Investigation of summation mechanisms in the pupillomotor system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F14%3A00078357" target="_blank" >RIV/00216224:14110/14:00078357 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00159816:_____/14:00061437

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00417-014-2677-4" target="_blank" >http://dx.doi.org/10.1007/s00417-014-2677-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00417-014-2677-4" target="_blank" >10.1007/s00417-014-2677-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of summation mechanisms in the pupillomotor system

Popis výsledku v původním jazyce

To ascertain whether the pupillary response amplitude shows spatial summation of responses with increasing size of retinal stimulation, and to examine the pupillary responses for evidence of surround inhibition, analogous to that found in the receptive fields of the retinal ganglion cells. By means of infrared-video-pupillography, the pupil reaction to stimuli of increasing size (1-15A degrees) was measured in 30 normal subjects. Four different retinal locations (0A degrees, 20A degrees and 40A degreeseccentricity on the upper temporal retina and 20A degrees eccentricity on the lower nasal retina) were examined at four different stimulus luminances (17, 47, 87 and 140 cd/m(2)). When the average log amplitude of the pupil light reaction from the 30 subjects is plotted as a function of the log area of the stimulus, a bi-linear response is observed, which is most pronounced for the two higher luminances. The intersection points of the two linear responses are 2.01A degrees in the fovea,

Název v anglickém jazyce

Investigation of summation mechanisms in the pupillomotor system

Popis výsledku anglicky

To ascertain whether the pupillary response amplitude shows spatial summation of responses with increasing size of retinal stimulation, and to examine the pupillary responses for evidence of surround inhibition, analogous to that found in the receptive fields of the retinal ganglion cells. By means of infrared-video-pupillography, the pupil reaction to stimuli of increasing size (1-15A degrees) was measured in 30 normal subjects. Four different retinal locations (0A degrees, 20A degrees and 40A degreeseccentricity on the upper temporal retina and 20A degrees eccentricity on the lower nasal retina) were examined at four different stimulus luminances (17, 47, 87 and 140 cd/m(2)). When the average log amplitude of the pupil light reaction from the 30 subjects is plotted as a function of the log area of the stimulus, a bi-linear response is observed, which is most pronounced for the two higher luminances. The intersection points of the two linear responses are 2.01A degrees in the fovea,

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FF - ORL, oftalmologie, stomatologie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Graefes Archive for Clinical and Experimental Ophthalmology

ISSN

0721-832X

e-ISSN

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Svazek periodika

252

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1155-1160

Kód UT WoS článku

000338492500017

EID výsledku v databázi Scopus

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