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Moving attention - Evidence for time-invariant shifts of visual selective attentionTwo experiments measured the time to shift spatial selective attention across the visual field to targets 2 or 10 deg from central fixation. A central arrow cued the most likely target location. The direction of attention was inferred from reaction times to expected, unexpected, and neutral locations. The development of a spatial attentional set with time was examined by presenting target probes at varying times after the cue. There were no effects of distance on the time course of the attentional set. Reaction times for far locations were slower than for near, but the effects of attention were evident by 150 msec in both cases. Spatial attention does not shift with a characteristic, fixed velocity. Rather, velocity is proportional to distance, resulting in a movement time that is invariant over the distances tested.
Document ID
19840055012
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Remington, R.
(NASA Ames Research Center Moffett Field, CA, United States)
Pierce, L.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: Perception and Psychophysics
Volume: 35
Issue: 4, Ap
ISSN: 0031-5117
Subject Category
Behavioral Sciences
Accession Number
84A37799
Distribution Limits
Public
Copyright
Other

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