An iScience EEG study found that approximately 80 minutes of natural smartphone use was interleaved with transient beta bursts, especially over bilateral sensorimotor cortex, and touchscreen intervals became longer when sensorimotor bursts were present.1 Research Highlights Natural smartphone behavior carried beta bursts: participants used smartphones with the right thumb for approximately 80 minutes while EEG …
A 2026 randomized exploratory pilot found that a single 24-minute yoga session did not significantly lower salivary cortisol or salivary alpha-amylase compared with quiet sitting in 19 stressed adults.1 The acute yoga signal was physiological but not the simple stress-biomarker drop that wellness claims often imply. Research Highlights Biomarker claim failed: Yoga did not significantly …
A 2026 mechanistic study involving 28 healthy adults found that a single 25 mg psilocybin session changed acute brain entropy, psychological insight, well-being, cognitive flexibility, and some MRI-derived white-matter signals for up to 1 month. Research Highlights Acute brain entropy rose clearly: 25 mg psilocybin increased Lempel-Ziv complexity (LZc; a measure of signal irregularity) at …
A 2026 EEG-ECG preprint reported that beta efficiency-sympathetic coupling differed across healthy young adults, healthy older adults, and Parkinson’s disease patients, p = 0.0032, while gamma efficiency-sympathetic coupling differed at p = 0.0003.1 The main claim is that motor, cognitive, and autonomic physiology may be coupled tightly enough to deserve biomarker-level study. Research Highlights Brain-heart …
Psychiatric brain biomarkers have produced a large research literature but little routine clinical use. A 2026 evidence map found 441 primary studies and 27 systematic reviews of neuroimaging or neurophysiologic biomarkers for mental-health disorders, yet the field still looks too small, cross-sectional, and depression-heavy for ordinary diagnostic or treatment decisions.1 Research Highlights Large map, weak …
A 2026 medRxiv preprint did not find one simple autism excitation-inhibition signature. Bertelsen et al. found 2 EEG-derived E:I neurosubtypes in 286 autistic males: a 47% inhibition-dominant subtype with higher Hurst exponent and lower gamma, and a 53% excitation-dominant subtype with the opposite pattern.1 Research Highlights Two subtypes, opposite directions: in 286 autistic males ages …
A 2026 diagnostic-accuracy preprint found that resting-state EEG network features separated non-lesional epilepsy from functional/dissociative seizures (FDS) at 67.5% balanced accuracy, but the signal was not symmetrical: sensitivity was 81.8% for epilepsy and only 53.3% for FDS.1 In plain clinical terms, the model looked more useful as an epilepsy-supporting marker than as a positive test …