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ERIC Number: EJ921682
Record Type: Journal
Publication Date: 2011-Mar
Pages: 11
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-0898-929X
Phonological Neighborhood Effects in Spoken Word Production: An fMRI Study
Peramunage, Dasun; Blumstein, Sheila E.; Myers, Emily B.; Goldrick, Matthew; Baese-Berk, Melissa
Journal of Cognitive Neuroscience, v23 n3 p593-603 Mar 2011
The current study examined the neural systems underlying lexically conditioned phonetic variation in spoken word production. Participants were asked to read aloud singly presented words, which either had a voiced minimal pair (MP) neighbor (e.g., cape) or lacked a minimal pair (NMP) neighbor (e.g., cake). The voiced neighbor never appeared in the stimulus set. Behavioral results showed longer voice-onset time for MP target words, replicating earlier behavioral results [Baese-Berk, M., & Goldrick, M., "Mechanisms of interaction in speech production." "Language and Cognitive Processes, 24," 527-554, 2009]. fMRI results revealed reduced activation for MP words compared to NMP words in a network including left posterior superior temporal gyrus, the supramarginal gyrus, inferior frontal gyrus, and precentral gyrus. These findings support cascade models of spoken word production and show that neural activation at the lexical level modulates activation in those brain regions involved in lexical selection, phonological planning, and, ultimately, motor plans for production. The facilitatory effects for words with MP neighbors suggest that competition effects reflect the overlap inherent in the phonological representation of the target word and its MP neighbor.
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A