Illusory Concomitant Motion in Ambiguous Stereograms. Evidence for Nonstimulus Contributions to Perceptual Organization

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Three experiments were performed to test whether perceptual organization is cognitively or motivationally penetrable. In Experiments 1 and 2, subjects viewed a reversible stereogram while instructed to hold one depth organization. Responses about depth were recorded indirectly by recording responses about direction of the illusory concomitant motion that is perceptually coupled to depth in a stereogram. Inasmuch as perceptually coupled variables covary without necessary stimulus covariation, a postperceptual locus for any intention effects they exhibit is unlikely. Experiments 2 and 3 examined the possibility that instructed intention might influence perception indirectly by influencing eye movements: Viewers' vergence position was measured directly through responses about alignment of a vernier nonius fixation. In all three experiments, a residual effect of instructed intention was found. Therefore, instructed intention may influence perceptual organization by influencing internal nonstimulus components integral to the perceptual process.

Original languageEnglish (US)
Pages (from-to)50-60
Number of pages11
JournalJournal of Experimental Psychology: Human Perception and Performance
Volume12
Issue number1
DOIs
StatePublished - Feb 1986
Externally publishedYes

Fingerprint

Eye Movements
Experiment
Intentions
Perceptual Organization
Stimulus
Perceptual Processes
Fixation
Locus
Viewer
Alignment
Direction compound

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience
  • Cognitive Neuroscience

Cite this

@article{64ce07b450ed424085fbac4cf3e8ae73,
title = "Illusory Concomitant Motion in Ambiguous Stereograms. Evidence for Nonstimulus Contributions to Perceptual Organization",
abstract = "Three experiments were performed to test whether perceptual organization is cognitively or motivationally penetrable. In Experiments 1 and 2, subjects viewed a reversible stereogram while instructed to hold one depth organization. Responses about depth were recorded indirectly by recording responses about direction of the illusory concomitant motion that is perceptually coupled to depth in a stereogram. Inasmuch as perceptually coupled variables covary without necessary stimulus covariation, a postperceptual locus for any intention effects they exhibit is unlikely. Experiments 2 and 3 examined the possibility that instructed intention might influence perception indirectly by influencing eye movements: Viewers' vergence position was measured directly through responses about alignment of a vernier nonius fixation. In all three experiments, a residual effect of instructed intention was found. Therefore, instructed intention may influence perceptual organization by influencing internal nonstimulus components integral to the perceptual process.",
author = "Peterson, {Mary A}",
year = "1986",
month = "2",
doi = "10.1037/0096-1523.12.1.50",
language = "English (US)",
volume = "12",
pages = "50--60",
journal = "Journal of Experimental Psychology: Human Perception and Performance",
issn = "0096-1523",
publisher = "American Psychological Association Inc.",
number = "1",

}

TY - JOUR

T1 - Illusory Concomitant Motion in Ambiguous Stereograms. Evidence for Nonstimulus Contributions to Perceptual Organization

AU - Peterson, Mary A

PY - 1986/2

Y1 - 1986/2

N2 - Three experiments were performed to test whether perceptual organization is cognitively or motivationally penetrable. In Experiments 1 and 2, subjects viewed a reversible stereogram while instructed to hold one depth organization. Responses about depth were recorded indirectly by recording responses about direction of the illusory concomitant motion that is perceptually coupled to depth in a stereogram. Inasmuch as perceptually coupled variables covary without necessary stimulus covariation, a postperceptual locus for any intention effects they exhibit is unlikely. Experiments 2 and 3 examined the possibility that instructed intention might influence perception indirectly by influencing eye movements: Viewers' vergence position was measured directly through responses about alignment of a vernier nonius fixation. In all three experiments, a residual effect of instructed intention was found. Therefore, instructed intention may influence perceptual organization by influencing internal nonstimulus components integral to the perceptual process.

AB - Three experiments were performed to test whether perceptual organization is cognitively or motivationally penetrable. In Experiments 1 and 2, subjects viewed a reversible stereogram while instructed to hold one depth organization. Responses about depth were recorded indirectly by recording responses about direction of the illusory concomitant motion that is perceptually coupled to depth in a stereogram. Inasmuch as perceptually coupled variables covary without necessary stimulus covariation, a postperceptual locus for any intention effects they exhibit is unlikely. Experiments 2 and 3 examined the possibility that instructed intention might influence perception indirectly by influencing eye movements: Viewers' vergence position was measured directly through responses about alignment of a vernier nonius fixation. In all three experiments, a residual effect of instructed intention was found. Therefore, instructed intention may influence perceptual organization by influencing internal nonstimulus components integral to the perceptual process.

UR - http://www.scopus.com/inward/record.url?scp=0022670149&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0022670149&partnerID=8YFLogxK

U2 - 10.1037/0096-1523.12.1.50

DO - 10.1037/0096-1523.12.1.50

M3 - Article

C2 - 2939191

AN - SCOPUS:0022670149

VL - 12

SP - 50

EP - 60

JO - Journal of Experimental Psychology: Human Perception and Performance

JF - Journal of Experimental Psychology: Human Perception and Performance

SN - 0096-1523

IS - 1

ER -