title: Source localization of error negativity: additional source for corrected errors.
abstract: Error processing in corrected and uncorrected errors was studied while participants responded to a target surrounded by flankers. Error-related negativity (ERN/NE) was stronger and appeared earlier in corrected errors than in uncorrected errors. ERN neural sources for each error type were analyzed using low-resolution electromagnetic tomography method of source localization. For corrected errors, the ERN source was located at the anterior cingulate (BA 24) and the medial and superior frontal regions (presupplementary motor area, BA 6), whereas it was located at the anterior cingulate (BA 24) for uncorrected errors. It is suggested that the anterior cingulate is the main source of the ERN with the presupplementary motor area contributing to ERN initiation only if the correct response tendency is sufficiently active to allow for full execution of a correction response.
authors.affiliation: Department of Psychology, University of Michigan, Ann Arbor, MI 48109-1043, USA. eldadho@umich.edu
authors.forename: Eldad Yitzhak
authors.initials: EY
authors.lastname: Hochman
authors.forename: Zohar
authors.initials: Z
authors.lastname: Eviatar
authors.forename: Zvia
authors.initials: Z
authors.lastname: Breznitz
authors.forename: Michael
authors.initials: M
authors.lastname: Nevat
authors.forename: Shelley
authors.initials: S
authors.lastname: Shaul
mesh_terms: D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D004569:Electroencephalography; D005071:Evoked Potentials; D005260:Female; D005625:Frontal Lobe / Q000502:physiology; D006179:Gyrus Cinguli / Q000502:physiology; D006801:Humans; D008297:Male; D008606:Mental Processes / Q000502:physiology*; D009483:Neuropsychological Tests; D011930:Reaction Time; D013647:Task Performance and Analysis; D014054:Tomography; D055815:Young Adult