Linked Life Data

3720888

Source:http://linkedlifedata.com/resource/pubmed/id/3720888

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-8-6
pubmed:abstractText
Eight cats were trained to perform a paw movement towards a moving target. The target was a lever which moved at a variable speed across an aperture situated in front of the animal, from left to right or right to left at random, but only once per trial. The animals were trained until performances stabilized in terms of precision (correct movements versus misguided ones) and speed (response time distribution of correctly guided movements). Then they underwent bilateral electrolytic lesions restricted to the pulvinar nucleus (4 cats) or to the lateral posterior nucleus (4 cats). Pre- and postoperative performances were compared. The results showed a clear difference between the two nuclei; postoperative performances after pulvinar lesion were in the preoperative range, both for precision and response time, thus allowing this group to be considered as a control lesion group. On the other hand, a marked impairment in visual guidance followed lateral posterior lesions. This deficit affected both the precision and the speed of the response, with all cats showing a tendency to increase the response time of their efficient movements. This impairment disappeared progressively except for one animal, whose lesion was especially large. We suggest that the nucleus lateral posterior is involved in the control of visually guided movements; and its role as a component of the tecto-thalamo-cortical pathway is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0014-4819
pubmed:author
pubmed:issnType
Print
pubmed:volume
62
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
596-606
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Role of the extra-geniculate pathway in visual guidance. II. Effects of lesioning the pulvinar-lateral posterior thalamic complex in the cat.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't