A case-series test of the interactive two-step model of lexical access: Predicting word repetition from picture naming

Lexical access in language production, and particularly pathologies of lexical access, are often investigated by examining errors in picture naming and word repetition. In this article, we test a computational approach to lexical access, the two-step interactive model, by examining whether the model...

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Bibliographic Details
Published in:Journal of memory and language Vol. 56; no. 4; pp. 490 - 520
Main Authors: Dell, Gary S., Martin, Nadine, Schwartz, Myrna F.
Format: Journal Article
Language:English
Published: San Diego, CA Elsevier Inc 01.05.2007
Elsevier
Elsevier BV
Subjects:
Access
Adult and adolescent clinical studies
Aphasia
Biological and medical sciences
Cognition & reasoning
Computational models
Computer Modeling and Simulation
Disorders of higher nervous function. Focal brain diseases. Central vestibular syndrome and deafness. Brain stem syndromes
Error Analysis
Error Analysis (Language)
Error Patterns
Errors
Language and communication disorders
Language Research
Lexical Access
Lexical semantics
Linguistics
Medical sciences
Naming
Nervous system (semeiology, syndromes)
Neurology
Phonetics
Phonological Processing
Phonology
Pictorial Stimuli
Picture naming
Prediction
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Repetition
Retrieval
Semantics
Tests
Word Recognition
Aphasia
Computational models
Picture naming
Repetition
Lexical access
Human
Nervous system diseases
Word
Cognition
Naming
Language disorder
Cerebral disorder
Case study
Communication disorder
Language
Central nervous system disease
Models
Neurological disorder
ISSN:0749-596X, 1096-0821
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Summary:Lexical access in language production, and particularly pathologies of lexical access, are often investigated by examining errors in picture naming and word repetition. In this article, we test a computational approach to lexical access, the two-step interactive model, by examining whether the model can quantitatively predict the repetition-error patterns of 65 aphasic subjects from their naming errors. The model’s characterizations of the subjects’ naming errors were taken from the companion paper to this one (Schwartz, M. F., Dell, G. S., Martin, N., Gahl, S., & Sobel, P. (2006). A case-series test of the interactive two-step model of lexical access: evidence from picture naming. Journal of Memory and Language, 54, 228–264), and their repetition was predicted from the model on the assumption that naming involves two error prone steps, word and phonological retrieval, whereas repetition only creates errors in the second of these steps. A version of the model in which lexical–semantic and lexical–phonological connections could be independently lesioned was generally successful in predicting repetition for the aphasics. An analysis of the few cases in which model predictions were inaccurate revealed the role of input phonology in the repetition task.
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ISSN:0749-596X
1096-0821
DOI:10.1016/j.jml.2006.05.007