Table 5.

Characteristics of basic emotions.

Emotion	Stimulus event	Behavioral reaction	Function	Opposite emotion
Joy	Gain of a valued object	Retain or repeat	Gain resources	Sadness
Trust	Member of the group	Groom	Mutual support	Disgust
Fear	Threat	Escape	Safety	Anger
Surprise	Unexpected event	Stop	Gain time to orient	Anticipation
Sadness	Loss of a valued object	Cry	Reattach to the lost object	Joy
Disgust	Unpalatable object	Vomit	Eject poison	Trust
Anger	Obstacle	Attack	Destroy obstacle	Fear
Anticipation	New territory	Map	Knowledge of territory	Surprise