en
Scientific article
Review
English

Prominence of delta oscillatory rhythms in the motor cortex and their relevance for auditory and speech perception

Published inNeuroscience and Biobehavioral Reviews, vol. 107, p. 136-142
Publication date2019
Abstract

In the motor cortex, beta oscillations (∼12-30 Hz) are generally considered a principal rhythm contributing to movement planning and execution. Beta oscillations cohabit and dynamically interact with slow delta oscillations (0.5-4 Hz), but the role of delta oscillations and the subordinate relationship between these rhythms in the perception-action loop remains unclear. Here, we review evidence that motor delta oscillations shape the dynamics of motor behaviors and sensorimotor processes, in particular during auditory perception. We describe the functional coupling between delta and beta oscillations in the motor cortex during spontaneous and planned motor acts. In an active sensing framework, perception is strongly shaped by motor activity, in particular in the delta band, which imposes temporal constraints on the sampling of sensory information. By encoding temporal contextual information, delta oscillations modulate auditory processing and impact behavioral outcomes. Finally, we consider the contribution of motor delta oscillations in the perceptual analysis of speech signals, providing a contextual temporal frame to optimize the parsing and processing of slow linguistic information.

Citation (ISO format)
MORILLON, Benjamin et al. Prominence of delta oscillatory rhythms in the motor cortex and their relevance for auditory and speech perception. In: Neuroscience and Biobehavioral Reviews, 2019, vol. 107, p. 136–142. doi: 10.1016/j.neubiorev.2019.09.012
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0149-7634
279views
0downloads

Technical informations

Creation12/03/2019 2:23:00 PM
First validation12/03/2019 2:23:00 PM
Update time03/15/2023 6:31:21 PM
Status update03/15/2023 6:31:21 PM
Last indexation01/17/2024 8:25:32 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack