Phonological neighborhood effects in spoken word production: An fMRI study

Dasun Peramunage*, Sheila E. Blumstein, Emily B. Myers, Matthew Goldrick, Melissa Baese-Berk

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)593-603
Number of pages11
JournalJournal of cognitive neuroscience
Volume23
Issue number3
DOIs
StatePublished - Mar 2011

ASJC Scopus subject areas

  • Cognitive Neuroscience

Fingerprint Dive into the research topics of 'Phonological neighborhood effects in spoken word production: An fMRI study'. Together they form a unique fingerprint.

Cite this