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How the Brain Distinguishes Speech From Noise

Published in Brain/Neurology.

Summary: Study reports a pervasive neuromodulation system strongly influences sound processing in a key auditory region of the brain. Findings suggest acetylcholine may assist in the brain’s ability to distinguish speech from other noise.

Source: Lehigh University

For the first time, researchers have provided physiological evidence that a pervasive neuromodulation system – a group of neurons that regulate the functioning of more specialized neurons – strongly influences sound processing in an important auditory region of the brain. The neuromodulator, acetylcholine, may even help the main auditory brain circuitry distinguish speech from noise.

https://neurosciencenews.com/acetylcholine-speech-hearing-17670/