An external stimulus causes physiological arousal, which causes emotional sensation

An external stimulus engages the thalamus, which results in simultaneous physiological arousal and emotional sensation

Physiological arousal will result in different emotional sensations depending on available environmental cues

An external stimulus will be carried to the brain through afferent neurons, processed in the thalamus, and a response will be sent via efferent neurons

The purpose of emotional sensation adapted as a learning mechanism