Infants Perceive Three-Dimensional Subjective Contours. (December 2018)

• Record Type: Journal Article
• Authors: Kavšek, Michael; Braun, Stephanie
• Is Part Of: Perception. Volume 47:Number 12(2018)
• Page Start: 1153
• Page End: 1165
• Publication Date: 2018-12
• Subjects: infant vision -- perceptual development -- three-dimensional illusory contours -- subjective Kanizsa contours -- stereoscopic vision; Perception -- Periodicals; Perception -- Periodicals; Perception; Periodicals; 153.705
• DOI: 10.1177/0301006618811051
• Languages: English
• ISSNs: 0301-0066

Abstract

The addition of crossed horizontal disparity enhances the clarity of illusory contours compared to pictorial illusory contours and illusory contours with uncrossed horizontal disparity. Two infant-controlled habituation–dishabituation experiments explored the presence of this effect in infants 5 months of age. Experiment 1 examined whether infants are able to distinguish between a Kanizsa figure with crossed horizontal disparity and a Kanizsa figure with uncrossed horizontal disparity. Experiment 2 tested infants for their ability to differentiate between a Kanizsa figure with crossed horizontal disparity and a two-dimensional Kanizsa figure. The results provided evidence that the participants perceived the two- and the three-dimensional illusory Kanizsa contour, the illusory effect in which was strengthened by the addition of crossed horizontal disparity.