パフォーマンス－認知負荷モデルを用いた精神負荷作業中の認知・作業状態推定手法

Abstract

In order to evaluate intellectual productivity such as the efficiency of performing mental works, several studies have been conducted where the operational logsof mental tasks were evaluated. However, it is also necessary to analyze Cognitive Loadin mental workers so that the productivity can be evaluated accurately. The authorstherefore have proposed a Performance-Cognitive Load model which deals with both taskperformance and Cognitive Load. By using the model, they have also developed the inference method of the cognitive working states which can evaluate intellectual productivityin more detail than conventional methods. The operational logs of mental tasks as wellas pupil diameter and heart rate of the worker were employed as input of this method.As the result of the subject experiment, the authors found that the feasibility of thismethod so as to evaluate cognitive working states could be suggested and this methodcould well explain the detail changes of their states. This method is expected to be thenovel evaluation method of intellectual productivity.