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Ralph, M.A.L., Braber, N. 
ORCID: 0000-0003-2611-1190, McClelland, J.L. and Patterson, K.,
2005.
What underlies the neuropsychological pattern of irregular>regular past-tense verb production?
Brain and Language, 93 (1), pp. 106-119.
ISSN 1090-2155
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Abstract
The disadvantage in producing the past tense of regular relative to irregular verbs shown by some patients with non-fluent aphasia has been alternatively attributed (a) to the failure of a specific rule-based morphological mechanism, or (b) to a more generalised phonological impairment that penalises regular verbs more than irregular owing to the on-average greater phonological complexity of regular past-tense forms. Guided by the second of these two accounts, the current study was designed to identify more specific aspects of phonological deficit that might be associated with the pattern of irregular > regular past-tense production. Non-fluent aphasic patients (N = 8) were tested on past-tense verb production tasks and assessed with regard to the impact of three main manipulations in other word-production tasks: (i) insertion of a delay between stimulus and response in repetition; (ii) presence/ number of consonant clusters in a target word in repetition; (iii) position of stress within a bi-syllabic word in repetition and picture naming. The performance of all patients deteriorated in delayed repetition; but the patients with the largest discrepancy between regular and irregular past-tense production showed greater sensitivity to the other two manipulations. The phonological nature of the factors that correlated with verb-inflection performance emphasises the role of a phonological deficit in the observed pattern of irregular > regular.
| Item Type: | Journal article | ||||
|---|---|---|---|---|---|
| Publication Title: | Brain and Language | ||||
| Creators: | Ralph, M.A.L., Braber, N., McClelland, J.L. and Patterson, K. | ||||
| Publisher: | Elsevier | ||||
| Date: | 2005 | ||||
| Volume: | 93 | ||||
| Number: | 1 | ||||
| ISSN: | 1090-2155 | ||||
| Identifiers: |
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| Rights: | © 2005 Elsevier | ||||
| Divisions: | Schools > School of Arts and Humanities | ||||
| Record created by: | EPrints Services | ||||
| Date Added: | 09 Oct 2015 10:47 | ||||
| Last Modified: | 09 Jun 2017 13:39 | ||||
| URI: | https://irep.ntu.ac.uk/id/eprint/18199 |
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