Is visual illusion decrement based on selective adaptation?

Clare Kathleen Porac

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Illusion decrement is the reduction in the magnitude of visual geometric illusions with continued exposure, and it has been explained in two ways. The first explanation is the selective adaptation, or fatigue, of neural channels carrying orientation and/or spatial frequency information; the second explanation involves perceptual learning, in which the observer changes viewing strategy after continued exposure to a stimulus. Either mechanism could cause changes inthe perception of a stimulus over time. One hundred twenty observers were tested in an illusion-decrement paradigm under exposure conditions that altered the amount of selective adaptation of specific neural channels. Observers were also measured on the magnitude of the transfer-of-decrement effect. Both decrement and transfer of decrement occurred, but there was no significant difference across exposure conditions. In addition, the pattern of transfer differed from that observed in selective adaptation paradigms. These results argue against a neural adaptation interpretation of illusion decrement.

Original languageEnglish (US)
Pages (from-to)279-283
Number of pages5
JournalPerception & Psychophysics
Volume46
Issue number3
DOIs
StatePublished - May 1 1989

Fingerprint

stimulus
paradigm
fatigue
Fatigue
Learning
interpretation
cause
Visual Illusion
Illusion
learning
Observer
Stimulus
Paradigm
time
Spatial Frequency
Change Perception
Causes
Perceptual Learning
Spatial Orientation

All Science Journal Classification (ASJC) codes

  • Experimental and Cognitive Psychology
  • Sensory Systems
  • Psychology(all)

Cite this

Porac, Clare Kathleen. / Is visual illusion decrement based on selective adaptation?. In: Perception & Psychophysics. 1989 ; Vol. 46, No. 3. pp. 279-283.
@article{2681c250cd83425b87cbade79f3a71d7,
title = "Is visual illusion decrement based on selective adaptation?",
abstract = "Illusion decrement is the reduction in the magnitude of visual geometric illusions with continued exposure, and it has been explained in two ways. The first explanation is the selective adaptation, or fatigue, of neural channels carrying orientation and/or spatial frequency information; the second explanation involves perceptual learning, in which the observer changes viewing strategy after continued exposure to a stimulus. Either mechanism could cause changes inthe perception of a stimulus over time. One hundred twenty observers were tested in an illusion-decrement paradigm under exposure conditions that altered the amount of selective adaptation of specific neural channels. Observers were also measured on the magnitude of the transfer-of-decrement effect. Both decrement and transfer of decrement occurred, but there was no significant difference across exposure conditions. In addition, the pattern of transfer differed from that observed in selective adaptation paradigms. These results argue against a neural adaptation interpretation of illusion decrement.",
author = "Porac, {Clare Kathleen}",
year = "1989",
month = "5",
day = "1",
doi = "10.3758/BF03208091",
language = "English (US)",
volume = "46",
pages = "279--283",
journal = "Attention, Perception, and Psychophysics",
issn = "1943-3921",
publisher = "Springer New York",
number = "3",

}

Is visual illusion decrement based on selective adaptation? / Porac, Clare Kathleen.

In: Perception & Psychophysics, Vol. 46, No. 3, 01.05.1989, p. 279-283.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Is visual illusion decrement based on selective adaptation?

AU - Porac, Clare Kathleen

PY - 1989/5/1

Y1 - 1989/5/1

N2 - Illusion decrement is the reduction in the magnitude of visual geometric illusions with continued exposure, and it has been explained in two ways. The first explanation is the selective adaptation, or fatigue, of neural channels carrying orientation and/or spatial frequency information; the second explanation involves perceptual learning, in which the observer changes viewing strategy after continued exposure to a stimulus. Either mechanism could cause changes inthe perception of a stimulus over time. One hundred twenty observers were tested in an illusion-decrement paradigm under exposure conditions that altered the amount of selective adaptation of specific neural channels. Observers were also measured on the magnitude of the transfer-of-decrement effect. Both decrement and transfer of decrement occurred, but there was no significant difference across exposure conditions. In addition, the pattern of transfer differed from that observed in selective adaptation paradigms. These results argue against a neural adaptation interpretation of illusion decrement.

AB - Illusion decrement is the reduction in the magnitude of visual geometric illusions with continued exposure, and it has been explained in two ways. The first explanation is the selective adaptation, or fatigue, of neural channels carrying orientation and/or spatial frequency information; the second explanation involves perceptual learning, in which the observer changes viewing strategy after continued exposure to a stimulus. Either mechanism could cause changes inthe perception of a stimulus over time. One hundred twenty observers were tested in an illusion-decrement paradigm under exposure conditions that altered the amount of selective adaptation of specific neural channels. Observers were also measured on the magnitude of the transfer-of-decrement effect. Both decrement and transfer of decrement occurred, but there was no significant difference across exposure conditions. In addition, the pattern of transfer differed from that observed in selective adaptation paradigms. These results argue against a neural adaptation interpretation of illusion decrement.

UR - http://www.scopus.com/inward/record.url?scp=0024359294&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024359294&partnerID=8YFLogxK

U2 - 10.3758/BF03208091

DO - 10.3758/BF03208091

M3 - Article

C2 - 2771621

AN - SCOPUS:0024359294

VL - 46

SP - 279

EP - 283

JO - Attention, Perception, and Psychophysics

JF - Attention, Perception, and Psychophysics

SN - 1943-3921

IS - 3

ER -