TY  - JOUR
PY  - 2011//
TI  - Attention doesn't slide: spatiotopic updating after eye movements instantiates a new, discrete attentional locus
JO  - Attention, perception and psychophysics
A1  - Golomb, Julie D.
A1  - Marino, Alexandria C.
A1  - Chun, Marvin M.
A1  - Mazer, James A.
SP  - 7
EP  - 14
VL  - 73
IS  - 1
N2  - During natural vision, eye movements can drastically alter the retinotopic (eye-centered) coordinates of locations and objects, yet the spatiotopic (world-centered) percept remains stable. Maintaining visuospatial attention in spatiotopic coordinates requires updating of attentional representations following each eye movement. However, this updating is not instantaneous; attentional facilitation temporarily lingers at the previous retinotopic location after a saccade, a phenomenon known as the retinotopic attentional trace. At various times after a saccade, we probed attention at an intermediate location between the retinotopic and spatiotopic locations to determine whether a single locus of attentional facilitation slides progressively from the previous retinotopic location to the appropriate spatiotopic location, or whether retinotopic facilitation decays while a new, independent spatiotopic locus concurrently becomes active. Facilitation at the intermediate location was not significant at any time, suggesting that top-down attention can result in enhancement of discrete retinotopic and spatiotopic locations without passing through intermediate locations.<p />  <p>Language: en</p>
LA  - en
SN  - 1943-3921
UR  - http://dx.doi.org/10.3758/s13414-010-0016-3
ID  - ref1
ER  -