Cortical thickness and surface area of left anterior temporal areas affects processing of phonological cues to morphosyntax

Mikael Novén*, Andrea Schremm, Merle Horne, Mikael Roll

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

Lack of methods to experimentally assess the perceptual processing of sound features and allow one to measure differences in phonological proficiency has been a limitation for speech processing studies in native speakers. Tonal features associated with Swedish word-stems, word accents, which cue grammatical suffixes, constitute, however, such sound features that can be exploited to generate measures of reliance on morphosyntactically relevant phonological information during word processing. Specifically, there is a natural variance between native speakers in response time (RT) difference between phonologically valid and invalid word accent-suffix combinations that can be used to quantify perceptual phonological proficiency. This study uses ultra-high field magnetic resonance imaging (MRI) to investigate word accents as phonological cues to morphosyntactic meaning. The study adds to the understanding of the neural basis for both morphosyntactically relevant phonological cues by reporting correlations between differences in listeners’ RT for validly and invalidly cued suffixes and cortical thickness in left anterior and middle temporal gyrus, and the left anterior superior temporal sulcus as well as cortical surface area in the left middle and inferior temporal gyri. The cortical areas studied are known constituents of the ventral speech processing stream, necessary for word and phrase recognition.

OriginalsprogEngelsk
Artikelnummer147150
TidsskriftBrain Research
Vol/bind1750
Antal sider7
ISSN0006-8993
DOI
StatusUdgivet - 2021
Udgivet eksterntJa

Bibliografisk note

(Ekstern)
Funding Information:
This work was supported by Knut and Alice Wallenberg Foundation (Grant No. 2014.0139 ) and Marcus and Amalia Wallenberg Foundation (Grant No. 2014.0039 ). Lund University Bioimaging Center (LBIC), Lund University , Sweden, is gratefully acknowledged for providing experimental resources. We would like to thank an anonymous reviewer for helpful comments which have led to a much improved manuscript.

Funding Information:
This work was supported by Knut and Alice Wallenberg Foundation (Grant No. 2014.0139) and Marcus and Amalia Wallenberg Foundation (Grant No. 2014.0039). Lund University Bioimaging Center (LBIC), Lund University, Sweden, is gratefully acknowledged for providing experimental resources. We would like to thank an anonymous reviewer for helpful comments which have led to a much improved manuscript.

Funding Information:
This work was supported by Knut and Alice Wallenberg Foundation (Grant No. 2014.0139) and Marcus and Amalia Wallenberg Foundation (Grant No. 2014.0039).

Publisher Copyright:
© 2020

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