Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/44703
Title: Time course of error detection and correction in humans: neurophysiological evidence.
Author: Rodríguez Fornells, Antoni
Kurzbuch, A.R.
Münte, Thomas F.
Keywords: Neurofisiologia
Codis de correcció d'errors (Teoria de la informació)
Estudi de casos
Evolució de la conducta
Neurophysiology
Error-correcting codes (Information theory)
Case studies
Behavior evolution
Issue Date: 15-Nov-2002
Abstract: Using event-related brain potentials, the time course of error detection and correction was studied in healthy human subjects. A feedforward model of error correction was used to predict the timing properties of the error and corrective movements. Analysis of the multichannel recordings focused on (1) the error-related negativity (ERN) seen immediately after errors in response- and stimulus-locked averages and (2) on the lateralized readiness potential (LRP) reflecting motor preparation. Comparison of the onset and time course of the ERN and LRP components showed that the signs of corrective activity preceded the ERN. Thus, error correction was implemented before or at least in parallel with the appearance of the ERN component. Also, the amplitude of the ERN component was increased for errors, followed by fast corrective movements. The results are compatible with recent views considering the ERN component as the output of an evaluative system engaged in monitoring motor conflict.
It is part of: Journal of Neuroscience, 2002, vol. 22, p. 9990-9996
URI: http://hdl.handle.net/2445/44703
ISSN: 0270-6474
Appears in Collections:Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)

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