TL;DR: A 2026 cohort study in PLOS One found that higher fasting plasma vitamin C levels were independently associated with larger MRI-measured gray matter and stronger default mode network (DMN) structural connectivity in 2,044 older adults, but the cross-sectional design cannot show that vitamin C caused the brain differences. Key Findings Large MRI cohort: The …
TL;DR: A 2026 randomized trial in International Journal of Clinical and Health Psychology found that older adults who knowingly took placebo pills for 3 weeks reported lower stress and performed better on Digit Span than controls. Key Findings Aging trial context: The trial randomized 90 healthy community-dwelling adults in Milan, ages 65 to 90, into …
TL;DR: A 2026 study in Scientific Reports identified a novel OPHN1 K306N variant in a boy with cyclic strabismus, linking a 24-hour eye-alignment rhythm to altered phosphoinositide binding without the intellectual disability usually associated with OPHN1 syndrome. Key Findings 8-year-old patient: A Japanese boy had cyclic esotropia, with left eye crossing in the morning and …
TL;DR: A 2026 cellular neuroscience study in iScience found that GPR3, a constitutively active G-protein-coupled receptor, behaved like an immediate-early gene and helped connect CREB signaling to presynaptic maturation during neuronal differentiation. Key Findings Biphasic GPR3 induction: Gpr3 rose quickly after nerve growth factor stimulation, dipped, then increased again during later neuronal differentiation. NET-CAGE promoter …
TL;DR: A 2026 study in PLOS Computational Biology found that people overestimated an opponent’s competitiveness after betrayal, especially when they chose to watch the opponent instead of controlling their own avatar. Key Findings 62-person social task: 62 adults played a 2D prey-pursuit game with a computerized opponent whose hidden friendliness changed over time. Betrayal shifted …
TL;DR: A 2026 longitudinal study in Cerebral Cortex linked neighborhood disadvantage in childhood to lower adolescent cortical thickness and surface area, while better educational and health/environmental opportunities tracked greater MRI-estimated cortical thickness and surface area with slower developmental decline. Key Findings 11,639 adolescents: The analysis used ABCD Study neuroimaging data from 11,639 participants with at …
TL;DR: A 2026 preprint on medRxiv found that older adults with mild-cognitive-impairment-level scores showed different resting facial action patterns than healthy controls, especially upper lip raiser, lip tightener, and lip suck measures. Key Findings MCI-level comparison: The study included 45 older adults and compared 31 participants in the MCI-level group with 14 healthy controls. MoCA-defined …
TL;DR: A 2025 study in PNAS found that expert pianists changed perceived piano timbre by altering specific key-movement features, and listeners could hear intended differences in weight, clarity, and brightness without seeing the performer. Key Findings 20 expert pianists: The performance experiment recruited competition-winning pianists with an average of 25.5 years of professional piano training. …
TL;DR: A 2026 study in Nature Communications used cryo-electron microscopy and patch-clamp recordings to show how partially occupied GluK2/GluK5 kainate receptors can activate without entering the fast desensitized state that normally shuts glutamate receptors down. Key Findings Fast glutamate shutdown: Glutamate triggered receptor activation in less than 1 ms, followed by complete desensitization in about …
TL;DR: A 2026 Scientific Reports study found that a robot’s utterances shaped expected human-robot relationship structure far more than the robot’s physical appearance in Japanese online scenario experiments. Key Findings Nine pictograms: Researchers built a nine-pictogram questionnaire to capture perceived relationship structures such as balanced contribution, one-sided service, and shared goals. 510-person validation sample: Survey …
