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

Novén, Mikael LU ; Schremm, Andrea LU ; Horne, Merle LU orcid and Roll, Mikael LU (2021) In Brain Research 1750.
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... (More)

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.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cortical surface area, Cortical thickness, Morphology, Prosody, Speech processing, Word accent
in
Brain Research
volume
1750
article number
147150
publisher
Elsevier
external identifiers
  • pmid:33039411
  • scopus:85092419871
ISSN
0006-8993
DOI
10.1016/j.brainres.2020.147150
language
English
LU publication?
yes
id
05714c45-b9ed-4a52-bef9-b5b4d9abf2d0
date added to LUP
2020-10-26 12:43:24
date last changed
2024-05-29 21:26:52
@article{05714c45-b9ed-4a52-bef9-b5b4d9abf2d0,
  abstract     = {{<p>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.</p>}},
  author       = {{Novén, Mikael and Schremm, Andrea and Horne, Merle and Roll, Mikael}},
  issn         = {{0006-8993}},
  keywords     = {{Cortical surface area; Cortical thickness; Morphology; Prosody; Speech processing; Word accent}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Elsevier}},
  series       = {{Brain Research}},
  title        = {{Cortical thickness and surface area of left anterior temporal areas affects processing of phonological cues to morphosyntax}},
  url          = {{http://dx.doi.org/10.1016/j.brainres.2020.147150}},
  doi          = {{10.1016/j.brainres.2020.147150}},
  volume       = {{1750}},
  year         = {{2021}},
}