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Visual MaskingTime slices through conscious and unconscious vision$
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Bruno Breitmeyer and Haluk Ogmen

Print publication date: 2006

Print ISBN-13: 9780198530671

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780198530671.001.0001

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Figural context and attention in visual masking

Figural context and attention in visual masking

(p.235) Chapter 7 Figural context and attention in visual masking
Visual Masking

Bruno G. Breitmeyer

Haluk ÖĞmen

Oxford University Press

Although object perception is influenced by a number of low-level (e.g. retinal) visuo-sensory properties, it is subject also to high-level (cortical) influences of scene context and attention. Gestalt factors of figural organization and selective attention affect how features or parts comprising perceptual objects are processed. When the target stimulus readily fits into a temporally following mask so as to define a figurally connected whole or a depiction of a three-dimensional object, the visibility of the target is less subject to the suppressive influences of the aftercoming mask stimulus. Similarly, when the target is a part of a Gestalt group, it is less subject to visual masking. Moreover, attending selectively to the target stimulus, its features or its location attenuates the suppressive effects of the mask.

Keywords:   space-based attention, object-/feature-based attention, figural context, Gestalt grouping

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