Linked Life Data

313135

Source:http://linkedlifedata.com/resource/pubmed/id/313135

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1979-8-16
pubmed:abstractText
Two blue cone monochromats and four rod monochromats have been studied by increment threshold measurements applying the Stiles' principle. Some rudimentary colour discrimination was reported by the blue cone monochromats. One patient showed good discrimination between short- and middle-wavelength lights in matching experiments using the Nagel II apparatus. His neutral band in the spectrum was at lambda = 485--495 nm. Dichromatic vision could not be proved in the other patient. The blue cone monochromats also had good responding blue mechanism in the periphery. Indication of cone activity other than blue cones is found in both kinds of monochromats; these cones being probably of the rhodopsin-cone type (pi0 cones). The conclusions are drawn that the inhibitory effect of the pi0 cones upon the rod mechanism may account for the differences shown by our two blue cone monochromats as to visual acuity, nystagmus and photophobia. Likewise, their differences regarding dichromatic vision may be explained by an unequal number of pi0 cones in their retinas rather than by differences in their blue mechanisms.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0001-639X
pubmed:author
pubmed:issnType
Print
pubmed:volume
57
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
211-24
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Typical and atypical monochromacy studied by specific quantitative perimetry.
pubmed:publicationType
Journal Article, Case Reports