Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-5-15
pubmed:abstractText
A number of experimental approaches have indicated differential interneuronal connectivity following differential experience during both development and adulthood. In Golgi preparations, prolonged maze training was reported to alter dendritic branching of distal apical dendrites of Layer IV and V pyramidal neurons in adult rat occipital cortex. To determine the specificity of this effect to direct involvement in the visual aspects of training, the effects of monocular maze training, using a split-brain procedure and opaque contact occluders, was examined in the present study. Rats were maze trained with unilateral or alternating monocular occlusion, while nontrained rats with unilateral or alternating monocular occlusion were handled briefly and given water reward. There was no within-animal effect of fixed occluder position in non-trained controls. In unilaterally-occluded trained rats, Layer V pyramidal neurons in occipital cortex opposite the open eye had greater oblique dendritic length in the distal region of the apical dendrite than did those opposite the occluded eye. Similarly, rats trained with alternating occlusion had greater distal apical oblique dendritic length in Layer V occipital pyramidal neurons than did nontrained controls. This indicates that morphological sequelae of training are concentrated in areas processing information associated with visual aspects of the training and renders unlikely general metabolic or hormonal causation of such effects.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-8993
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
283-92
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Lateralized effects of monocular training on dendritic branching in adult split-brain rats.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.