PSYB64H3 Chapter Notes - Chapter 14: Cranial Nerve Nucleus, Ventromedial Prefrontal Cortex, Autonomic Nervous System
Document Summary
Charles darwin emotional expression evolved=beneficial change=improve chances of survival. Emotion contributes to general arousal when brain perceives situation requiring action emotion provide arousal needed to trigger response. Emotions manage approach and withdrawal behaviours relative to particular environmental stimuli. Enhance survival by helping us communicate nonverbal communication: use of facial expressions, gestures, and body language to communicate ideas and feelings. Movement of human face controlled by two cranial nerves: facial (vii-superficial muscles), & trigeminal (v-deeper muscles) figure 14. 2, p. 404 facial nerves originate in two facial nuclei: cranial nerve nuclei, located on either side of midline in pons. Receive input from primary motor cortex (located in precentral gyrus of frontal lobe, serveral subcortical motor areas) Biological influences on emotional expression figure 14. 4, p. 406 major emotional expressions universal across human cultures children"s capacities for emotional expression and recognition develop at fairly regular timeline. Presence of others influences intensity of emotional expression.
