Document Detail


Where is the effect of frequency in word production? Insights from aphasic picture-naming errors.
MedLine Citation:
PMID:  18704797     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Audrey K Kittredge; Gary S Dell; Jay Verkuilen; Myrna F Schwartz
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Cognitive neuropsychology     Volume:  25     ISSN:  0264-3294     ISO Abbreviation:  Cogn Neuropsychol     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-12-15     Completed Date:  2009-01-09     Revised Date:  2011-09-26    
Medline Journal Info:
Nlm Unique ID:  8411889     Medline TA:  Cogn Neuropsychol     Country:  England    
Other Details:
Languages:  eng     Pagination:  463-92     Citation Subset:  IM    
Affiliation:
Beckman Institute, University of Illinois, Urbana, IL 61801, USA. akittre2@uiuc.edu
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MeSH Terms
Descriptor/Qualifier:
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:
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

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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