Study reveals a new role for serotonin in the development of the human neocortex. Serotonin acts cell-extrinsically as a growth factor for basal progenitors in the developing neocortex. Researchers report placenta-driven serotonin likely contributed to the evolutionary expansion of the neocortex in humans.
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.
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Researchers have identified functional features that make human neurons unique.