Abstract
Objectives: The present investigation explored the electrophysiological correlates of working memory during sentence comprehension. Methods: Event-related brain potentials (ERP) were recorded from 29 channels in 22 subjects, while they read German sentences having subject-first (canonical) or object-first (non-canonical) word orders. Results: Three different ERP effects were observed: a negativity (maximum at Fc5) differentiating unambiguous object-first and subject-first sentences, interpreted as reflecting the demands of the object-first sentences on working memory; a second negativity (maximum at F7) to the subject noun-phrase in object-first sentences, interpreted as indicating retrieval of verbal material. Finally, a parietal positivity was found for ambiguous sentences that turned out to have a non-canonical word order, which was interpreted as indicating revision and reevaluation processes. Conclusions: The present data underscore the different roles of working memory in comprehension.
| Original language | English |
|---|---|
| Journal | Clinical Neurophysiology |
| Volume | 113 |
| Issue number | 6 |
| Pages (from-to) | 844-852 |
| Number of pages | 9 |
| ISSN | 1388-2457 |
| DOIs | |
| Publication status | Published - 2002 |
Funding
Supported by DFG grants MU1311/7-2 and MU1311/9-1 to T.F.M. We thank A. Niesel and J. Kilian for technical support.
Research Areas and Centers
- Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)
