The general objectives of this project are to (1) assimilate data from language pathology to psycholinguistic theories of normal language processing, using aphasia as a testing ground for those theories; (2) develop assessments and analyses that can be used reliably across patients and across laboratories to yield the type of data suitable for (1); (3) obtain data that can be applied in the rehabilitation of aphasic disorders; and (4) develop computational models that instantiate and test specific accounts of psycholinguistic disorders and their relation to the normal language system. In this project period, our efforts will be aimed at three areas: (a) syntactic disorders, where we will (i) complete a large scale study of sentence production in nonfluent aphasics that seeks to confirm previously reported dissociations of morphological and structural indices and (ii) conduct on-line studies of sentence processing to test competing accounts of the deficit that underlies asyntactic comprehension; (b) lexical-semantic deficits, where we will (i) explore in detail the disorder that selectively compromises knowledge of man-made artifacts, seeking to establish its implications for naming and object use, as well as its neuroanatomic substrate; and (ii) investigate the role of semantic complexity/and or specificity in the retrieval of verbs, using a story completion paradigm; (c) lexical- phonological retrieval, where we will (i) expand our effort to simulate aphasic naming patterns with an implemented interactive activation model, and to test predictions regarding other language functions that are derived from the model; (ii) use an error-elicitation procedure to investigate between-word sublexical interaction errors in fluent aphasic speech, including serial order effects, similarity constraints, and lexical bias; and (iii) further develop the model to deal with words of complex shape and multiple-word utterances.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Research Project (R01)
Project #
5R01DC000191-19
Application #
6175689
Study Section
Sensory Disorders and Language Study Section (CMS)
Program Officer
Cooper, Judith
Project Start
1982-04-01
Project End
2001-09-23
Budget Start
2000-04-01
Budget End
2001-09-23
Support Year
19
Fiscal Year
2000
Total Cost
$590,707
Indirect Cost
Name
Temple University
Department
Neurology
Type
Schools of Medicine
DUNS #
City
Philadelphia
State
PA
Country
United States
Zip Code
19122
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Schwartz, Myrna F; Middleton, Erica L; Brecher, Adelyn et al. (2016) Does naming accuracy improve through self-monitoring of errors? Neuropsychologia 84:272-81
Jacobs, Cassandra L; Yiu, Loretta K; Watson, Duane G et al. (2015) Why are repeated words produced with reduced durations? Evidence from inner speech and homophone production. J Mem Lang 84:37-48
Schwartz, Myrna F (2015) The Marin Lab at the Dawn of Cognitive Neuropsychology. Cogn Behav Neurol 28:122-6

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