On the origin of event-related potentials indexing covert attentional selection during visual search.

Title : On the Origin of Event - Related Potentials Indexing Covert Attentional 1 Selection During Visual Search : Timing Of Selection by Macaque Frontal Eye Field

On the origin of event-related potentials indexing covert attentional selection during visual search: timing of selection by macaque frontal eye field and event-related potentials during pop-out search.

Event-related potentials (ERPs) have provided crucial data concerning the time course of psychological processes, but the neural mechanisms producing ERP components remain poorly understood. This study continues a program of research in which we investigated the neural basis of attention-related ERP components by simultaneously recording intracranially and extracranially from macaque monkeys. H...

On the origin of event - related potentials indexing covert attentional 1 selection during visual search

Jeremiah Y. Cohen, Richard P. Heitz, Jeffrey D. Schall, Geoffrey F. Woodman 3 Department of Psychology, Vanderbilt Vision Research Center, Center for Integrative and 4 Cognitive Neuroscience, Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee 5 Address for reprint requests and other correspondence: J. D. Schall, Department of Psychology, 6 Vanderbilt University, PMB 407817,...

Event-Related Potentials of Bottom-Up and Top-Down Processing of Emotional Faces

Introduction: Emotional stimulus is processed automatically in a bottom-up way or can be processed voluntarily in a top-down way. Imaging studies have indicated that bottom-up and top-down processing are mediated through different neural systems. However, temporal differentiation of top-down versus bottom-up processing of facial emotional expressions has remained to be clarified. The present st...

Neural correlates of correct and errant attentional selection revealed through N2pc and frontal eye field activity.

The goal of this study was to obtain a better understanding of the physiological basis of errors of visual search. Previous research has shown that search errors occur when visual neurons in the frontal eye field (FEF) treat distractors as if they were targets. We replicated this finding during an inefficient form search and extended it by measuring simultaneously a macaque homologue of an even...