PSY 1101 Lecture Notes - Lecture 1: Autonomic Nervous System, Pituitary Gland, Peripheral Nervous System

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Mark Dallas

Document Summary

Plato believed the mind was in the head. His student aristotle believed it was in the heart. Phrenology: bumps in the skull relating to different brain function: what they and biology have in common: Biological perspective: concerned with the links between: behavior genetics, physiologists etc. Dendrites: a neurons bushy, branching extensions that receive messages and conduct impulses toward the cell body. Axon: the neuron extension that passes messages through its branches to other neurons or to muscles and glands speak: can be few feet long, surface is selectively permeable. Action potential: a neural impulse; a brief electrical charge that travels down an axon. Threshold: the level of stimulation required to trigger a neural impulse system. Neuron: a nerve cell; basic building blocks of the nervous: transmit messages when stimulated by signals, or trigger generated by chemical signals from neighboring neurons, all or nothing response must meet threshold or no reaction.