NRSC 277 Lecture Notes - Lecture 23: Parahippocampal Gyrus, Papez Circuit, Limbic System
Document Summary
James-lange theory - emotion experienced is response to physiological changes in the body. Cannon-bard theory - emotions occur independent of emotional expression. No corre ation with physio ogica state (e otion = (cid:335)fee ing(cid:336)) We now know that neither ar completely feeling; both are tied together. Unconscious emotions - stimulus can have emotional impact without conscious awareness. Aversive conditioning to masked stimulus results in increased skin conductance. Increased activity in the amygdala - (center of fear and anger) Many possible ways for the brain to process emotional info. Different emotions may depend on different neural circuits. Involved in emotion, learning and memory, and with visceral and motor responses involved in defense and reproduction. Broca"s li bic lobe - areas of brain forming a ring around corpus callosum. Cingulate gyrus, medial surface, temporal lobe, hippocampus. Limbic structures, including cortex, are involved in emotion. Emotional system on the medial wall of the brain linking cortex with hypothalamus.
