Back to Search
Start Over
Prominence of delta oscillatory rhythms in the motor cortex and their relevance for auditory and speech perception.
- Source :
-
Neuroscience and biobehavioral reviews [Neurosci Biobehav Rev] 2019 Dec; Vol. 107, pp. 136-142. Date of Electronic Publication: 2019 Sep 10. - Publication Year :
- 2019
-
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.<br /> (Copyright © 2019 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-7528
- Volume :
- 107
- Database :
- MEDLINE
- Journal :
- Neuroscience and biobehavioral reviews
- Publication Type :
- Academic Journal
- Accession number :
- 31518638
- Full Text :
- https://doi.org/10.1016/j.neubiorev.2019.09.012