleep architecture among patients with severe mental disorders: a polysomnographic studyZhimin Lan · Wei Lin · Meng Wang · Xiaofang Chen · Meihong Xiu · Anle PanFrontiers in Psychiatrydoi 10.3389/fpsyt.2026.1876676
Original ResearchPublished 9 September 2026EEG correlates of sleep stages, sleep discrepancy, and insomnia: a comparative analysis of people with insomnia and healthy sleepers using spectral power and sample entropyJoseph T. LeCheminant · Daniel B. Kay · Brent Feland · Chongming Yang · Jonathan BlotterFrontiers in Sleepdoi 10.3389/frsle.2026.1882890
Original ResearchPublished 25 August 2026Polysomnographic characteristics of excessive daytime sleepiness in postmenopausal women with obstructive sleep apneaThanida Manitchotpisit · Pansak Sugkraroek · Charnsiri Segsarnviriya · Naricha Chirakalwasan · Mart MaiprasertFrontiers in Sleepdoi 10.3389/frsle.2026.1853970
Hypothesis and TheoryPublished 14 August 2026Sleep bruxism: a novel theoretical perspective through the lens of the free energy principle (FEP)Edward Owens · Pedro MayoralFrontiers in Behavioral Neurosciencedoi 10.3389/fnbeh.2026.1920406
