JN AJP citation statistics
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Neurophysiol 92: 3538-3545, 2004. First published July 14, 2004; doi:10.1152/jn.00435.2004
0022-3077/04 $5.00
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
92/6/3538    most recent
00435.2004v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (24)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Serences, J. T.
Right arrow Articles by Awh, E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Serences, J. T.
Right arrow Articles by Awh, E.

Preparatory Activity in Visual Cortex Indexes Distractor Suppression During Covert Spatial Orienting

John T. Serences1, Steven Yantis1, Andrew Culberson2 and Edward Awh2

1Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland 21218; and 2Department of Psychology, University of Oregon, Eugene, Oregon 97403

Submitted 28 April 2004; accepted in final form 10 July 2004

The deployment of spatial attention induces retinotopically specific increases in neural activity that occur even before a target stimulus is presented. Although this preparatory activity is thought to prime the attended regions, thereby improving perception and recognition, it is not yet clear whether this activity is a manifestation of signal enhancement at the attended locations or suppression of interference from distracting stimuli (or both). We investigated the functional role of these preparatory shifts by isolating a distractor suppression component of selection. Behavioral data have shown that manipulating the probability that visual distractors will appear modulates distractor suppression without concurrent changes in signal enhancement. In 2 experiments, functional magnetic resonance imaging revealed increased cue-evoked activity in retinotopically specific regions of visual cortex when increased distractor suppression was elicited by a high probability of distractors. This finding directly links cue-evoked preparatory activity in visual cortex with a distractor suppression component of visual selective attention.

Address for reprint requests and other correspondence: E. Awh, Dept. of Psychology, 1227 University of Oregon, Eugene, OR 97403 (E-mail: awh{at}uoregon.edu).




This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
C. Sestieri, C. M. Sylvester, A. I. Jack, G. d'Avossa, G. L. Shulman, and M. Corbetta
Independence of Anticipatory Signals for Spatial Attention From Number of Nontarget Stimuli in the Visual Field
J Neurophysiol, August 1, 2008; 100(2): 829 - 838.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
C. M. Sylvester, A. I. Jack, M. Corbetta, and G. L. Shulman
Anticipatory Suppression of Nonattended Locations in Visual Cortex Marks Target Location and Predicts Perception
J. Neurosci., June 25, 2008; 28(26): 6549 - 6556.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
T. A. Kelley, J. T. Serences, B. Giesbrecht, and S. Yantis
Cortical Mechanisms for Shifting and Holding Visuospatial Attention
Cereb Cortex, January 1, 2008; 18(1): 114 - 125.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurosci.Home page
C. M. Sylvester, G. L. Shulman, A. I. Jack, and M. Corbetta
Asymmetry of Anticipatory Activity in Visual Cortex Predicts the Locus of Attention and Perception
J. Neurosci., December 26, 2007; 27(52): 14424 - 14433.
[Abstract] [Full Text] [PDF]

Home page
 Cereb CortexHome page
G. L. Shulman, S. V. Astafiev, M. P. McAvoy, G. d'Avossa, and M. Corbetta
Right TPJ Deactivation during Visual Search: Functional Significance and Support for a Filter Hypothesis
Cereb Cortex, November 1, 2007; 17(11): 2625 - 2633.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
S. A. McMains, H. M. Fehd, T.-A. Emmanouil, and S. Kastner
Mechanisms of Feature- and Space-Based Attention: Response Modulation and Baseline Increases
J Neurophysiol, October 1, 2007; 98(4): 2110 - 2121.
[Abstract] [Full Text] [PDF]

Home page
 J. Cogn. Neurosci.Home page
K. E. Weaver and A. A. Stevens
Attention and Sensory Interactions within the Occipital Cortex in the Early Blind: An fMRI Study.
J. Cogn. Neurosci., February 1, 2007; 19(2): 315 - 330.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
M. A. Silver, D. Ress, and D. J. Heeger
Neural Correlates of Sustained Spatial Attention in Human Early Visual Cortex
J Neurophysiol, January 1, 2007; 97(1): 229 - 237.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
C. E. Boudreau, T. H. Williford, and J. H. R. Maunsell
Effects of Task Difficulty and Target Likelihood in Area V4 of Macaque Monkeys
J Neurophysiol, November 1, 2006; 96(5): 2377 - 2387.
[Abstract] [Full Text] [PDF]

Home page
 J. Cogn. Neurosci.Home page
C. C. Ruff and J. Driver
Attentional preparation for a lateralized visual distractor: behavioral and fMRI evidence.
J. Cogn. Neurosci., April 1, 2006; 18(4): 522 - 538.
[Abstract] [Full Text] [PDF]

Home page
 Proc. Natl. Acad. Sci. USAHome page
J.-M. Hopf, C. N. Boehler, S. J. Luck, J. K. Tsotsos, H.-J. Heinze, and M. A. Schoenfeld
Direct neurophysiological evidence for spatial suppression surrounding the focus of attention in vision
PNAS, January 24, 2006; 103(4): 1053 - 1058.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online
Copyright © 2004 by the The American Physiological Society.