Story perspectives

UK Light-Induced Sleep State Preserves Mouse Memory

6/8/2026

Summary

UK Researchers Mimic

Researchers in the United Kingdom used light to silence neuronal activity in one half of awake mice brains, mimicking deep NREM sleep.
After 30 minutes of repeated stimulation, the mice showed no exhaustion signs and retained memory of a novel carpet texture.
The researchers aim to test non-invasive transcranial electrical stimulation in people, though experts say sleep’s NREM-REM cycle cannot be fully replaced.

Summary

NINDS Funds Sleep

NIH's National Institute of Neurological Disorders and Stroke funded the mouse study, highlighting its brain-health agenda.
Acting NINDS director Amy Bany Adams said the work clarifies sleep’s role in learning and could help prevent cognitive decline.
Researchers linked induced unilateral cortical sleep in mice to dolphins’ unihemispheric sleep, and plan human trials using transcranial stimulation to create comparable cortical cycles for potential neurodegenerative therapies.

Summary

Cirelli Probes Rhythms

Researchers plan to investigate how rhythmic cortical ON/OFF activity alters synaptic plasticity in awake mice.
Led by neuroscientist Chiara Cirelli, the team will use optogenetics, genetic engineering and precise electrophysiology to induce and monitor these ON/OFF periods.
The researchers aim to translate the insights into minimally invasive brain-stimulation technologies for cognitive enhancement and sleep-disorder treatment, believing mastery of the rhythms could improve brain health amid chronic sleep loss.

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UK Researchers Mimic

Researchers in the United Kingdom used light to silence neuronal activity in one half of awake mice brains, mimicking deep NREM sleep.
After 30 minutes of repeated stimulation, the mice showed no exhaustion signs and retained memory of a novel carpet texture.
The researchers aim to test non-invasive transcranial electrical stimulation in people, though experts say sleep’s NREM-REM cycle cannot be fully replaced.

1 / 3