January 2011 in “McGraw-Hill eBooks” This study found that patients with seasonal affective disorder exhibited increased functional connectivity in multiple brain networks and higher low-frequency activity in certain brain regions compared to healthy controls.
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March 2025 in “Quantitative Imaging in Medicine and Surgery” In this study, patients with alopecia areata showed altered hypothalamic activity and connectivity, which may be linked to the neurophysiological basis of psychological stress experienced by these patients, as assessed by functional MRI and correlated with neuropsychological evaluations.
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January 2011 in “Frontiers in Systems Neuroscience” The researchers reported that differences in brain functional connectivity between unmedicated seasonal affective disorder patients and healthy controls vary with ICA model order, peaking in volume at model order 70.
October 2007 in “European Neuropsychopharmacology” July 2026 in “Translational Psychiatry” This study found that individuals with both schizophrenia and obesity showed reduced PER3 gene expression amplitude and lower melatonin levels compared to normal-weight controls, suggesting dampened circadian rhythms linked to irregular sleep. Hair follicle sampling was effective for assessing these molecular rhythms.
