Abstract
To examine the neural mechanism of co-speech gesture production, we measured brain activity of bilinguals during an animation-narration task using near-infrared spectroscopy. The task of the participants was to watch two stories via an animated cartoon, and then narrate the contents in their first language (Ll) and second language (L2), respectively. The participants showed significantly more gestures in L2 than in L1. The number of gestures lowered at the ending part of the narration in L1, but not in L2. Analyses of concentration changes of oxygenated hemoglobin revealed that activation of the left inferior frontal gyrus (IFG) significantly increased during gesture production, while activation of the left posterior superior temporal sulcus (pSTS) significantly decreased in line with an increase in the left IFG. These brain activation patterns suggest that the left IFG is involved in the gesture production, and the left pSTS is modulated by the speech load.
| Original language | English |
|---|---|
| Pages (from-to) | 77-81 |
| Number of pages | 5 |
| Journal | Brain and Language |
| Volume | 125 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Apr 1 2013 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Medicine(all)
- Language and Linguistics
- Experimental and Cognitive Psychology
- Linguistics and Language
- Cognitive Neuroscience
- Speech and Hearing
Cite this
Co-speech gesture production in an animation-narration task by bilinguals : A near-infrared spectroscopy study. / Terai, Misato; Saito, Hirofumi; Li, Zongfeng; Zhao, Wenjun.
In: Brain and Language, Vol. 125, No. 1, 01.04.2013, p. 77-81.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Co-speech gesture production in an animation-narration task by bilinguals
T2 - A near-infrared spectroscopy study
AU - Terai, Misato
AU - Saito, Hirofumi
AU - Li, Zongfeng
AU - Zhao, Wenjun
PY - 2013/4/1
Y1 - 2013/4/1
N2 - To examine the neural mechanism of co-speech gesture production, we measured brain activity of bilinguals during an animation-narration task using near-infrared spectroscopy. The task of the participants was to watch two stories via an animated cartoon, and then narrate the contents in their first language (Ll) and second language (L2), respectively. The participants showed significantly more gestures in L2 than in L1. The number of gestures lowered at the ending part of the narration in L1, but not in L2. Analyses of concentration changes of oxygenated hemoglobin revealed that activation of the left inferior frontal gyrus (IFG) significantly increased during gesture production, while activation of the left posterior superior temporal sulcus (pSTS) significantly decreased in line with an increase in the left IFG. These brain activation patterns suggest that the left IFG is involved in the gesture production, and the left pSTS is modulated by the speech load.
AB - To examine the neural mechanism of co-speech gesture production, we measured brain activity of bilinguals during an animation-narration task using near-infrared spectroscopy. The task of the participants was to watch two stories via an animated cartoon, and then narrate the contents in their first language (Ll) and second language (L2), respectively. The participants showed significantly more gestures in L2 than in L1. The number of gestures lowered at the ending part of the narration in L1, but not in L2. Analyses of concentration changes of oxygenated hemoglobin revealed that activation of the left inferior frontal gyrus (IFG) significantly increased during gesture production, while activation of the left posterior superior temporal sulcus (pSTS) significantly decreased in line with an increase in the left IFG. These brain activation patterns suggest that the left IFG is involved in the gesture production, and the left pSTS is modulated by the speech load.
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UR - http://www.scopus.com/inward/citedby.url?scp=84875595361&partnerID=8YFLogxK
U2 - 10.1016/j.bandl.2013.01.004
DO - 10.1016/j.bandl.2013.01.004
M3 - Article
C2 - 23454618
AN - SCOPUS:84875595361
VL - 125
SP - 77
EP - 81
JO - Brain and Language
JF - Brain and Language
SN - 0093-934X
IS - 1
ER -