| Where is the effect of frequency in word production? Insights from aphasic picture-naming errors. | |
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MedLine Citation:
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PMID: 18704797 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Some theories of lexical access in production locate the effect of lexical frequency at the retrieval of a word's phonological characteristics, as opposed to the prior retrieval of a holistic representation of the word from its meaning. Yet there is evidence from both normal and aphasic individuals that frequency may influence both of these retrieval processes. This inconsistency is especially relevant in light of recent attempts to determine the representation of another lexical property--age of acquisition or AoA--whose effect is similar to that of frequency. To further explore the representations of these lexical variables in the word retrieval system, we performed hierarchical, multinomial logistic regression analyses of 50 aphasic patients' picture-naming responses. While both log frequency and AoA had a significant influence on patient accuracy and led to fewer phonologically related errors and omissions, only log frequency had an effect on semantically related errors. These results provide evidence for a lexical access process sensitive to frequency at all stages, but with AoA having a more limited effect. |
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Authors:
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Audrey K Kittredge; Gary S Dell; Jay Verkuilen; Myrna F Schwartz |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: Cognitive neuropsychology Volume: 25 ISSN: 0264-3294 ISO Abbreviation: Cogn Neuropsychol Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-12-15 Completed Date: 2009-01-09 Revised Date: 2011-09-26 |
Medline Journal Info:
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Nlm Unique ID: 8411889 Medline TA: Cogn Neuropsychol Country: England |
Other Details:
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Languages: eng Pagination: 463-92 Citation Subset: IM |
Affiliation:
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Beckman Institute, University of Illinois, Urbana, IL 61801, USA. akittre2@uiuc.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Aphasia / classification, physiopathology*, psychology Brain / physiology Case-Control Studies Discrimination (Psychology) / physiology* Female Humans Logistic Models Male Mental Recall / physiology Middle Aged Pattern Recognition, Visual / physiology Phonetics Photic Stimulation Practice (Psychology) Recognition (Psychology) / physiology* Reference Values Semantics* Statistics, Nonparametric Verbal Behavior / physiology* Vocabulary Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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DC000191/DC/NIDCD NIH HHS; HD44458/HD/NICHD NIH HHS; MH1819990/MH/NIMH NIH HHS; R01 DC000191-27/DC/NIDCD NIH HHS; R01 DC000191-29/DC/NIDCD NIH HHS; R01 HD044458-05/HD/NICHD NIH HHS |
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