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Psychology (7,812)
PSYB65H3 (519)
Lecture

PSYB65 LECTURE 4

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Department
Psychology
Course
PSYB65H3
Professor
Michael Inzlicht
Semester
Fall

Description
PSYB65 Lecture 4y Info comes into dendrites exceptions action potential to firey Dendrites get excited to stimulus NA comes in neuron positive charge and becomes positive in region Reaches threshold ion channel lots of NA comes large potential sodium influxy Schizophrenicover excited dopaminey Parkinsons diseaselow under excited dopamineLifecycle of a transmitter 1 Transmitter has to be synthesized ex Acetyl CoA and choline2 Storage Once transmitters synthesized way of storing them has to be packaged to be utilizedIf it is not packaged or not packaged properly destroyed broken down by chemicalsStorage 3 Synaptic vesicle with neurotransmitter move toward the presynaptic membrane and released released when there is an action potential activation of presynaptic neuron when neuron fires 4 Has to interact with postsynaptic receptorInteract with receptor so stimulate postsynaptic receptor to open channels If doesnt open channels cannot open 5 Has to be destroyed for a new signal method of inactivation 2 ways of doing it6 Reuptake takes transmitter back up to presynaptic cell 7 Inactivation breakdown or degradation Chemicals to break down transmitter ex Acetylcholine is broken down by acetylcholinera
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