An analysis of neural activations measured with the near infrared spectroscopy during working memory tasks: To study the estimation of fatigue with intellectual work and diagnosis of psychiatric disorders

The WM (working memory) is the essential element of intellectual work, thus the estimation of fatigue from neural activations in the WM task is important to control the stress with intellectual work. Furthermore, these WM evaluations from neural activities are useful for an improvement of diagnosis of psychiatric disorders. In this study, we investigate the relationship with the hemodynamic changes measured with Near Infrared spectroscopy during the WM task and the WM performance. Furthermore, we show the difference of the hemodynamics in delay time between correct-tasks and incorrect-tasks.