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Poster Session B: Wednesday, August 13, 1:00 – 4:00 pm, de Brug & E‑Hall

Sensorimotor Integration in the Dorsal Speech Processing Stream via Directed Beta-Band Interactions

Olivia Bizimungu¹, Lucie Ménard, S Baillet¹; ¹McGill University

Presenter: Olivia Bizimungu

Speech processing relies on dorsal stream brain circuitry linking speech sounds with their articulatory representations (Hickok & Poeppel, 2007). We investigated sensorimotor integration along the dorsal stream by measuring frequency-specific directed connectivity between auditory and frontoparietal brain regions during a categorical speech perception task. Beta-band (13-29Hz) interactions between auditory and sensorimotor cortex related to perceptual behaviour, including when participants' articulatory configuration was mechanically perturbed. These findings advance the neurophysiology of sensorimotor integration in speech perception.

Topic Area: Language & Communication

Extended Abstract: Full Text PDF