Brief Force Bursts in the Head During Sleep Were Less Frequent in People With Brain Disease, Preprint Finds

Brief Force Bursts in the Head During Sleep Were Less Frequent in People With Brain Disease, Preprint Finds

TL;DR: A headband sensor picked up brief bursts of force inside the head during sleep in all 45 people tested. People with neurodegenerative diseases had fewer bursts per minute than healthy volunteers, in an early, not yet peer-reviewed study. Key Findings A new sleep signal: 1- to 2-second “sleep bursts” showed up in every one …

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AI Rebuilt Movies Mice Watched From Their Brain Activity

AI Rebuilt Movies Mice Watched From Their Brain Activity

TL;DR: Researchers rebuilt 10-second movie clips that mice had watched, using only recordings from about 8,000 neurons in each mouse’s visual cortex. The blurry, low-resolution results matched the originals fairly well, but this is not mind reading. Key Findings 50 clips rebuilt: Ten 10-second movies from each of 5 mice. Pixel match of 0.57: About …

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Online Tinnitus Program Linked to Less Distress After 6 Months, Most in Severe Cases

Online Tinnitus Program Linked to Less Distress After 6 Months, Most in Severe Cases

TL;DR: In 144 Norwegian tinnitus patients, an online program of retraining therapy and CBT was linked to less tinnitus distress after 6 months, most in severe cases. With no comparison group, the program can’t take full credit. Key Findings 144 patients: A 6-hour seminar, then 19 online modules over up to a year. Distress score …

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Brain-and-Muscle AI Held Up Better Than Rivals Under Simulated Fatigue, but Brain Alone Did Best

Brain-and-Muscle AI Held Up Better Than Rivals Under Simulated Fatigue, but Brain Alone Did Best

TL;DR: A new AI model that combines brain and muscle signals kept recognizing hand grips better than rival models when the muscle signals were artificially weakened to mimic fatigue. At the heaviest weakening, though, brain signals alone did better than any combined model. Key Findings Recordings from 25 healthy adults: Brain (EEG) and forearm muscle …

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Brain Feedback Training Was Easy for At-Risk Children, but Showed No Clear Gains

Brain Feedback Training Was Easy for At-Risk Children, but Showed No Clear Gains

TL;DR: Eleven Indian children whose parents had addiction or serious mental illness all completed 8 sessions of brain-activity feedback training with no side effects. Their brain signals and thinking scores did not change clearly, and there was no comparison group. Key Findings 11 children, aged 6 to 12: 9 had a parent with a substance …

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Powered Ankle Exoskeleton Made Strides More Variable but Steadied the Lower Leg

Powered Ankle Exoskeleton Made Strides More Variable but Steadied the Lower Leg

TL;DR: When 18 healthy adults walked on a treadmill wearing a powered ankle exoskeleton, their stride lengths varied more from step to step, but their lower legs and feet moved more steadily. Their overall walking rhythm did not change. Key Findings More step-to-step variation: Stride-length variability rose from 1.9% to 2.8%. Steadier near the device: …

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Forearm Stimulation Sleeve Proved Practical in Early Stroke Rehab, but Too Small a Trial to Show Benefit

Forearm Stimulation Sleeve Proved Practical in Early Stroke Rehab, but Too Small a Trial to Show Benefit

TL;DR: In a 16-person trial, stroke survivors using a forearm stimulation sleeve during hand therapy all finished the 6-week program and rated it highly. Early arm-movement scores favored the sleeve, but the trial was too small to show that it works. Key Findings 16 of 16 finished: All 12 sessions over 6 weeks, in both …

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Brain Stimulation for Stroke Arm Rehab: 95% Finished Treatment, Side Effects Mostly Mild

Brain Stimulation for Stroke Arm Rehab: 95% Finished Treatment, Side Effects Mostly Mild

TL;DR: Across 55 trials of brain stimulation for arm recovery after stroke, about 95% of people finished treatment, the same share as those given fake stimulation or usual care. Side effects were mostly mild headaches and skin tingling. Key Findings 55 trials, 2,640 people with arm weakness after stroke. Finished treatment: 94.9% with brain stimulation …

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Robot Arm Training Had the Most Consistent Gains After Stroke in a Review of 25 Trials

Robot Arm Training Had the Most Consistent Gains After Stroke in a Review of 25 Trials

TL;DR: In a review of 25 trials on arm recovery after stroke, robot-assisted training had the most consistent evidence of beating standard physical therapy. Virtual reality helped a little, and brain-computer interfaces had too little data to judge. Key Findings 25 trials, 1,145 stroke survivors: Every tech option was tested only against standard physical therapy. …

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