PSYC 280 Lecture Notes - Lecture 3: Excitatory Postsynaptic Potential, Potassium Chloride, Excitatory Synapse

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 280
• Professor: Neil Watson

Document Summary

Swelling at the end of an axon (axon terminal) where ntm"s are located. Receives info in the form of excitation, creates electric potentials. Spread passively -- it"s like when you drop a pebble in a smooth surface of water. Gradually spreading (but get smaller and smaller and smaller) The point at which the stimulation occurs, it gets smaller the further you get. Where all the input information is filtered in a specific location to be integrated and processed. Neuron uses this to decide if it should become excited. Corresponds to the axon of the neuron, to axon terminal. Squid can activate its escape mechanism and jet away. Take the nerve cell away, you can keep it alive in a dish, and then study its behaviour. Voltage difference of inside and outside of a cell at resting potential. Negative 70 milivolts from outside to inside (mv) Moves cell towards an action potential when it"s beyond threshold.