Linked Life Data

9764535

Source:http://linkedlifedata.com/resource/pubmed/id/9764535

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1998-12-30
pubmed:abstractText
Parvocellular (P-) and magnocellular (M-) cells in the marmoset LGN can receive prominent rod input up to relatively high illuminance levels (Kremers et al., 1997b). In the present paper, we quantify rod and cone input strengths under different retinal illuminance levels. The stimulus was based on the so-called "silent substitution" method. The activities of P- and M-cells of dichromatic animals were recorded extracellularly. We were able to adequately describe the response amplitudes and phases by a vector summation of rod and cone signals. At low retinal illuminance levels, the cells' responses were determined by rod and cone inputs. With increasing illuminances the strength of the cone input increased relative to the rod strength. But, we often found significant rod inputs up to illuminances equivalent to 700 td in the human eye or more. Rod input strength was more pronounced in cells with receptive fields at large retinal eccentricities. The phase differences between rod and cone inputs suggest that the rod signals lag about 45 ms behind the cone signals.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0952-5238
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
931-43
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Interaction between rod and cone signals in responses of lateral geniculate neurons in dichromatic marmosets (Callithrix jacchus).
pubmed:affiliation
Department of Experimental Ophthalmology, University of Tübingen Eye Hospital, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't