Linked Life Data

6102393

Source:http://linkedlifedata.com/resource/pubmed/id/6102393

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1165
pubmed:dateCreated
1980-5-23
pubmed:abstractText
Prolonged stimulation of the periphery of their receptive field can evoke in turtle cones sustained complex depolarizations or sustained membrane oscillations. In cones in which such effects of prolonged peripheral stimulation are not apparent, the injection of short depolarizing pulses can reveal a sustained increase of electrical excitability in response to prolonged peripheral illumination. The sustained effects of prolonged peripheral illumination have characteristics similar to those of the feedback depolarizations evoked by flash peripheral stimulation: they are labile in untreated retinas, can be blocked by either hyperpolarization, Co2+ or agents that depolarize the L-horizontal cells. They are associated with a decrease in the membrane input resistance. In retinas bathed in Sr2+- or Ba2+-containing media, prolonged peripheral illumination evokes a sustained repetitive discharge of spikes. These experiments demonstrate that the feedback effects of the L-horizontal cells on the cones are not only transient but also sustained and that the sustained effects of peripheral stimulations are associated with an increase in membrane Ca2+ conductance. The possible nature of the feedback connection between L-horizontal cells and the cones is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0080-4649
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
206
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
465-80
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1980
pubmed:articleTitle
Sustained feedback effects of L-horizontal cells on turtle cones.
pubmed:publicationType
Journal Article