Frequency-doubling illusion
id:
frequency-doubling-illusion-262-4880833
title:
Frequency-doubling illusion
text:
The frequency-doubling illusion is an apparent doubling of spatial frequency when a sinusoidal grating is modulated rapidly in temporal counterphase. Recently, it has been proposed that the illusion arises from a spatially nonlinear ganglion cell class. The contrast threshold values needed for perceiving this physiological effect are used in frequency doubling technology perimetry for the detection of even early phases of glaucoma.
A more recent study's results argue against the hypothesis that
brand slug:
wiki
category slug:
encyclopedia
description:
Apparent doubling of spatial frequency
original url:
https://en.wikipedia.org/wiki/Frequency-doubling_illusion
date created:
date modified:
2022-02-05T11:56:30Z
main entity:
{"identifier":"Q5502848","url":"https://www.wikidata.org/entity/Q5502848"}
image:
fields total:
13
integrity:
14