TY - JOUR
T1 - Effect of Omitting Offset Work on Functional Near-Infrared Spectroscopy
T2 - Comparison Between Keyboard and Voice Response
AU - Kikuchi, Senichiro
AU - Nishizawa, Yusuke
AU - Tsuchiya, Kenji
AU - Shimoda, Kaori
AU - Miwakeichi, Fumikazu
AU - Mori, Hiroki
AU - Tamai, Hideaki
AU - Nishida, Masaki
N1 - Funding Information:
The authors would like to thank Megumi Isoda, Wakana Nomura, and Yuna Yoshizawa for their help with the fNIRS examination, Sota Nakaya for assistance with programing, and Akira Iiduka for schedule coordination.
Funding Information:
This work was supported by Grant-in-Aid (C) (KAKENHI: JP16K01497) from the Ministry of Education, Culture, Science, and Technology (MEXT) of Japan. The funder had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. Acknowledgements
Publisher Copyright:
© 2020, Taiwanese Society of Biomedical Engineering.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Purpose: When examining cerebral activity, it is important to decrease a subject’s fatigue with an appropriate task design that also maintains data quality. This study evaluated how well devices designed to reduce fatigue would affect functional near-infrared spectroscopy (fNIRS) data. Method: A WOT-100 10-channel wearable fNIRS system was used to study the prefrontal areas of thirteen healthy volunteers. The stimulation task was a consistent incongruent Stroop test, but with two variations. First, the subjects’ answers could be delivered either by vocalization or keyboard output. Second was whether or not there was an offset such as simple finger movements or vocalization during control periods. Four sessions using both variations were performed. The relative changes of fNIRS data during the stimulation periods were used as a marker for cerebral activity. Results: There was only a significant difference in two channels (Channel 3: p = 0.040, Channel 9: p = 0.022) when voice output was used. Conclusion: The result might have been due to voice output being generated from the temporal area, near the prefrontal area. We found that the omission of offset with keyboard output might be possible as there was only a small effect, but offset with voice output is necessary.
AB - Purpose: When examining cerebral activity, it is important to decrease a subject’s fatigue with an appropriate task design that also maintains data quality. This study evaluated how well devices designed to reduce fatigue would affect functional near-infrared spectroscopy (fNIRS) data. Method: A WOT-100 10-channel wearable fNIRS system was used to study the prefrontal areas of thirteen healthy volunteers. The stimulation task was a consistent incongruent Stroop test, but with two variations. First, the subjects’ answers could be delivered either by vocalization or keyboard output. Second was whether or not there was an offset such as simple finger movements or vocalization during control periods. Four sessions using both variations were performed. The relative changes of fNIRS data during the stimulation periods were used as a marker for cerebral activity. Results: There was only a significant difference in two channels (Channel 3: p = 0.040, Channel 9: p = 0.022) when voice output was used. Conclusion: The result might have been due to voice output being generated from the temporal area, near the prefrontal area. We found that the omission of offset with keyboard output might be possible as there was only a small effect, but offset with voice output is necessary.
KW - Block design
KW - Examinee burden
KW - Functional near-infrared spectroscopy
KW - Offset work
KW - Output method
KW - Stroop test
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U2 - 10.1007/s40846-020-00563-2
DO - 10.1007/s40846-020-00563-2
M3 - Article
AN - SCOPUS:85090158461
SN - 1609-0985
VL - 40
SP - 899
EP - 907
JO - Journal of Medical and Biological Engineering
JF - Journal of Medical and Biological Engineering
IS - 6
ER -