Cross-Frequency Coupling in Cortical Processing of Speech

Shruthi Raghavendra1; Hyungi Chun2; Sungmin Lee3; Fei Chen4; Brett A. Martin2; Chin–Tuan Tan1

10.1109/EMBC48229.2022.9871602

2022

2375-7477

978-1-7281-2783-5

2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

25-29

11-15 July 2022

Glasgow, Scotland, United Kingdom

This study examines power-power cross-frequency coupling (CFC) between different frequency bands of cortical activity in normal-hearing (NH) listeners and its association to the processing temporal envelope (ENV) and temporal fine structure (TFS) of speech. CFC between alpha and theta bands and between gamma and theta bands was investigated when only ENV or TFS or the original speech itself were processed. Comparing the cortical activity in response to ENV and original speech, there was an increase in alpha-theta CFC and in gamma-theta CFC when listening to ENV alone. However, when comparing the response when to listening TFS alone, there was a reduction in gamma-theta CFC compared to the original speech and the alpha-theta CFC was comparable to the equivalent observed with original speech. The increase in CFC may suggest that there is more synchrony across different bands of cortical activity in processing ENV than TFS. These measures can serve as indicators when either ENV or TFS is perceived.

Couplings Biology Speech processing

其他

IEEE

1.University of Texas at Dallas, Richardson, TX, USA
2.Graduate Center, City University of New York, New York, NY, USA
3.Tongmyong University, Busan, Republic of Korea
4.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China

Shruthi Raghavendra,Hyungi Chun,Sungmin Lee,et al. Cross-Frequency Coupling in Cortical Processing of Speech[C],2022:25-29.