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(Journal of Cognitive Neuroscience. 2006;18:1477-1487.)
© 2006 The MIT Press

Lapses in a Prefrontal–Extrastriate Preparatory Attention Network Predict Mistakes

Mayra L. Padilla, Richard A. Wood, Laura A. Hale and Robert T. Knight

University of California at Berkeley

Reprint requests should be sent to Mayra L. Padilla, Department of Psychology and the Helen Wills Neuroscience Institute, 130 Barker Hall, University of California at Berkeley, Berkeley CA 94720, or via e-mail: mayralpadilla{at}yahoo.com.

Mistakes are common to all forms of behavior but there is disagreement about what causes errors. We recorded electrophysiological and behavioral measures in a letter discrimination task to examine whether deficits in preparatory attention predicted subsequent response errors. Error trials were characterized by decreased frontal–central preparatory attention event-related potentials (ERPs) prior to stimulus presentation and decreased extrastriate sensory ERPs during visual processing. These findings indicate that transient lapses in a prefrontal–extrastriate preparatory attention network can lead to response errors.




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