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TL;DR: A 2026 cross-sectional NHANES analysis in Depression and Anxiety found that urinary pyrethroid metabolite 3-PBA showed a dose-dependent association with depression, while female participants showed stronger associations for 3-PBA and 4F-3-PBA, while mal…
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TL;DR: A 2026 preprint deep brain stimulation biomarker study in medRxiv found that home-recorded electrophysiology biomarkers tracked stable depression recovery during SCC DBS, while the biomarkers helped distinguish recovery from nonspecific symptom fluctuat…
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TL;DR: A 2026 PTSD neuroimaging and language-analysis study in Neuropsychopharmacology found that hippocampal activity encoded specific semantic content of traumatic and neutral autobiographical memories, while greater hippocampal sensitivity to autobiographic…
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TL;DR: A 2026 Nature Communications study found that mouse hippocampal CA3 connectivity shifts from dense-random early wiring to sparse-structured adult wiring, with weaker single synapses that make memory-network output depend on coordinated input rather than…
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TL;DR: A 2026 preprint longitudinal cohort analysis in medRxiv found that later-born cohorts showed higher memory levels entering old age and slower rates of memory decline, while the projected 20-year cohort advantage at age 80 was large enough in the model t…
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TL;DR: A 2026 Sex Roles study using NLSY97 data found that the gender friendship gap in best-friend closeness was driven mainly by white men, while Black men, Latino men, and women across groups reported more similar closeness after controls. Key Findings NLSY…
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TL;DR: A 2026 longitudinal analysis in the Journal of Affective Disorders tracked 635 older adults with new-onset loneliness and found that cognitive decline matched controls before loneliness began, then accelerated after onset, especially when loneliness per…
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TL;DR: A 2026 Human Brain Mapping study combined PET receptor imaging with speech functional MRI, or fMRI, in healthy adults and found that GABA signaling and striatal dopamine release interacted with brain activity during human speech control. Key Findings PE…
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TL;DR: A 2026 preprint on medRxiv using the Harvard Biomarkers Study found that 43% of Parkinson’s disease patients had depression, anxiety, sleep apnea, or restless legs syndrome, compared with 21% of controls. Key Findings 1,224-person cohort: Researchers an…
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TL;DR: A 2026 study in Cell Reports used electroencephalography (EEG), a brain-wave recording method, in 92 nappers to identify four mental states across wakefulness, sleep onset, and light sleep, including a bizarre dream-like state with reduced frontal-occip…
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