Abstract
Background: Both single-route and dual-route models of spoken word production have been proposed to account for auditory repetition performance in aphasic patients. Aims: We examined the extent to which Foygel and Dell's (2000) single-route model and Hanley, Dell, Kay, and Baron's (2004) dual-route model could successfully predict the repetition performance of six aphasic patients who made errors in picture naming and auditory repetition. Methods & Procedures: The six aphasic patients were tested on a variety of linguistic tasks. The models used performance on naming and nonword repetition tasks to predict real-word repetition scores. Outcome & Results: All six patients performed reasonably well at nonword repetition, but showed no evidence of using a non-lexical route when repeating real words. The repetition performance of all six patients was therefore better simulated by the single-route model than the dual-route model. Conclusion: Although the dual-route model successfully predicted the real-word repetition performance of the two patients reported by Hanley et al. (2004), it overestimated the performance of the six patients reported here. If the dual-route model is correct, then only a minority of patients appear to benefit from using the non-lexical route when repeating real words.
Original language | English (US) |
---|---|
Pages (from-to) | 62-76 |
Number of pages | 15 |
Journal | Aphasiology |
Volume | 22 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2008 |
ASJC Scopus subject areas
- Otorhinolaryngology
- Language and Linguistics
- Developmental and Educational Psychology
- Linguistics and Language
- Neurology
- Clinical Neurology
- LPN and LVN