| Organization and evolution of the avian forebrain. | |
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MedLine Citation:
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PMID: 16206213 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Early 20th-century comparative anatomists regarded the avian telencephalon as largely consisting of a hypertrophied basal ganglia, with thalamotelencephalic circuitry thus being taken to be akin to thalamostriatal circuitry in mammals. Although this view has been disproved for more than 40 years, only with the recent replacement of the old telencephalic terminology that perpetuated this view by a new terminology reflecting more accurate understanding of avian brain organization has the modern view of avian forebrain organization begun to become more widely appreciated. The modern view, reviewed in the present article, recognizes that the avian basal ganglia occupies no more of the telencephalon than is typically the case in mammals, and that it plays a role in motor control and motor learning as in mammals. Moreover, the vast majority of the telencephalon in birds is pallial in nature and, as true of cerebral cortex in mammals, provides the substrate for the substantial perceptual and cognitive abilities evident among birds. While the evolutionary relationship of the pallium of the avian telencephalon and its thalamic input to mammalian cerebral cortex and its thalamic input remains a topic of intense interest, the evidence currently favors the view that they had a common origin from forerunners in the stem amniotes ancestral to birds and mammals. |
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Authors:
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Anton Reiner; Kei Yamamoto; Harvey J Karten |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
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Title: The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology Volume: 287 ISSN: 1552-4884 ISO Abbreviation: - Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-11-01 Completed Date: 2006-03-02 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 101234285 Medline TA: Anat Rec A Discov Mol Cell Evol Biol Country: United States |
Other Details:
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Languages: eng Pagination: 1080-102 Citation Subset: IM |
Copyright Information:
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(c) 2005 Wiley-Liss, Inc. |
Affiliation:
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Department of Anatomy and Neurobiology, College of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA. areiner@utmem.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Auditory Pathways / anatomy & histology, physiology Columbidae / anatomy & histology*, physiology Evolution* Neural Pathways / anatomy & histology, physiology Prosencephalon / anatomy & histology*, physiology Rats Telencephalon / anatomy & histology, physiology Visual Pathways / anatomy & histology Vocalization, Animal / physiology |
| Grant Support | |
ID/Acronym/Agency:
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EY-05298/EY/NEI NIH HHS; NS-1960/NS/NINDS NIH HHS; NS-28721/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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