PSYC 212 Lecture Notes - Lecture 4: Receptive Field, Membrane Potential, Potassium Channel

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Reza Farivar

Document Summary

Microscope see what is made of and what is inside. The individual tissue constituents do not have inherent light contrast. The amount of light transmitted across the tissue is almost constant. Very difficult to create light contrast in the brain. The launch of neuroscience the discovery of the golgi method: silver staining method allowed for visualization of neuron and their process. What is not a part of a neuron: A neuron: dentrities, soma (cell body), axon, terminal (cid:2) (cid:2) (cid:2) (cid:2) (cid:2) (cid:2) You put an electrode inside a cell and compare it with another outside. There are more positively charged ions outside of the cell. With electrodes in place, you monitor both voltage and conductance. You notice the when the voltage suddenly changes, the conductance increases. C. the membrane is more porous to the movements of ions. You suspect the flow of sodium ions into the cell at the beginning of an action potential.