Phase−amplitude coupling between theta and gamma oscillations adapts to speech rate
- Lizarazu, Mikel
- Lallier, Marie
- Molinaro, Nicola
DOIAbstract
First published: 24 April 2019Low- and high-frequency cortical oscillations play an important role in speech processing. Low-frequency neural oscillations in the delta (<4Hz) and theta (4–8 Hz) bands entrain to the prosodic and syllabic rates of speech, respectively. Theta band neural oscillations modulate high-frequency neural oscillations in the gamma band (28−40Hz), which have been hypothesized to be crucial for processing phonemes in natural speech. Since speech rate is known to vary considerably, both between and within talkers, it has yet to be determined whether this nested gamma response reflects an externally induced rhythm sensitive to the rate of the fine-grained structure of the input or a speech rate−independent endogenous re...
Add to ORKG