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Analysis of this vast and complex data yielded an unexpected result: The gamma rhythm, a fast signal that occurs while concentrating or learning, gradually grew stronger as the mice moved faster.
The study also verifies recent assertions that the gamma rhythm, which oscillates between 30 and 120 times every second, can be divided into slow and fast signals that originate from separate parts of the brain, Mehta said.
Dr Vreugdenhil said drinking coffee on a regular basis could increase gamma rhythms up to three-fold because of the way caffeine was concentrated in the brain.