| Are specific proteins implicated in the learning process of imprinting? | |
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MedLine Citation:
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PMID: 2331798 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Day-old chicks were exposed for 0.5 h to overhead lighting ('primed') and then imprinted by exposing them for 90 min to a rotating red box. The chicks were otherwise maintained in darkness. Immediately after training these chicks (n = 16), together with 16 primed and 16 dark-reared controls were killed. Samples from the left cerebral hemisphere were removed including (i) the intermediate and medial part of the hyperstriatum ventrale (IMHV), a region which is crucial for imprinting, (ii) the posterior neostriatum and (iii) the visual Wulst. The samples were incubated with [35S]methionine, processed for SDS slab gel electrophoresis and autoradiographs prepared. The optical densities of various bands were measured 'blind'. For no band was there a significant interaction (ANOVA) between brain region and experience. Optical density was correlated with approach activity during training, a measure of behaviour which correlates with the amount chicks learn. Only for IMHV were correlations significant: a negative correlation (P less than 0.01) for approximately 50 kDa band and positive correlation (P less than 0.001) for an approximately 80 kDa band. These results suggest that associated with training there is a reduction and an increase in the synthesis of proteins in IMHV. |
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Authors:
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M W Brown; G Horn |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Brain research. Developmental brain research Volume: 52 ISSN: 0165-3806 ISO Abbreviation: Brain Res. Dev. Brain Res. Publication Date: 1990 Mar |
Date Detail:
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Created Date: 1990-06-04 Completed Date: 1990-06-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8908639 Medline TA: Brain Res Dev Brain Res Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 294-7 Citation Subset: IM |
Affiliation:
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University of Bristol, Department of Anatomy, U.K. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain / metabolism, physiology* Chickens / physiology* Imprinting (Psychology) / physiology* Molecular Weight Nerve Tissue Proteins / metabolism* |
| Chemical | |
Reg. No./Substance:
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0/Nerve Tissue Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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