Contour interaction under photopic and scotopic conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73587543" target="_blank" >RIV/61989592:15310/18:73587543 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1167/18.6.5" target="_blank" >http://dx.doi.org/10.1167/18.6.5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1167/18.6.5" target="_blank" >10.1167/18.6.5</a>

Result language

angličtina

Original language name

Contour interaction under photopic and scotopic conditions

Original language description

In the present study, we asked whether contour interaction undergoes significant changes for different luminance levels in the central and peripheral visual field. This study included nine normal observers at two laboratories (five at Palacky University Olomouc, Czech Republic and four at the University of Houston, USA). Observers viewed a randomly selected Sloan letter surrounded by four equally spaced bars for several separations measured edge-to-edge in min arc. Stimuli were viewed foveally under photopic and mesopic luminances and between 5 degrees and 12 degrees peripherally for four different background luminances of the display monitors, corresponding to photopic, mesopic, scotopic, and dim scotopic levels. The extent of the contour interaction in the fovea is approximately 20 times smaller than in the periphery. Whereas the magnitude of foveal contour interaction markedly decreases with decreasing luminance, no consistent luminance-induced change occurs in peripheral contour interaction. The extent of contour interaction does not scale with the size of the target letter, either in the fovea or peripherally. The results support a neural origin of contour interaction consistent with the properties of center-surround antagonism.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30207 - Ophthalmology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Name of the periodical

JOURNAL OF VISION

ISSN

1534-7362

e-ISSN

—

Volume of the periodical

18

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

"5-1"-"5-11"

UT code for WoS article

000436425200005

EID of the result in the Scopus database

2-s2.0-85050815475