Priming of object detection under continuous flash suppression depends on attention but not on part-whole configuration

Article


Stein, Timo, Thoma, V. and Sterzer, Philipp 2015. Priming of object detection under continuous flash suppression depends on attention but not on part-whole configuration. Journal of Vision. 15 (3), pp. 15-15.
AuthorsStein, Timo, Thoma, V. and Sterzer, Philipp
Abstract

Previous research has shown that the identification of visual objects can rely on both view-dependent, holistic as well as view-independent, analytic representation, depending on visual attention. Here, we asked whether
the initial conscious detection of objects reveals similar dependencies and may therefore share similar perceptual mechanisms. We used continuous flash suppression to render objects presented in familiar views invisible at the beginning of a trial and recorded the time these target objects needed to break into awareness. Target objects were preceded by spatially attended or unattended primes that were either shown in the same familiar view as the targets or horizontally split (i.e., with their halves swapping positions) in order
to disrupt holistic processing. Relative to an unprimed baseline, suppression times were shorter for all priming conditions. Although spatial attention enhanced this priming effect on access to awareness, even unattended
primes facilitated awareness of a related target, indicating that object detection does not fully concur with the idea of attention-demanding analytic object representations. Moreover, priming effects were of similar strength for primes shown in the same familiar view as the targets and for horizontally split primes, indicating that holistic (template-like) representations do
not play an integral role in object detection. These results suggest that the initial detection of an object relies on representations of object features rather than holistic representations used for recognition. The perceptual mechanisms mediating conscious object detection are therefore markedly different from those underlying object identification.

JournalJournal of Vision
Journal citation15 (3), pp. 15-15
ISSN1534-7362
Year2015
PublisherAssociation for Research in Vision and Ophthalmology (ARVO)
Accepted author manuscript
License
CC BY
Digital Object Identifier (DOI)doi:10.1167/15.3.15
Publication dates
Print24 Mar 2015
Publication process dates
Deposited07 Apr 2015
Accepted12 Feb 2015
FunderSeventh Framework Programme
Copyright information© 2015 ARVO.
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