Beyond Broca: Neural Architecture and Evolution of a Dual Motor Speech Coordination System [post]

Gregory Hickok, Jonathan Henry Venezia, Alex Teghipco
2021 unpublished
Classical neural architecture models of speech production propose a single system coordinating all the vocal articulators from lips to larynx. Here we propose a dual coordination system in which laryngeal control of pitch-related aspects of prosody and song are controlled by a dorsal premotor system while supralaryngeal articulation at the phonetic/syllabic level is controlled by a ventral premotor system. The separability of these neural systems supports models of the evolution of speech and
more » ... nguage in which song-based communication was an early foundational stage.
doi:10.31234/ fatcat:rphd6ivozzc63ogay4qey2bpd4