02-12-03-Revision-Brain Neurochemistry

Lesson 3

Brain Neurochemistry

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neurotransmitter that plays a key role in the nervous system

ac

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subtype of the ACh receptor we talk about

n

acetylcholine receptor (nAChrR)

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nAChRs are concentrated in the

v

tegmental area

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dopamine is transmitted along the

mesol

pathway

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Travelling along the mesolimbic pathway,

dopamine arrives at the n

accumbens

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All dopamine goes to the

f

cortex

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When someone smokes, the nAChRs are continually

de

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When someone stops smoking, nAChRs become functional again

Dopamine neurons re

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Experience of withdrawal

anx

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During resensitisation, nAChRs become

o

by ACh

as there is no nicotine to bind with them

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Constant cycle during the day

regulation

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Constant cycle during the night

regulation

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Researcher who studied smoking behaviour in

participants with schizophrenia

M