TL;DR: 166 children, two different chart labels, one consistent brain pattern. Stronger resting-state coupling between the left middle frontal gyrus and the posterior cingulate cortex tracked clinician-rated autism severity — even in children whose primary diagnosis was ADHD. The same pipeline found no comparable signal for ADHD severity itself. Key Findings One frontoparietal–default mode bridge …
TL;DR: A virtual smile or glare landed best with direct eye contact. Sadness only looked believable when the eyes pointed downward — sideways did the opposite. Fear refused to follow the theory at all. Two experiments testing whether digital characters need their gaze to do the emotional work their faces are already doing. Key Findings …
TL;DR: “Low-risk” drinking guidelines treat anything under 60 drinks a month as biologically quiet. A 2026 MRI study in Alcohol says the aging cortex disagrees. In healthy non-smokers consuming within guideline limits, the interaction of age and lifetime drinks tracked with lower cortical blood flow and thinner cortex — especially in frontal and parietal regions. …
TL;DR: Cognitive enrichment is usually sold as a crossword-puzzle slogan. This Neurology study treated it as a life-course exposure — books and language before age 18, midlife resources, mentally active old age — and tracked 1,939 dementia-free adults for 7.6 years. One unit higher lifetime enrichment was linked to 38% lower Alzheimer’s dementia hazard. The …
TL;DR: Ketamine lifts depression scores fast, but anhedonia — the inability to learn from positive outcomes — is what disables many patients. This translational study put the same probabilistic reward task in front of treatment-resistant depression patients and chronically stressed rats. Within 24 hours, ketamine restored reward bias to healthy-control levels in both species. General …
TL;DR: Fish oil has an automatic reputation as brain-protective. This Cell Reports study complicates it. EPA — the omega-3 fatty acid in fish oil — accumulated in the brain at baseline, then was selectively depleted after repetitive mild traumatic brain injury, alongside weakened angiogenic repair programs. Postmortem CTE tissue showed parallel vascular-metabolic changes. The “fish …
TL;DR: The Mediterranean diet is usually framed in cardiometabolic terms — cholesterol, blood pressure, glucose. A 2025 Frontiers in Nutrition study in 49 older adults with atrial fibrillation looked one biological layer deeper. Better diet adherence tracked with higher circulating Humanin and SHMOOSE — tiny microproteins encoded by mitochondrial DNA — and Humanin sat inside …
TL;DR: Alzheimer’s is usually framed as toxic protein buildup. This Nature Neuroscience mouse study points to something earlier and more specific. In APP knock-in mice, memory failed before tissue did — because dopamine fibers reaching the lateral entorhinal cortex stopped delivering their teaching signal. Optogenetic reactivation rescued learning. So did L-DOPA. Key Findings L-DOPA rescued …
TL;DR: The complement story in schizophrenia has been narrated as “too much pruning.” A new CSF-and-plasma study sharpens it. In healthy brains, C4A and C1Q move together. In first-episode psychosis, they decouple — and the near-twin protein C4B does not show the same disease pattern. The interesting signal is not inflammation rising as a whole; …
TL;DR: Loneliness in BPD didn’t come from wanting too much. It came from a gap — patients rated themselves as unusually fair and prosocial, but didn’t expect the same from anyone else. The bigger that asymmetry, the lonelier they were. Key Findings Higher prosocial self-view = higher loneliness in BPD only: The same self-image that …
