The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
일반적으로 자율신경계가 동공을 조절하는 것으로 알려져 있습니다. 본 연구에서는 동공 영역의 변동 리듬을 기반으로 정신적 작업량을 평가하려고 시도했습니다. 호흡간격을 조절하면서 0.05분 동안 정신적 작업을 하는 동안 동공면적을 측정하였다. 호흡 간격을 모니터링하기 위해 호흡 곡선을 동시에 측정했습니다. 우리는 피험자에게 두 가지 정신적 작업을 수행하도록 요구했습니다. 하나는 수학적 나눗셈 과제였는데, 난이도는 0.15배, 0.35배, 0.4배, XNUMX배로 설정됐다. 다른 하나는 메모리 세트 수에 따라 정의되는 XNUMX가지 작업 수준이 있는 Sternberg 메모리 검색 작업이었습니다. 스턴버그 메모리 검색에서 메모리 세트 개수가 XNUMX개에서 XNUMX개로 변경되었습니다. 이런 식으로 우리는 정신부하로 인한 정신부하를 변화시켰습니다. AR(autoregressive) 파워 스펙트럼을 계산한 결과, 낮은 작업량에서 혈압 변화와 호흡동성 부정맥에 해당하는 두 개의 피크를 관찰할 수 있었습니다. 작업량이 증가함에 따라 호흡동 부정맥과 관련된 스펙트럼 피크가 사라졌습니다. 낮은 주파수 대역(XNUMX~XNUMXHz)의 전력과 호흡 주파수 대역(XNUMX~XNUMXHz)의 전력 비율은 작업 수준에 따라 증가했습니다. 결론적으로, 동공 영역의 변동은 정신적 작업량이나 자율신경계 기능을 평가하는 데 유망한 수단입니다.
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Atsuo MURATA, Hirokazu IWASE, "Evaluation of Mental Workload by Variability of Pupil Area" in IEICE TRANSACTIONS on Information,
vol. E83-D, no. 5, pp. 1187-1190, May 2000, doi: .
Abstract: It is generally known that the autonomic nervous system regulates the pupil. In this study, we attempted to assess mental workload on the basis of the fluctuation rhythm in the pupil area. Controlling the respiration interval, we measured the pupil area during mental tasking for one minute. We simultaneously measured the respiration curve to monitor the respiration interval. We required the subject to perform two mental tasks. One was a mathematical division task, the difficulty of which was set to two, three, four, and five dividends. The other was a Sternberg memory search task, which had four work levels defined by the number of memory sets. In the Sternberg memory search, the number of memory set changed from five to eight. In such a way, we changed the mental workload induced by mental loading. As a result of calculating an autoregressive (AR) power spectrum, we could observe two peaks which corresponded to the blood pressure variation and respiratory sinus arrhythmia under a low workload. With an increased workload, the spectral peak related to the respiratory sinus arrhythmia disappeared. The ratio of the power at the low frequency band, from 0.05-0.15Hz, to the power at the respiration frequency band, from 0.35-0.4Hz, increased with the work level. In conclusion, the fluctuation of the pupil area is a promising means for the evaluation of mental workload or autonomic nervous function.
URL: https://global.ieice.org/en_transactions/information/10.1587/e83-d_5_1187/_p
부
@ARTICLE{e83-d_5_1187,
author={Atsuo MURATA, Hirokazu IWASE, },
journal={IEICE TRANSACTIONS on Information},
title={Evaluation of Mental Workload by Variability of Pupil Area},
year={2000},
volume={E83-D},
number={5},
pages={1187-1190},
abstract={It is generally known that the autonomic nervous system regulates the pupil. In this study, we attempted to assess mental workload on the basis of the fluctuation rhythm in the pupil area. Controlling the respiration interval, we measured the pupil area during mental tasking for one minute. We simultaneously measured the respiration curve to monitor the respiration interval. We required the subject to perform two mental tasks. One was a mathematical division task, the difficulty of which was set to two, three, four, and five dividends. The other was a Sternberg memory search task, which had four work levels defined by the number of memory sets. In the Sternberg memory search, the number of memory set changed from five to eight. In such a way, we changed the mental workload induced by mental loading. As a result of calculating an autoregressive (AR) power spectrum, we could observe two peaks which corresponded to the blood pressure variation and respiratory sinus arrhythmia under a low workload. With an increased workload, the spectral peak related to the respiratory sinus arrhythmia disappeared. The ratio of the power at the low frequency band, from 0.05-0.15Hz, to the power at the respiration frequency band, from 0.35-0.4Hz, increased with the work level. In conclusion, the fluctuation of the pupil area is a promising means for the evaluation of mental workload or autonomic nervous function.},
keywords={},
doi={},
ISSN={},
month={May},}
부
TY - JOUR
TI - Evaluation of Mental Workload by Variability of Pupil Area
T2 - IEICE TRANSACTIONS on Information
SP - 1187
EP - 1190
AU - Atsuo MURATA
AU - Hirokazu IWASE
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E83-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 2000
AB - It is generally known that the autonomic nervous system regulates the pupil. In this study, we attempted to assess mental workload on the basis of the fluctuation rhythm in the pupil area. Controlling the respiration interval, we measured the pupil area during mental tasking for one minute. We simultaneously measured the respiration curve to monitor the respiration interval. We required the subject to perform two mental tasks. One was a mathematical division task, the difficulty of which was set to two, three, four, and five dividends. The other was a Sternberg memory search task, which had four work levels defined by the number of memory sets. In the Sternberg memory search, the number of memory set changed from five to eight. In such a way, we changed the mental workload induced by mental loading. As a result of calculating an autoregressive (AR) power spectrum, we could observe two peaks which corresponded to the blood pressure variation and respiratory sinus arrhythmia under a low workload. With an increased workload, the spectral peak related to the respiratory sinus arrhythmia disappeared. The ratio of the power at the low frequency band, from 0.05-0.15Hz, to the power at the respiration frequency band, from 0.35-0.4Hz, increased with the work level. In conclusion, the fluctuation of the pupil area is a promising means for the evaluation of mental workload or autonomic nervous function.
ER -