PSYC 1000 Lecture Notes - Lecture 4: Myelin, Neuroglia, Behavioural Genetics

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1000
• Professor: paulabarata

Document Summary

Biological psychology: the scientific study links between biological and psychological processes. neuroscience; behavioural genetics; evolutionary psychology; behavioural microbiology. 1 group of rats (isolated), impoverished environment, but had sufficient food and water. 1 group of rats that are in an enriched environment, but had rotating toys (something new to play with) 1 group of controlled rats (adequate food and water) Myelin: insulating layer of fatty material composed of glial cells helps efficient transmission of signals to other cells gaps in myelin sheath are nodes of ranvier. Action potential: an electrical impulse that begins at the cell body and makes its way down to the other neurons little by little. Enzyme deactivation binding to auto receptors passively drift out of the synaptic gap. Glutamate- an excitatory transmitter (makes an action potential more likely) Gaba- an inhibitory transmitter (makes action potential less likely)