The perception of moving subjective contours by 4-month-old infants

Michael Kavšek, Albert Yonas

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We investigated whether 4-month-old infants are capable of perceiving illusory contours produced by the Kanizsa-square display, first introduced by Prazdny (1983, Perception & Psychophysics 34 403-404), which tests whether a viewer perceives the illusory contour in the absence of brightness contrast (illusory brightness). Because the illusory square appears to move across the computer screen and infants are attracted to motion, this display holds their interest. In experiment 1, 4-month-old infants were tested for their ability to distinguish between a continuously moving illusory square and a continuously moving control display in which the pacman elements were rotated so that the perception of subjective contours did not occur. Data analysis revealed a significant preference for the subjective contour display. In experiment 2, habituation-dishabituation was used with 4-month-old infants. They were tested for their ability to discriminate between the illusory Kanizsa square that continuously moved back and forth and an illusory square which changed positions randomly. Although the infants did not show differences in dishabituation as a function of the habituation display, they looked significantly longer at the continuously moving display.

Original languageEnglish (US)
Pages (from-to)215-227
Number of pages13
JournalPerception
Volume35
Issue number2
DOIs
StatePublished - Apr 4 2006

Fingerprint

Display devices
Aptitude
Form Perception
Luminance
Psychophysics
Experiments

Cite this

The perception of moving subjective contours by 4-month-old infants. / Kavšek, Michael; Yonas, Albert.

In: Perception, Vol. 35, No. 2, 04.04.2006, p. 215-227.

Research output: Contribution to journalArticle

Kavšek, Michael ; Yonas, Albert. / The perception of moving subjective contours by 4-month-old infants. In: Perception. 2006 ; Vol. 35, No. 2. pp. 215-227.
@article{f9d7bec75404499ea82fe231c8a28dbf,
title = "The perception of moving subjective contours by 4-month-old infants",
abstract = "We investigated whether 4-month-old infants are capable of perceiving illusory contours produced by the Kanizsa-square display, first introduced by Prazdny (1983, Perception & Psychophysics 34 403-404), which tests whether a viewer perceives the illusory contour in the absence of brightness contrast (illusory brightness). Because the illusory square appears to move across the computer screen and infants are attracted to motion, this display holds their interest. In experiment 1, 4-month-old infants were tested for their ability to distinguish between a continuously moving illusory square and a continuously moving control display in which the pacman elements were rotated so that the perception of subjective contours did not occur. Data analysis revealed a significant preference for the subjective contour display. In experiment 2, habituation-dishabituation was used with 4-month-old infants. They were tested for their ability to discriminate between the illusory Kanizsa square that continuously moved back and forth and an illusory square which changed positions randomly. Although the infants did not show differences in dishabituation as a function of the habituation display, they looked significantly longer at the continuously moving display.",
author = "Michael Kavšek and Albert Yonas",
year = "2006",
month = "4",
day = "4",
doi = "10.1068/p5260",
language = "English (US)",
volume = "35",
pages = "215--227",
journal = "Perception",
issn = "0301-0066",
publisher = "Pion Ltd.",
number = "2",

}

TY - JOUR

T1 - The perception of moving subjective contours by 4-month-old infants

AU - Kavšek, Michael

AU - Yonas, Albert

PY - 2006/4/4

Y1 - 2006/4/4

N2 - We investigated whether 4-month-old infants are capable of perceiving illusory contours produced by the Kanizsa-square display, first introduced by Prazdny (1983, Perception & Psychophysics 34 403-404), which tests whether a viewer perceives the illusory contour in the absence of brightness contrast (illusory brightness). Because the illusory square appears to move across the computer screen and infants are attracted to motion, this display holds their interest. In experiment 1, 4-month-old infants were tested for their ability to distinguish between a continuously moving illusory square and a continuously moving control display in which the pacman elements were rotated so that the perception of subjective contours did not occur. Data analysis revealed a significant preference for the subjective contour display. In experiment 2, habituation-dishabituation was used with 4-month-old infants. They were tested for their ability to discriminate between the illusory Kanizsa square that continuously moved back and forth and an illusory square which changed positions randomly. Although the infants did not show differences in dishabituation as a function of the habituation display, they looked significantly longer at the continuously moving display.

AB - We investigated whether 4-month-old infants are capable of perceiving illusory contours produced by the Kanizsa-square display, first introduced by Prazdny (1983, Perception & Psychophysics 34 403-404), which tests whether a viewer perceives the illusory contour in the absence of brightness contrast (illusory brightness). Because the illusory square appears to move across the computer screen and infants are attracted to motion, this display holds their interest. In experiment 1, 4-month-old infants were tested for their ability to distinguish between a continuously moving illusory square and a continuously moving control display in which the pacman elements were rotated so that the perception of subjective contours did not occur. Data analysis revealed a significant preference for the subjective contour display. In experiment 2, habituation-dishabituation was used with 4-month-old infants. They were tested for their ability to discriminate between the illusory Kanizsa square that continuously moved back and forth and an illusory square which changed positions randomly. Although the infants did not show differences in dishabituation as a function of the habituation display, they looked significantly longer at the continuously moving display.

UR - http://www.scopus.com/inward/record.url?scp=33645375650&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645375650&partnerID=8YFLogxK

U2 - 10.1068/p5260

DO - 10.1068/p5260

M3 - Article

VL - 35

SP - 215

EP - 227

JO - Perception

JF - Perception

SN - 0301-0066

IS - 2

ER -