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Repetition blindness has a perceptual locus: evidence from online processing of targets in RSVP streamsFour experiments tested whether repetition blindness (RB; reduced accuracy reporting repetitions of briefly displayed items) is a perceptual or a memory-recall phenomenon. RB was measured in rapid serial visual presentation (RSVP) streams, with the task altered to reduce memory demands. In Experiment 1 only the number of targets (1 vs. 2) was reported, eliminating the need to remember target identities. Experiment 2 segregated repeated and nonrepeated targets into separate blocks to reduce bias against repeated targets. Experiments 3 and 4 required immediate "online" buttonpress responses to targets as they occurred. All 4 experiments showed very strong RB. Furthermore, the online response data showed clearly that the 2nd of the repeated targets is the one missed. The present results show that in the RSVP paradigm, RB occurs online during initial stimulus encoding and decision making. The authors argue that RB is indeed a perceptual phenomenon.
Document ID
20040088333
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Johnston, James C.
(NASA Ames Research Center Moffett Field CA United States)
Hochhaus, Larry
Ruthruff, Eric
Date Acquired
August 21, 2013
Publication Date
April 1, 2002
Publication Information
Publication: Journal of experimental psychology. Human perception and performance
Volume: 28
Issue: 2
ISSN: 0096-1523
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other

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