Short review A "voice patch" system in the primate brain for processing vocal information?

Pascal C Belin (1) , Virginia Aglieri (1)

1 INT - Institut de Neurosciences de la Timone

We review behavioural and neural evidence for the processing of information contained in conspecific vocalizations (CVs) in three primate species: humans, macaques and marmosets. We focus on abilities that are present and ecologically relevant in all three species: the detection and sensitivity to CVs; and the processing of identity cues in CVs. Current evidence, although fragmentary, supports the notion of a "voice patch system" in the primate brain analogous to the face patch system of visual cortex: a series of discrete, interconnected cortical areas supporting increasingly abstract representations of the vocal input. A central question concerns the degree to which the voice patch system is conserved in evolution. We outline challenges that arise and suggesting potential avenues for comparing the organization of the voice patch system across primate brains.

Keywords: Voice; Conspecific vocalization; Category-selective cortex; Norm-based coding; Speaker identityf; MRIComparative approach

Domains: Life Sciences [q-bio]; Life Sciences [q-bio]; Neurons and Cognition [q-bio.NC]

Pascal C Belin, Virginia Aglieri. Short review A "voice patch" system in the primate brain for processing vocal information?. Hearing Research, 2018, 366, pp.65-74. ⟨10.1016/j.heares.2018.04.010⟩. ⟨hal-02335781⟩