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The SynapseFunction, Plasticity, and Neurotrophism$
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Motoy Kuno

Print publication date: 1994

Print ISBN-13: 9780198546870

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198546870.001.0001

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Molecular cascades in learning

Molecular cascades in learning

Chapter:
(p.110) 8 Molecular cascades in learning
Source:
The Synapse
Author(s):

Motoy Kuno

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198546870.003.0113

Learning is behavioural modification resulting from experience. Since all behaviour reflects actions of the nervous system, behavioural modification must result from changes in the behaviour of the nervous system. Hence, lasting plasticity in neuronal function is a prerequisite for learning. Biophysical substrates for neuronal plasticity have been examined in the vertebrate. At the synaptic level, plasticity is expressed by changes in the amount of transmitter released or in the sensitivity of postsynaptic receptors for the transmitter. Although each synaptic function that is modulated during plasticity must be described individually, we can begin to discern some features common to several systems at the molecular level. For example, persistent plastic changes appear to require the activation of intracellular second messengers or the phosphorylation of certain proteins.

Keywords:   behavioural modification, learning, nervous system, neuronal function, neuronal plasticity, phosphorylation

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