Spatial frequency shifts from counterphase flicker and from simultaneous contrast

Sae Kaneko, Stuart Anstis

Research output: Contribution to journalArticlepeer-review

Abstract

In simultaneous contrast of spatial frequency (SF), a test grating surrounded by a coarser inducing grating looks apparently finer. We combined this effect with another visual illusion; the fact that flickering the inducing grating raises its apparent SF. We found that the inducer's apparent, not physical spatial frequency, drove the simultaneous contrast that it induced into a test grating. Thus, when the inducer was made to flicker, its SF appeared to be higher and consequently, the test's SF appeared lower than before. This suggests that simultaneous contrast of spatial frequency exists further downstream than the flicker-induced increase in perceived SF.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
Journali-Perception
Volume8
Issue number3
DOIs
Publication statusPublished - 2017

Keywords

  • Flicker
  • Frequency doubling
  • Simultaneous contrast
  • Spatial frequency

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Ophthalmology
  • Sensory Systems
  • Artificial Intelligence

Fingerprint Dive into the research topics of 'Spatial frequency shifts from counterphase flicker and from simultaneous contrast'. Together they form a unique fingerprint.

Cite this