Back
When crowding of crowding leads to uncrowding.
Journal article

When crowding of crowding leads to uncrowding.

  • Manassi M Laboratory of Psychophysics, Brain Mind Institute, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
  • Sayim B
  • Herzog MH
  • 2013-11-12
Published in:
  • Journal of vision. - 2013
contextual modulation
crowding
grouping
hierarchical processing
vernier acuity
Female
Form Perception
Humans
Male
Pattern Recognition, Visual
Sensory Thresholds
Visual Acuity
Visual Fields
English In object recognition, features are thought to be processed in a hierarchical fashion from low-level analysis (edges and lines) to complex figural processing (shapes and objects). Here, we show that figural processing determines low-level processing. Vernier offset discrimination strongly deteriorated when we embedded a vernier in a square. This is a classic crowding effect. Surprisingly, crowding almost disappeared when additional squares were added. We propose that figural interactions between the squares precede low-level suppression of the vernier by the single square, contrary to hierarchical models of object recognition.
Language
  • English
Open access status
gold
Identifiers
Persistent URL
https://sonar.ch/global/documents/102470
Statistics
Document views: 6 File downloads: