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  4. Basic gestalt laws cannot explain uncrowding
 
conference paper

Basic gestalt laws cannot explain uncrowding

Choung, Oh-hyeon  
•
Rashal, Einat  
•
Herzog, Michael H.  
2019
Perception
42nd European Conference on Visual Perception (ECVP 2019)

Visual crowding is the inability to perceive elements within clutter. Traditional crowding models, such as pooling, predict that performance deteriorates when flankers are added. However, this prediction has been disproved. For example, performance was found to deteriorate when a Vernier was surrounded by a single square but also to improve when more squares were added. This phenomenon is termed “uncrowding.” Previous studies showed that it is not the number of flankers that matters for uncrowding but the configuration. To understand how a configuration leads to crowding or uncrowding, we presented a Vernier surrounded by a square in the center of the screen. To that we added squares and stars that constructed different configurations according to the Gestalt laws of symmetry, closure, and good continuation. We did not find any evidence that the Gestalt laws we tested play an important role in crowding. To test for low-level factors, we also used a pixel-wise clustering method (k-means algorithm). However, we could not find evidence for the involvement of low-level factors either. We conclude that neither Gestalt laws nor basic processing can explain crowding and uncrowding. Likely, more complex aspects of display matter.

  • Details
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Type
conference paper
Web of Science ID

WOS:000486182000083

Author(s)
Choung, Oh-hyeon  
Rashal, Einat  
Herzog, Michael H.  
Date Issued

2019

Publisher

SAGE PUBLICATIONS LTD

Publisher place

London

Published in
Perception
Volume

48

Start page

28

End page

28

Subjects

Ophthalmology

•

Psychology

•

Psychology, Experimental

•

Ophthalmology

•

Psychology

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPSY  
Event nameEvent placeEvent date
42nd European Conference on Visual Perception (ECVP 2019)

Leuven, Belgium

August 25-29, 2019

Available on Infoscience
October 1, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/161721
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