A 2026 ENIGMA-OCD preprint tested a transformer model on resting-state fMRI from 1,706 participants and reached AUROC = 0.653 ± 0.039 for OCD classification.1 The more important result was the failure mode: held-out-site performance ranged from AUROC 0.427 to 0.819, which is exactly the gap clinical AI has to close before brain-scan diagnosis is credible. …
A 2025 iScience study found that nighttime caffeine increased motor impulsivity in Drosophila, with dose-dependent loss-of-inhibition events across n = 30-32 flies per behavioral condition and stronger effects in female flies than male flies.1 The result does not prove that an evening coffee makes humans reckless, but it sharpens a neglected point: caffeine’s alertness benefit …
A 2026 neuroscience review argues that chemotherapy-induced peripheral neurotoxicity should not be treated as a purely peripheral nerve problem: CIPN affects 70-90% of patients during chemotherapy, persists chronically in 20-30% of survivors, and may interact with central sensitization, pain networks, mood, sleep, and chemobrain.1 The strongest claim is mechanistic connection, not proof that neuropathy alone …
A 2026 multicenter Italian cohort followed 216 early Parkinson’s disease patients for 24 months after levodopa initiation and found sex/gender differences in non-motor symptom burden.1 Women had higher anxiety, pain, mobility, and emotional-well-being burden, while men had higher hypersexuality. Research Highlights Longitudinal sample: The study followed 216 early levodopa-naive Parkinson patients, including 139 men and …
A 2026 preprint involving 31 children and adolescents treated for medulloblastoma found that silent verb-generation fMRI separated pre- from post-radiotherapy scans with 80.7% leave-one-subject-out accuracy (p = 0.0149).1 The signal points to early cerebellar-cerebral language-network change, not yet to a proven long-term cognitive endpoint. Research Highlights Classifier performance was above chance: A linear support-vector machine …
A Cell Reports study tied C9orf72-related ALS/FTD inflammation to a gut-bacterial product: inflammatory microbial glycogen appeared in 15 of 22 ALS fecal samples, 1 of 1 C9orf72-frontotemporal dementia sample, and 4 of 12 healthy controls.1 The result supports a narrower gene-by-microbial-product mechanism that makes C9orf72 loss of function more inflammatory. Research Highlights Human samples carried …
A 2026 automated MRI analysis of 153 adults with first cortical middle cerebral artery stroke found that remote deep gray nuclei changes were already measurable within 21 days, and 2 asymmetry markers independently predicted 3-month disability change: putamen volume Z-score asymmetry (β = −0.24; p = 0.021) and thalamic apparent diffusion coefficient asymmetry (β = …