Title: What is required for a signal to be qualified as a “grouping” tag?
Authors: Kogo, Naoki
Wagemans, Johan # ×
Issue Date: Aug-2011
Publisher: Cambridge University Press
Series Title: British Journal of Psychology vol:102 pages:676-681
Abstract: In our commentary paper (Dry, Kogo, Putzeys, & Wagemans, 2010) on “The utility of image descriptions in the initial stages of vision: a case study of printed text” (Watt & Dakin, 2010a), we raised a few concerns about the approach to perceptual grouping proposed by Watt and Dakin. Specifically, we argued that the “overlap tokens” resulting from convolution with Gabor filters do not reflect the global configuration of the image and hence that they would not be able to reproduce cases of context-sensitive perception such as illusory contours in the Kanizsa image. In their reply to our commentary, Watt and Dakin (2010b) showed that the responses of their model do reflect the illusory contours. In the present brief commentary paper, we explain why their data are problematic. The crucial problem is that illusory contours are not mere borderlines drawn in the gap between the pacmen. Instead, the perception of the illusory contours corresponds to the existence of border-ownership signals, which reflect the global configuration of the image.
ISSN: 0007-1269
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory for Experimental Psychology
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
Kogo Wagemans BJP 2011.pdf Published 199KbAdobe PDFView/Open


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science