Inhibition within a premotor circuit controls the timing of vocal turn-taking in zebra finches.

ABSTRACT: Vocal turn-taking is a fundamental organizing principle of human conversation but the neural circuit mechanisms that structure coordinated vocal interactions are unknown. The ability to exchange vocalizations in an alternating fashion is also exhibited by other species, including zebra finches. With a combination of behavioral testing, electrophysiological recordings, and pharmacological manipulations we demonstrate that activity within a cortical premotor nucleus orchestrates the timing of calls in socially interacting zebra finches. Within this circuit, local inhibition precedes premotor neuron activation associated with calling. Blocking inhibition results in faster vocal responses as well as an impaired ability to flexibly avoid overlapping with a partner. These results support a worki

SUBMITTER: Benichov JI 

PROVIDER: S-EPMC6954284 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature