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Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words

Abstract: 

To investigate the temporal dynamics and spatial representations in speech perception and processing, electroencephalograph (EEG) signals were recorded when subjects listening Chinese words and pseudo words. According to the source reconstruction, the early neural activations were observed in wider areas from the Spt (an area in the Sylvian fissure at the parietotemporal boundary) to the premotor cortex and posterior frontal gyrus during 35ms to 80ms, while the areas from posterior middle temporal gyrus to anterior middle temporal gyrus were activated during a time period from 110ms to 180ms. These activation patterns are consistent with the dual-stream model, where the former one corresponds to the dorsal stream and the latter one belongs to the ventral stream. These two streams interacted after 180ms and showed recurrent activation after 300ms. This phenomenon was not observed for the pseudo words. Our findings demonstrate a quite early stage of speech cognitive process and present the dynamics of interaction between the two streams during perceiving words. The results are essential for the construction of connectivity model in further studies.

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Paper Details

Authors:
Yuke Si, Jianwu Dang , Gaoyan Zhang
Submitted On:
15 October 2016 - 3:36am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Yuke Si

Document Files

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[1] Yuke Si, Jianwu Dang , Gaoyan Zhang , "Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words ", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1218. Accessed: Aug. 24, 2019.
@article{1218-16,
url = {http://sigport.org/1218},
author = {Yuke Si; Jianwu Dang ; Gaoyan Zhang },
publisher = {IEEE SigPort},
title = {Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words },
year = {2016} }
TY - EJOUR
T1 - Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words
AU - Yuke Si; Jianwu Dang ; Gaoyan Zhang
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1218
ER -
Yuke Si, Jianwu Dang , Gaoyan Zhang . (2016). Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words . IEEE SigPort. http://sigport.org/1218
Yuke Si, Jianwu Dang , Gaoyan Zhang , 2016. Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words . Available at: http://sigport.org/1218.
Yuke Si, Jianwu Dang , Gaoyan Zhang . (2016). "Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words ." Web.
1. Yuke Si, Jianwu Dang , Gaoyan Zhang . Investigation of the Spatiotemporal Dynamics of the Brain during Perceiving Words [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1218