We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Syntactic language processing: ERP lesion data on the role of the basal ganglia.
- Authors
SONJA A. KOTZ; STEFAN FRISCH; D. YVES VON CRAMON; ANGELA D. FRIEDERICI
- Abstract
The role of the basal ganglia in syntactic language processing was investigated with event-related brain potentials in fourteen neurologically impaired patients. Seven of these patients had basal ganglia lesions while 7 other patients primarily had lesions of the left temporoparietal region excluding the basal ganglia. All patients listened to sentences that were either correct or included a verb argument structure violation. In previous experiments this type of violation elicited a biphasic pattern of an N400P600 complex in young healthy participants. While the N400 may result from incorrect semantic-thematic role assignment, the P600 reflects the fact that verb information does not license the syntactic structure at present. Results of the patient experiment revealed a double dissociation: patients with left temporoparietal lesions only show a P600, whereas patients with lesions of the basal ganglia showed no P600, but a negativity with extended duration that resembled an N400. The latter pattern not only confirms previous reports that the basal ganglia modulate the P600 but extends these results by showing that the N400 as a late semanticthematic integration process appears partially modulated by the basal ganglia. (JINS, 2003, 9, 10531060.)
- Subjects
BASAL ganglia diseases; NEUROLOGY; NEUROLOGICAL disorders; NEUROPHYSIOLOGY
- Publication
Journal of the International Neuropsychological Society, 2003, Vol 9, Issue 7, p1053
- ISSN
1355-6177
- Publication type
Article
- DOI
10.1017/s1355617703970093