The research in this revised proposal builds upon work that was completed under R03 DC 04259 """"""""Phonotactic Information in Speech Production,"""""""" which examined how the frequency of occurrence of phonological segments in a word (i.e., phonotactic probability) influenced the speed and accuracy of producing spoken words. The long-term goals of the current project are to better understand the processes and representations used to produce and recognize spoken words. Current models of speech production and word recognition propose multiple levels of representation, such as semantic, lexical, and sub-lexical representations. The research in the current proposal will examine how the frequency of occurrence of a stimulus, and the number of representations that resemble that stimulus (i.e., neighbors) influence the speed and accuracy of processing at each level of representation. The experiments in this proposal are unique in that they will examine the influence of frequency of occurrence and of neighboring representations at several levels of representation, including the semantic, the lexical, and the sub-lexical levels. Furthermore, the research in this proposal will examine these influences in both parts of the spoken language system (i.e, during the recognition and production of spoken words). The results of the proposed research will provide insight into the processes and representations used during the recognition and production of spoken words. Investigating the influence of frequency of occurrence and number of neighbors at each level of representation in both the recognition and the production of spoken language will lead to a better understanding of how different outcomes (e.g., competition versus facilitation) may arise given the demands of the different processing systems. Finally, this research will enable us to build better models of the two systems, as well as better describe the interface between the two systems. That is, the work in this proposal is a first step in the needed direction of integrating models of sub-lexical, lexical, and semantic processing and of models of recognition and production.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Research Project (R01)
Project #
5R01DC006472-03
Application #
7068039
Study Section
Language and Communication Study Section (LCOM)
Program Officer
Shekim, Lana O
Project Start
2004-07-01
Project End
2009-05-31
Budget Start
2006-06-01
Budget End
2007-05-31
Support Year
3
Fiscal Year
2006
Total Cost
$203,060
Indirect Cost
Name
University of Kansas Lawrence
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
076248616
City
Lawrence
State
KS
Country
United States
Zip Code
66045
Vitevitch, Michael S; Storkel, Holly L (2013) Examining the acquisition of phonological word forms with computational experiments. Lang Speech 56:493-527
Stamer, Melissa K; Vitevitch, Michael S (2012) Phonological similarity influences word learning in adults learning Spanish as a foreign language. Biling (Camb Engl) 15:490-502
Vitevitch, Michael S; Chan, Kit Ying; Roodenrys, Steven (2012) Complex network structure influences processing in long-term and short-term memory. J Mem Lang 67:30-44
Vitevitch, Michael S; Stamer, Melissa K; Kieweg, Douglas (2012) The Beginning Spanish Lexicon: A Web-based interface to calculate phonological similarity among Spanish words in adults learning Spanish as a foreign language. Second Lang Res 28:103-112
Rodriguez-Gonzalez, Eva (2012) Processing of Spanish Preterite regular and irregular verbs: the role of neighborhood density. Span J Psychol 15:35-47
Vitevitch, Michael S (2012) What do foreign neighbors say about the mental lexicon? Biling (Camb Engl) 15:167-172
Vitevitch, Michael S; Donoso, Alexander J (2012) Phonotactic probability of brand names: I'd buy that! Psychol Res 76:693-8
Vitevitch, Michael S; Donoso, Alexander (2011) Processing of indexical information requires time: Evidence from change deafness. Q J Exp Psychol (Hove) 64:1484-93
Chan, Kit Ying; Vitevitch, Michael S (2009) The influence of the phonological neighborhood clustering coefficient on spoken word recognition. J Exp Psychol Hum Percept Perform 35:1934-49
Vitevitch, Michael S; Stamer, Melissa K; Sereno, Joan A (2008) Word length and lexical competition: longer is the same as shorter. Lang Speech 51:361-83

Showing the most recent 10 out of 15 publications