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  The differential roles of lexical and sublexical processing during spoken-word recognition in clear and in noise

Strauß, A., Wu, T., McQueen, J. M., Scharenborg, O., & Hintz, F. (2022). The differential roles of lexical and sublexical processing during spoken-word recognition in clear and in noise. Cortex, 151, 70-88. doi:10.1016/j.cortex.2022.02.011.

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Strauß, Antje1, Autor
Wu, Tongyu2, Autor
McQueen, James M.3, 4, Autor           
Scharenborg, Odette5, Autor
Hintz, Florian6, Autor           
Affiliations:
1University of Konstanz, Konstanz, Germany, ou_persistent22              
2Radboud University Nijmegen, External Organizations, ou_3055479              
3Donders Institute for Brain, Cognition and Behaviour, External Organizations, ou_55236              
4Research Associates, MPI for Psycholinguistics, Max Planck Society, Wundtlaan 1, 6525 XD Nijmegen, NL, ou_2344700              
5University of Technology Delft, Delft, The Netherlands, ou_persistent22              
6Psychology of Language Department, MPI for Psycholinguistics, Max Planck Society, ou_792545              

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Schlagwörter: spoken-word recognition; background noise; lexical decision; lexical frequency; neighborhood density; phonotactic probability
 Zusammenfassung: Successful spoken-word recognition relies on an interplay between lexical and sublexical processing. Previous research demonstrated that listeners readily shift between more lexically-biased and more sublexically-biased modes of processing in response to the situational context in which language comprehension takes place. Recognizing words in the presence of background noise reduces the perceptual evidence for the speech signal and – compared to the clear – results in greater uncertainty. It has been proposed that, when dealing with greater uncertainty, listeners rely more strongly on sublexical processing. The present study tested this proposal using behavioral and electroencephalography (EEG) measures. We reasoned that such an adjustment would be reflected in changes in the effects of variables predicting recognition performance with loci at lexical and sublexical levels, respectively. We presented native speakers of Dutch with words featuring substantial variability in (1) word frequency (locus at lexical level), (2) phonological neighborhood density (loci at lexical and sublexical levels) and (3) phonotactic probability (locus at sublexical level). Each participant heard each word in noise (presented at one of three signal-to-noise ratios) and in the clear and performed a two-stage lexical decision and transcription task while EEG was recorded. Using linear mixed-effects analyses, we observed behavioral evidence that listeners relied more strongly on sublexical processing when speech quality decreased. Mixed-effects modelling of the EEG signal in the clear condition showed that sublexical effects were reflected in early modulations of ERP components (e.g., within the first 300 ms post word onset). In noise, EEG effects occurred later and involved multiple regions activated in parallel. Taken together, we found evidence – especially in the behavioral data – supporting previous accounts that the presence of background noise induces a stronger reliance on sublexical processing.

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Sprache(n): eng - English
 Datum: 2022-02-132022-03-182022
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.cortex.2022.02.011
 Art des Abschluß: -

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Titel: Cortex
  Andere : Cortex
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 151 Artikelnummer: - Start- / Endseite: 70 - 88 Identifikator: ISSN: 0010-9452
CoNE: https://pure.mpg.de/cone/journals/resource/954925393344