Document Detail

The relationship of neurogenesis and growth of brain regions to song learning.
MedLine Citation:
PMID:  19853905     Owner:  NLM     Status:  MEDLINE    
Song learning, maintenance and production require coordinated activity across multiple auditory, sensory-motor, and neuromuscular structures. Telencephalic components of the sensory-motor circuitry are unique to avian species that engage in song learning. The song system shows protracted development that begins prior to hatching but continues well into adulthood. The staggered developmental timetable for construction of the song system provides clues of subsystems involved in specific stages of song learning and maintenance. Progressive events, including neurogenesis and song system growth, as well as regressive events such as apoptosis and synapse elimination, occur during periods of song learning and the transitions between variable and stereotyped song during both development and adulthood. There is clear evidence that gonadal steroids influence the development of song attributes and shape the underlying neural circuitry. Some aspects of song system development are influenced by sensory, motor and social experience, while other aspects of neural development appear to be experience-independent. Although there are species differences in the extent to which song learning continues into adulthood, growing evidence suggests that despite differences in learning trajectories, adult refinement of song motor control and song maintenance can require remarkable behavioral and neural flexibility reminiscent of sensory-motor learning.
John R Kirn
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Publication Detail:
Type:  Journal Article; Review     Date:  2009-10-23
Journal Detail:
Title:  Brain and language     Volume:  115     ISSN:  1090-2155     ISO Abbreviation:  Brain Lang     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-19     Completed Date:  2011-01-28     Revised Date:  2014-01-16    
Medline Journal Info:
Nlm Unique ID:  7506220     Medline TA:  Brain Lang     Country:  United States    
Other Details:
Languages:  eng     Pagination:  29-44     Citation Subset:  IM    
Copyright Information:
Copyright © 2009 Elsevier Inc. All rights reserved.
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MeSH Terms
Brain / physiology*
Learning / physiology*
Neural Pathways / physiology
Neurogenesis / physiology*
Songbirds / physiology
Vocalization, Animal / physiology*
Grant Support
R01 DC004724-08/DC/NIDCD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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