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Paper Abstract and Keywords
Presentation 2020-01-30 16:10
Analysis of temporal characteristics of NIRS signals associated with short-term memory tasks
Kenta Baba, Keiko Fukuda (TMCIT) CAS2019-75 ICTSSL2019-44
Abstract (in Japanese) (See Japanese page) 
(in English) In order to evaluate cognitive function by NIRS measurement, we analyzed the brain activity with short-term memory task which induce working memory activity. First, the brain activity was measured by fMRI with the experimental task, and it was confirmed that a brain response was obtained in the area where processing such as memory, spatial understanding, and verbalization of visual stimuli were performed. Then, NIRS measurement was performed on the same subject using the same task. After averaging, the difference between the brain response of the task (memory) and that of the control (non-memory) was analyzed. The increase in oxygenated hemoglobin concentration change and the decrease in deoxygenated hemoglobin concentration change were observed in the right side of the forehead. The changes, which reflect to the brain activity, were observed in the similar area to that of fMRI. Further, the changes seemed to correspond to the process of memorization, storage and recall. Thus, this experimental task is considered to be effective for comparing subjects and measuring changes over time of the same subject by NIRS measurement.
Keyword (in Japanese) (See Japanese page) 
(in English) NIRS / N-back task / working memory / fMRI / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 400, CAS2019-75, pp. 65-68, Jan. 2020.
Paper # CAS2019-75 
Date of Issue 2020-01-23 (CAS, ICTSSL) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee ICTSSL CAS  
Conference Date 2020-01-30 - 2020-01-31 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To CAS 
Conference Code 2020-01-ICTSSL-CAS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of temporal characteristics of NIRS signals associated with short-term memory tasks 
Sub Title (in English)  
Keyword(1) NIRS  
Keyword(2) N-back task  
Keyword(3) working memory  
Keyword(4) fMRI  
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1st Author's Name Kenta Baba  
1st Author's Affiliation Tokyo Metropolitan College of Industrial Technology (TMCIT)
2nd Author's Name Keiko Fukuda  
2nd Author's Affiliation Tokyo Metropolitan College of Industrial Technology (TMCIT)
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Speaker Author-1 
Date Time 2020-01-30 16:10:00 
Presentation Time 20 minutes 
Registration for CAS 
Paper # CAS2019-75, ICTSSL2019-44 
Volume (vol) vol.119 
Number (no) no.400(CAS), no.401(ICTSSL) 
Page pp.65-68 
#Pages
Date of Issue 2020-01-23 (CAS, ICTSSL) 


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