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Pulsed laser light turns whole-brain activity on and off | KurzweilAI

Pulsed laser light turns whole-brain activity on and off | KurzweilAI

By flashing high-frequency (40 to 100 pulses per second) optogenetic lasers at the brain’s thalamus, scientists were able to wake up sleeping rats and cause widespread brain activity. In contrast, flashing the laser at 10 pulses per second suppressed the activity of the brain’s sensory cortex and caused rats to enter a seizure-like state of unconsciousness.

Source: Pulsed laser light turns whole-brain activity on and off | KurzweilAI