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.