The Method for Identifying Employees’ Emotions in Adverse States Incorporating PSO-kNN Algorithm and Multiple Physiological Parameters

Table 1

Efficacy values and arousal levels of the four IAPS emotion-evoking picture materials.

Emotions	Image RMS	Image wakefulness
Excitement	6.0 ± 0.5	6.5 ± 0.5
Boredom	3.0 ± 0.5	3.5 ± 0.5
Fear	2.0 ± 0.5	7.0 ± 0.5
Calm	5.0 ± 0.5	4.0 ± 0.5