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Published on: August 18, 2014
Neural strategies for learning during sensitive periods of development
1Department of Biology, University of Southern California, Los Angeles, CA 90089-2520, USA. bottjer@usc.edu
Abstract:
Precise patterns of neural connectivity and synaptic communication are modified by experience during restricted "sensitive" periods of development, and the circuitry and associated behaviors that emerge during such periods are frequently preserved throughout the lifespan. In many neural systems, the expression of various molecules that influence synaptic transmission and neuronal morphology are developmentally regulated and may serve to constrain the timing of enhanced sensitivity to experiential inputs. In this highly selective review I concentrate on recent findings from the visual system and the song system that provide novel insights into the mechanisms that regulate sensitive period plasticity, and that raise new questions concerning what makes sensitive periods so sensitive.
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