Cortical oscillatory responses do not affect visual segmentation

Daniel C. Kiper, Karl R. Gegenfurtner, J. Anthony Movshon

Research output: Contribution to journalArticle

Abstract

We tested the hypothesis that synchronization of oscillatory responses between populations of visually driven neurons could be the basis for visual segmentation and perceptual grouping. We reasoned that oscillations in response induced by flickering visual targets should have an effect on visual performance in these tasks. We therefore measured the psychophysical performance of human subjects in a texture segregation task (Expt I) and in a perceptual grouping task (Expt II). In both experiments, the elements composing the stimuli were flickered and presented in a variety of flicker conditions. These experimental conditions were designed to either interfere with naturally occuring synchronization of oscillations, or to induce synchronization and bias a subject's perceptual judgment. Performance in these tasks was neither helped nor hindered by the temporal pattern of flicker. These results suggest that physiologically observed oscillatory responses are unrelated to the processes underlying visual segmentation and perceptual grouping.

Original languageEnglish (US)
Pages (from-to)539-544
Number of pages6
JournalVision Research
Volume36
Issue number4
DOIs
StatePublished - Feb 1996

Fingerprint

Task Performance and Analysis
Neurons
Population

Keywords

  • Cortical oscillations
  • Flicker
  • Visual segmentation

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

Cite this

Cortical oscillatory responses do not affect visual segmentation. / Kiper, Daniel C.; Gegenfurtner, Karl R.; Movshon, J. Anthony.

In: Vision Research, Vol. 36, No. 4, 02.1996, p. 539-544.

Research output: Contribution to journalArticle

Kiper, Daniel C. ; Gegenfurtner, Karl R. ; Movshon, J. Anthony. / Cortical oscillatory responses do not affect visual segmentation. In: Vision Research. 1996 ; Vol. 36, No. 4. pp. 539-544.
@article{febbf8f515864a15ae9d6eed6183dea6,
title = "Cortical oscillatory responses do not affect visual segmentation",
abstract = "We tested the hypothesis that synchronization of oscillatory responses between populations of visually driven neurons could be the basis for visual segmentation and perceptual grouping. We reasoned that oscillations in response induced by flickering visual targets should have an effect on visual performance in these tasks. We therefore measured the psychophysical performance of human subjects in a texture segregation task (Expt I) and in a perceptual grouping task (Expt II). In both experiments, the elements composing the stimuli were flickered and presented in a variety of flicker conditions. These experimental conditions were designed to either interfere with naturally occuring synchronization of oscillations, or to induce synchronization and bias a subject's perceptual judgment. Performance in these tasks was neither helped nor hindered by the temporal pattern of flicker. These results suggest that physiologically observed oscillatory responses are unrelated to the processes underlying visual segmentation and perceptual grouping.",
keywords = "Cortical oscillations, Flicker, Visual segmentation",
author = "Kiper, {Daniel C.} and Gegenfurtner, {Karl R.} and Movshon, {J. Anthony}",
year = "1996",
month = "2",
doi = "10.1016/0042-6989(95)00135-2",
language = "English (US)",
volume = "36",
pages = "539--544",
journal = "Vision Research",
issn = "0042-6989",
publisher = "Elsevier Limited",
number = "4",

}

TY - JOUR

T1 - Cortical oscillatory responses do not affect visual segmentation

AU - Kiper, Daniel C.

AU - Gegenfurtner, Karl R.

AU - Movshon, J. Anthony

PY - 1996/2

Y1 - 1996/2

N2 - We tested the hypothesis that synchronization of oscillatory responses between populations of visually driven neurons could be the basis for visual segmentation and perceptual grouping. We reasoned that oscillations in response induced by flickering visual targets should have an effect on visual performance in these tasks. We therefore measured the psychophysical performance of human subjects in a texture segregation task (Expt I) and in a perceptual grouping task (Expt II). In both experiments, the elements composing the stimuli were flickered and presented in a variety of flicker conditions. These experimental conditions were designed to either interfere with naturally occuring synchronization of oscillations, or to induce synchronization and bias a subject's perceptual judgment. Performance in these tasks was neither helped nor hindered by the temporal pattern of flicker. These results suggest that physiologically observed oscillatory responses are unrelated to the processes underlying visual segmentation and perceptual grouping.

AB - We tested the hypothesis that synchronization of oscillatory responses between populations of visually driven neurons could be the basis for visual segmentation and perceptual grouping. We reasoned that oscillations in response induced by flickering visual targets should have an effect on visual performance in these tasks. We therefore measured the psychophysical performance of human subjects in a texture segregation task (Expt I) and in a perceptual grouping task (Expt II). In both experiments, the elements composing the stimuli were flickered and presented in a variety of flicker conditions. These experimental conditions were designed to either interfere with naturally occuring synchronization of oscillations, or to induce synchronization and bias a subject's perceptual judgment. Performance in these tasks was neither helped nor hindered by the temporal pattern of flicker. These results suggest that physiologically observed oscillatory responses are unrelated to the processes underlying visual segmentation and perceptual grouping.

KW - Cortical oscillations

KW - Flicker

KW - Visual segmentation

UR - http://www.scopus.com/inward/record.url?scp=0030027336&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030027336&partnerID=8YFLogxK

U2 - 10.1016/0042-6989(95)00135-2

DO - 10.1016/0042-6989(95)00135-2

M3 - Article

VL - 36

SP - 539

EP - 544

JO - Vision Research

JF - Vision Research

SN - 0042-6989

IS - 4

ER -