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Late frontal brain potentials distinguish true and false recognition

Goldmann, Rachel E.1; Sullivan, Alison L.2; Droller, Daniel B. J.2; Rugg, Michael D.3; Curran, Tim4; Holcomb, Philip J.5; Schacter, Daniel L.6; Daffner, Kirk R.1 2; Budson, Andrew E.1 2 CA

Cognitive Neuroscience and Neuropsychology

Brain potentials associated with true and false recognition were recorded using a paradigm consisting of categorized color photographs. Two ERP components were identified. A parietal component was most positive for both true and false recognition, less positive for rejection of lures, and least positive for rejection of novel items. A later frontal component was more positive for false recognition, rejection of lures, and misses than for true recognition and rejection of novel items. The authors suggest that the parietal component may reflect the extent to which test items engender recollection of the gist representation of the study list, while the late frontal component may reflect the engagement of effortful post-retrieval processes.

1Harvard Medical School, 25 Shattuck Street, Boston, MA 02115

2Division of Cognitive and Behavioral Neurology, Department of Neurology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA

3Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London WC1N 3AR, UK

4Department of Psychology, University of Colorado, Campus Box 345, Boulder, CO 80309

5Department of Psychology, Tufts University, Medford, MA 02155

6Department of Psychology, Harvard University, 33 Kirkland Street, Cambridge, MA 02138, USA

CACorresponding Author: abudson@partners.org

Received 9 May 2003; accepted 2 June 2003

© 2003 Lippincott Williams & Wilkins, Inc.