About 2 months after a concussion, adults had lower fiber density in a few white matter tracts linking the thalamus to the top of the brain, even though their thinking test scores looked normal. A 2026 study compared 39 people with mild traumatic brain injury to 28 people hurt in accidents without a head injury.1 …
A new study reanalyzed a widely cited target-shooting experiment used to support the scarcity mindset theory. That theory says money shortages focus attention on immediate needs and make future costs easier to overlook.1 Giving players fewer or more shots changed their opportunities to score and borrow, explaining results previously attributed to narrowed attention. The findings …
A 2026 German-Austrian cohort analysis found that people with schizophrenia who were taking quetiapine scored modestly higher on demanding working-memory tests than sex- and age-matched patients who were not, with the largest gap at doses of 300 mg a day or less.1 Because patients were not randomized to quetiapine, this is an association; the advantage …
A 2026 meta-analysis of 11 reports from small randomized trials found that virtual reality (VR) training modestly improved thinking-test scores in people with Alzheimer’s dementia (standardized effect 0.44), but it did not produce a clear benefit for everyday functioning, quality of life, or mood.1 The studies were small, several had design problems, and the researchers …
A 2026 PROTECT study involving 174 older adults found that self-administered fingerprick p-tau217 correlated with episodic memory (r = 0.299, p < 0.001) and GFAP correlated with working memory (r = 0.183, p = 0.034), supporting remote Alzheimer's risk triage rather than a stand-alone dementia diagnosis. Research Highlights Fingerprick sampling reached 77% completion: 174 of …
A 2026 Environmental Science & Technology experiment found that wild guppies still reduced maze solve times with practice after 11-day exposure to environmentally motivated amitriptyline concentrations, but exposed males made 26.35% to 34.21% more navigation errors than control males.1 The result is a sex-specific accuracy signal, not a blanket claim that antidepressant pollution erased learning. …
A 2026 Scottish health-system preprint used natural language processing of CT and MRI reports to subtype stroke and found that lobar intracerebral hemorrhage carried a higher dementia risk beyond 6 months, aHR 3.49 vs matched controls.1 The method reduced unspecified stroke coding from 26.1% to 3.4%, making location-specific prognosis easier to see. Research Highlights Lobar …