scholarly journals Top-down influences on lexical selection during spoken word production: A 4T fMRI investigation of refractory effects in picture naming

2006 ◽  
Vol 27 (11) ◽  
pp. 864-873 ◽  
Author(s):  
Greig de Zubicaray ◽  
Katie McMahon ◽  
Mathew Eastburn ◽  
Alan Pringle
Keyword(s):  
Picture Naming ◽  
Spoken Word ◽  
Word Production ◽  
Lexical Selection ◽  
Top Down ◽  
Spoken Word Production

scholarly journals Phonological Neighborhood Effects in Spoken Word Production: An fMRI Study

2011 ◽  
Vol 23 (3) ◽  
pp. 593-603 ◽  
Author(s):  
Dasun Peramunage ◽  
Sheila E. Blumstein ◽  
Emily B. Myers ◽  
Matthew Goldrick ◽  
Melissa Baese-Berk
Keyword(s):  
Neighborhood Effects ◽  
Voice Onset Time ◽  
Inferior Frontal Gyrus ◽  
Onset Time ◽  
Spoken Word ◽  
Word Production ◽  
Minimal Pair ◽  
Precentral Gyrus ◽  
Lexical Selection ◽  
Spoken Word Production

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.

Lexical access in spoken word production by bilinguals: evidence from the semantic competitor priming paradigm

2001 ◽  
Vol 4 (3) ◽  
pp. 233-248 ◽  
Author(s):  
Ming-Wei Lee ◽  
John N. Williams
Keyword(s):  
Lexical Access ◽  
Selection Process ◽  
Spoken Word ◽  
Word Production ◽  
Lexical Selection ◽  
Lexical Competition ◽  
Language Bias ◽  
Spoken Word Production ◽  
Priming Paradigm ◽  
Cross Language

The competitive nature of the lexical selection process during spoken word production is well established in monolinguals. In this paper we explore the implication of this process for spoken word production in bilinguals. A cross-language semantic competitor priming effect was demonstrated, which shows that cross-language lexical competition is a feature of the word production system of the unbalanced English–French bilinguals who participated in the experiment. Experimental evidence was also found which suggests that a selected language bias effected through inhibition of the unwanted language plays an important role in resolving the cross-language lexical competition during bilingual word production in a selected language. The data further suggest that the dominance of the unwanted language relative to the selected language determines the presence/absence or “strength” of inhibition through which the selected language bias is effected. These findings are also interpreted in terms of a recent language-specific lexical selection account of bilingual lexical access.

EXPRESS: Mediated Phonological-Semantic Priming in Spoken Word Production: Evidence for Cascaded Processing from Picture-Word Interference

2021 ◽  
pp. 174702182110105
Author(s):  
Matteo Mascelloni ◽  
Katie L McMahon ◽  
Vitoria Piai ◽  
Daniel Kleinman ◽  
Greig de Zubicaray
Keyword(s):  
Interference Effect ◽  
Spoken Word ◽  
Word Production ◽  
Lexical Retrieval ◽  
Lexical Selection ◽  
Semantic Interference ◽  
Spoken Word Production ◽  
Lexical Representations ◽  
Phonological Word ◽  
Production Models

While there is consensus regarding a two-step architecture involving lexical-conceptual and phonological word form levels of processing, accounts of how activation spreads between them (e.g. in a serial, cascaded, or interactive fashion) remain contentious. In addition, production models differ with respect to whether selection occurs at lexical or post-lexical levels. The purpose of the present study was to examine whether mediated phonological-semantic relations (e.g., drip is phonologically related to drill that is semantically related to hammer) influence production in adults as predicted by models implementing cascaded processing and feedback between levels. Two experiments using the Picture-Word Interference (PWI) paradigm were conducted using auditory (Exp. 1) and written (Exp. 2) distractors. We hypothesised that a mediated semantic interference effect would be observable in the former with the involvement of both spoken word production and recognition, and in the latter if lexical representations are shared between written and spoken words in English, as assumed by some production accounts. Further, we hypothesised a mediated semantic interference effect would be inconsistent with a post-lexical selection account as the distractors do not constitute a relevant response for the target picture (e.g., drip-HAMMER). We observed mediated semantic interference only from auditory distractors, while observing the standard semantic interference effect from both auditory and written distractors. The current findings represent the first chronometric evidence involving spoken word production and recognition in support of cascaded processing during lexical retrieval in adults and present a significant challenge for the post-lexical selection account.

Interference From Phonological Primes in Spoken Word Production

1994 ◽  
Author(s):  
Kathleen M. Eberhard ◽  
Kathryn Bock ◽  
Zenzi Griffin
Keyword(s):  
Spoken Word ◽  
Word Production ◽  
Spoken Word Production

scholarly journals The neurobiology of taboo language processing: fMRI evidence during spoken word production

2019 ◽  
Vol 14 (3) ◽  
pp. 271-279
Author(s):  
Samuel J Hansen ◽  
Katie L McMahon ◽  
Greig I de Zubicaray
Keyword(s):  
Language Processing ◽  
Spoken Word ◽  
Word Production ◽  
Spoken Word Production

scholarly journals Intentional and Reactive Inhibition During Spoken-Word Stroop Task Performance in People With Aphasia

2015 ◽  
Vol 58 (3) ◽  
pp. 767-780 ◽  
Author(s):  
Rebecca Hunting Pompon ◽  
Malcolm R. McNeil ◽  
Kristie A. Spencer ◽  
Diane L. Kendall
Keyword(s):  
Selective Attention ◽  
Contextual Information ◽  
Individual Variability ◽  
Spoken Word ◽  
Word Production ◽  
Reactive Inhibition ◽  
Interference Effects ◽  
Priming Effects ◽  
Spoken Word Production ◽  
Everyday Communication

Purpose The integrity of selective attention in people with aphasia (PWA) is currently unknown. Selective attention is essential for everyday communication, and inhibition is an important part of selective attention. This study explored components of inhibition—both intentional and reactive inhibition—during spoken-word production in PWA and in controls who were neurologically healthy (HC). Intentional inhibition is the ability to suppress a response to interference, and reactive inhibition is the delayed reactivation of a previously suppressed item. Method Nineteen PWA and 20 age- and education-matched HC participated in a Stroop spoken-word production task. This task allowed the examination of intentional and reactive inhibition by evoking and comparing interference, facilitation, and negative priming effects in different contexts. Results Although both groups demonstrated intentional inhibition, PWA demonstrated significantly more interference effects. PWA demonstrated no significant facilitation effects. HC demonstrated significant reverse facilitation effects. Neither group showed significant evidence of reactive inhibition, though both groups showed similar individual variability. Conclusions These results underscore the challenge interference presents for PWA during spoken-word production, indicating diminished intentional inhibition. Although reactive inhibition was not different between PWA and HC, PWA showed difficulty integrating and adapting to contextual information during language tasks.

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