Semantic interference affects speech production by increasing disfluencies, not errors

Article Multidisciplinary Sciences

Can object identification difficulty be predicted based on disfluencies and eye-movements in connected speech?

Aurelie Pistono et al.

Summary: In this study, we investigated whether delays in the initial stages of picture naming result in disfluency. By combining a network task and eye tracking, we found that visual blurring did not significantly increase disfluency on average, and viewing times decreased with blurred pictures. However, multivariate pattern analyses showed that disfluency patterns could predict whether participants were about to name blurred or control pictures. Overall, the conceptual generation of a message had individual effects on disfluencies, but these effects varied across participants. Additionally, cognitive differences, particularly inhibition, were correlated with some disfluency and eye movement variables.

PLOS ONE (2023)

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Article Linguistics

Using functional near-infrared spectroscopy to study word production in the brain: A picture-word interference study

Toru Hitomi et al.

Summary: This study evaluated the utility of fNIRS in investigating the neural correlates of semantic interference effect (SIE) in both monolinguals and bilinguals. The results from experiments with native speakers and unbalanced bilinguals demonstrated that fNIRS can effectively detect SIE and neural activities related to the target language.

JOURNAL OF NEUROLINGUISTICS (2021)

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Article Audiology & Speech-Language Pathology

Eye-movements can help disentangle mechanisms underlying disfluency

Aurelie Pistono et al.

Summary: Researchers linked the pattern of disfluency in production to difficulties at specific levels, using a Network Task. By combining this paradigm with eye-tracking, they were able to differentiate disfluencies related to word preparation difficulties from other types of disfluencies. The study showed that lexical selection difficulty led to self-corrections and pauses before naming.

LANGUAGE COGNITION AND NEUROSCIENCE (2021)

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Article Social Sciences, Mathematical Methods