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Gamma Visual Stimulation Induces a Neuroimmune Signaling Profile Distinct from Acute Neuroinflammation

Exposure to light pulsing at 40 flashes per second causes brains to release a surge of signaling chemicals — small proteins called cytokines and secreted externally by cells. Increase in cytokines was seen after an hour of stimulation. The new study connects the light flicker with glial and other immune activation.

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