This work benefited greatly from the technical expertise of Glenn Hudson, Ralph Molaro, and Bob Chorley, the generous provision of equipment by Nancy K. Squires, and a United University Professions' Drescher Faculty Development Award.
When cognitive control is calibrated: Event-related potential correlates of adapting to information-processing conflict despite erroneous response preparation
Article first published online: 1 JUL 2009
Copyright © 2009 Society for Psychophysiological Research
Volume 46, Issue 6, pages 1226–1233, November 2009
How to Cite
Freitas, A. L., Banai, R. and Clark, S. L. (2009), When cognitive control is calibrated: Event-related potential correlates of adapting to information-processing conflict despite erroneous response preparation. Psychophysiology, 46: 1226–1233. doi: 10.1111/j.1469-8986.2009.00864.x
- Issue published online: 12 OCT 2009
- Article first published online: 1 JUL 2009
- (Received October 9, 2008; Accepted December 27, 2008)
- Cognitive control;
- Event-related potentials;
- Information-processing conflict
To examine when in the perception-action cycle resolving information-processing conflict modulates signals of the current need for cognitive control, the present work examined event-related potential correlates of response preparation (lateralized readiness potentials; LRPs) and of information-processing conflict (fronto-central N2 responses) on trial n flanker trials, as a function of whether trial n–1 entailed a congruent flanker, an incongruent flanker, or a NoGo cue. Although LRP-indexed erroneous response preparation was substantial on incongruent trials across all levels of trial n–1, N2 amplitudes and behavioral interference effects were attenuated on incongruent trials following NoGo and incongruent (relative to congruent) trials. Even after initial attentional and motor-preparation processes have transpired, then, relatively later control mechanisms appear sufficient to signal a reduced need to engage cognitive control anew.