Abstract
The aim of this study is to develop the estimation model that provides the level of mental stress using physiological response. Physiological indices were recorded during psychological load such as watching slideshow including uncomfortable images or tiny "Sudoku" task in participants. Multiple regression model in which target variable was subjective stress index STAI was obtained using the measured physiological responses. The figure shows the result of STAI score and the correlation coefficient was 0.80. The results indicated the possibility of the objective evaluation for mental stress though it is necessary to investigate the optimal psychological load for the evaluation.
