PSY 150A1 Lecture Notes - Lecture 1: Myelin, Behavioral Neuroscience, Reuptake

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 150A1
• Professor: Cynthia Erickson

Document Summary

Biology of the mind, sometimes called neuroscience or biopsychology. The mind and the brain are the same thing. Dendrites (receives incoming signals from other neurons) Axon (the extension of a neuron that carries messages away from the cell body) Myelin sheath: fat that wraps around the axons. Synapse: junction between a sending neuron and a receiving neuron. Bridges anon of one neuron w the dendrites of another neuron. Neurotransmitters: chemical messengers released into the junctions between neurons. Reuptake: absorption of excess neurotransmitter neurons by. Electrical : within neurons, communication is electrical. Low levels of serotonin linked to depression. Drugs that treat depression act as serotonin synapses. Too much dopamine can cause schizophrenia: too much dopamine, treated with drugs. Nerves: information travels through axons that are bundled into cables. Neural networks: collections of neurons that do a specific task. Electrochemical communication network: includes all body"s neurons. Peripheral: anything thats not in the spinal cord.