Scientists found a new class of fine hairs in mice and neurons that connect to them. The work helps explain how touch can cause itching and could lead to new treatments for chronic itch.
Photo by Aakash Dhage, Unsplash
Researchers combined MRI scans with physics-informed AI to estimate slow fluid flow in the brain’s glymphatic system, which helps clear waste and is linked to Alzheimer’s. The team trained AI on dye videos and collected animal baseline data.
A study tested which brain systems keep newly learned speech movements. Disrupting sensory brain areas (auditory or somatosensory) reduced memory for the new speech, while disrupting the motor area did not. The finding may help speech rehabilitation.
A new study suggests hydrocephalus may result from the brain failing to absorb heartbeat pulses, not from simple fluid malabsorption. The authors point to the cerebral windkessel system and call for more imaging research and better shunt designs.
A Georgia State University study finds common cognitive screens like the MMSE may not detect the same brain changes in women and men. The results suggest sex-aware interpretation of tests and further study of hormones and genetics.