PSYC18H3 Chapter Notes - Chapter 5: Olfactory System, Choline, Arson
Document Summary
Chapter 6: emotions and the brain brain regions and neurotransmitters are intimately involved in emotion. How do brain mechanisms of emotion work: human brain = 100 billion neurons, 10 thousand 150 thousand synapses o. Pet (positron emission tomography) fmri ( fuctional magnetic resonance imaging) shows brain activity changing over time in the course of different emotional states study emotional affects through: anatomy, lesions, stimulations, pharmacology, electrical recording hindbrain. The limbic system: frontal lobes: involved in planning and intentional action, emotion regulation. Neural activity in the cortex decreases when emotions are experienced, limbic system activated (pet) Neocortex: stream of thought: distinctive to higher mammals. Reptiles do not have a limbic system (evolutionary difference between reptiles & mammals: mammals have it, they are generally social creatures. Stimulation of septal parts delivered rewarding effects + induces the tendency to approach o: temporal lobe epilepsy: nerve cells in limbic system in an electrical storm that spreads to involve a progressively larger area.
