PSYB64H3 Lecture Notes - Lecture 10: Facial Feedback Hypothesis, Trigeminal Nerve, Facial Nerve
Document Summary
Facial nerve (cranial nerve vii) and trigeminal nerve (cranial nerve v) Upper third controlled differently than lower two thirds. Pathways motor cortex (voluntary expression) and subcortical system (spontaneous expression) Basic expressions common across cultures: happiness, surprise, disgust, sadness, fear, contempt, anger, embarrassment. No specific training seems to be required to identify them. Other expressions seem to be a blending of these. Presence of others influences intensity of emotional expression. Eg: people make more intense facial expressions in response to odors when in a group as opposed to when they are alone. Functional mris may be used to detect changes in brain activation during lying. Theories of emotion: james-lange theory, cannon-bard theory, schachter-singer theory, contemporary theories of emotion. Physical states of each type of feeling are highly distinct and we are capable of. James-lange theory labeling these states as separate feelings. Ans produces different patterns of arousal during different emotional states. Role of amygdala in identification and expression of emotion.
