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Asymmetric Morphological Priming Among Inflected and Derived Verbs and Nouns in Greek
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In: Front Psychol (2021)
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Neural Networks Supporting Phoneme Monitoring Are Modulated by Phonology but Not Lexicality or Iconicity: Evidence From British and Swedish Sign Language ...
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Neural Networks Supporting Phoneme Monitoring Are Modulated by Phonology but Not Lexicality or Iconicity: Evidence From British and Swedish Sign Language
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Preexisting semantic representation improves working memory performance in the visuospatial domain
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Monitoring different phonological parameters of sign language engages the same cortical language network but distinctive perceptual ones
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Abstract:
The study of signed languages allows the dissociation of sensorimotor and cognitive neural components of the language signal. Here we investigated the neurocognitive processes underlying the monitoring of two phonological parameters of sign languages: handshape and location. Our goal was to determine if brain regions processing sensorimotor characteristics of different phonological parameters of sign languages were also involved in phonological processing, with their activity being modulated by the linguistic content of manual actions. We conducted an fMRI experiment using manual actions varying in phonological structure and semantics: (1) signs of a familiar sign language (British Sign Language), (2) signs of an unfamiliar sign language (Swedish Sign Language), and (3) invented nonsigns that violate the phonological rules of British Sign Language and Swedish Sign Language or consist of nonoccurring combinations of phonological parameters. Three groups of participants were tested: deaf native signers, deaf nonsigners, and hearing nonsigners. Results show that the linguistic processing of different phonological parameters of sign language is independent of the sensorimotor characteristics of the language signal. Handshape and location were processed by different perceptual and task-related brain networks but recruited the same language areas. The semantic content of the stimuli did not influence this process, but phonological structure did, with nonsigns being associated with longer RTs and stronger activations in an action observation network in all participants and in the supramarginal gyrus exclusively in deaf signers. These results suggest higher processing demands for stimuli that contravene the phonological rules of a signed language, independently of previous knowledge of signed languages. We suggest that the phonological characteristics of a language may arise as a consequence of more efficient neural processing for its perception and production.
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URL: https://doi.org/10.1162/jocn_a_00872
https://ueaeprints.uea.ac.uk/id/eprint/61339/1/71384c788b4f6283623eed5d407cc3270f48.pdf
https://ueaeprints.uea.ac.uk/id/eprint/61339/
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Differential activity in Heschl's gyrus between deaf and hearing individuals is due to auditory deprivation rather than language modality
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Collecting and Analyzing Sign Language Data: Video Requirements and Use of Annotation Software
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Similar digit-based working memory in deaf signers and hearing non-signers despite digit span differences
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Dissociating cognitive and sensory neural plasticity in human superior temporal cortex
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Similar digit-based working memory in deaf signers and hearing non-signers despite digit span differences
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First language acquisition differs from second language acquisition in prelingually deaf signers: Evidence from sensitivity to grammaticality judgement in British Sign Language
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