Journal of Cognitive Neuroscience
Failed Suppression of Direct Visuomotor Activation in Parkinson's Disease
Journal of Cognitive Neuroscience
How do Web users respond to non-banner-ads animation? The effects of task type and user experience
Journal of the American Society for Information Science and Technology
Relationship of blink, affect, and usability of graph reading tasks
Proceedings of the 2nd International Conference on Interaction Sciences: Information Technology, Culture and Human
Object-based selection of irrelevant features is not confined to the attended object
Journal of Cognitive Neuroscience
Rapid feature-driven changes in the attentional window
Journal of Cognitive Neuroscience
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Motion information tends to be segregated from color and form information in the visual system, both perceptually and neuroanatomically, and it is therefore possible that different mechanisms of attention are used to select targets defined by these different feature types during visual search. To test this hypothesis, we recorded the N2pc component of the event-related potential waveform during visual search tasks with color, orientation, and motion targets. The N2pc component has previously been shown to reflect a specific attentional mechanism that is present for color and form targets, and we sought to determine whether this component would also be present for motion targets. The N2pc component was indeed observed for motion targets as well as color and orientation targets, consistent with the use of a common attentional mechanism across feature types. In addition, we found that motion singletons (i.e., individual items that moved in the opposite direction from the other items in the army) elicited an N2pc component even when they were task-irrelevant, indicating that motion discontinuities may produce an automatic orienting of attention.