The long-term goal of this project is to examine the influence of probabilistic phonotactics on lexical retrieval during speech production. Recent work has demonstrated that probabilistic phonotactics affects spoken word recognition; however, little research has been conducted on its affects on speech production. Other findings, examining the effects on speech production of phonologically similar neighborhoods - a factor that is highly correlated with phonotactic probability - suggest that phonotactic information may also influence the speed and accuracy of lexical retrieval in speech production. A number of behavioral tasks, including several newly developed methodologies, as well as more conventional methods, will be used to provide converging evidence of the influence of probabilistic phonotactics on lexical retrieval of words and pseudo-words during speech production. The results of these studies using real words and specially constructed non-words will provide important new insights about the representations and general processing principles operating in speech production and perception. A better understanding of normal lexical retrieval could lead to valuable insights about the processes and representations used during lexical retrieval for speech production by clinical populations, including the elderly; hearing-impaired; and patients with aphasias or other neurogenic disorders.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Small Research Grants (R03)
Project #
5R03DC004259-04
Application #
6516229
Study Section
Special Emphasis Panel (ZDC1-SRB-O (21))
Program Officer
Shekim, Lana O
Project Start
2000-06-01
Project End
2004-05-31
Budget Start
2002-06-01
Budget End
2004-05-31
Support Year
4
Fiscal Year
2002
Total Cost
$72,750
Indirect Cost
Name
University of Kansas Lawrence
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
072933393
City
Lawrence
State
KS
Country
United States
Zip Code
66045
Rodriguez-Gonzalez, Eva (2012) Processing of Spanish Preterite regular and irregular verbs: the role of neighborhood density. Span J Psychol 15:35-47
Atchley, Ruth Ann; Vitevitch, Michael S (2006) Language processing across the life span: new methodologies to study old questions. Brain Lang 99:224-5
Vitevitch, Michael S; Rodriguez, Eva (2004) Neighborhood density effects in spoken word recognition in Spanish. J Multiling Commun Disord 3:64-73
Vitevitch, Michael S; Luce, Paul A (2004) A web-based interface to calculate phonotactic probability for words and nonwords in English. Behav Res Methods Instrum Comput 36:481-7
Vitevitch, Michael S; Armbruster, Jonna; Chu, Shinying (2004) Sublexical and lexical representations in speech production: effects of phonotactic probability and onset density. J Exp Psychol Learn Mem Cogn 30:514-29
Vitevitch, Michael S (2003) The influence of sublexical and lexical representations on the processing of spoken words in English. Clin Linguist Phon 17:487-99
Vitevitch, Michael S; Sommers, Mitchell S (2003) The facilitative influence of phonological similarity and neighborhood frequency in speech production in younger and older adults. Mem Cognit 31:491-504
Vitevitch, Michael S (2003) Change deafness: the inability to detect changes between two voices. J Exp Psychol Hum Percept Perform 29:333-42
Vitevitch, Michael S (2002) Naturalistic and experimental analyses of word frequency and neighborhood density effects in slips of the ear. Lang Speech 45:407-34
Vitevitch, Michael S (2002) The influence of phonological similarity neighborhoods on speech production. J Exp Psychol Learn Mem Cogn 28:735-47

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