Size (mostly) doesn't matter: the role of set size in object substitution masking

Filmer, Hannah L., Mattingley, Jason B. and Dux, Paul E. (2014) Size (mostly) doesn't matter: the role of set size in object substitution masking. Attention, Perception, and Psychophysics, 76 6: 1620-1629. doi:10.3758/s13414-014-0692-5

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Author Filmer, Hannah L.
Mattingley, Jason B.
Dux, Paul E.
Title Size (mostly) doesn't matter: the role of set size in object substitution masking
Journal name Attention, Perception, and Psychophysics   Check publisher's open access policy
ISSN 1943-393X
Publication date 2014-08-01
Year available 2014
Sub-type Article (original research)
DOI 10.3758/s13414-014-0692-5
Open Access Status File (Author Post-print)
Volume 76
Issue 6
Start page 1620
End page 1629
Total pages 10
Place of publication New York, NY United States
Publisher Springer New York
Language eng
Abstract Conscious detection and discrimination of a visual target stimulus can be prevented by the presentation a spatially nonoverlapping, but temporally trailing, visual masking stimulus. This phenomenon, known as object substitution masking (OSM), has long been associated with spatial attention, with diffuse attention seemingly being key for the effect to be observed. Recently, this hypothesis has been questioned. We sought to provide a definitive test of the involvement of spatial attention in OSM by using an eight-alternative forced choice task under a range of mask durations, set sizes, and target/distractor spatial configurations. The results provide very little evidence that set size, and thus the distribution of spatial attention, interacts with masking magnitude. These findings have implications for understanding the mechanisms underlying OSM and the relationship between consciousness and attention.
Keyword Attention
Visual awareness
Visual perception
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID DP110102925
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
Official 2015 Collection
School of Psychology Publications
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Citation counts: TR Web of Science Citation Count  Cited 16 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
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