PSY 1101 Lecture Notes - Lecture 2: Neurotransmission, Central Nervous System, Cerebral Cortex

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Brenda Baird

Document Summary

Main points: the nervous system, neurotransmission, study of the brain (methods, major structures of the brain, subcortical structures & function, organization of the cortex. Neurons and neuronal communication: the structure of a neuron. Brings information to the central nervous system ex: touching something hot will send information from ngers to the central nervous system. Associates sensory and motor activity in the central nervous system. From the brain to the cns (central nervous system) called afferent. Sends signals from the brain and spinal cord to muscles. From cns to the brain called efferent. Myelin sheath: when the neuron is at rest, the inside is negatively charged relative to the outside. 70mv: when the nurd is simulated, positively charged particles enter. The action potential is initiated the neuron is depolarized. +na enters: after a brief period, some positively charged particles are pushed outside the neuron, and the neuron moved back toward its polarized state.