Monitoring Different Phonological Parameters of Sign Language Engages the Same Cortical Language Network but Distinctive Perceptual Ones

Journal of Cognitive Neuroscience
Velia CardinMary Rudner

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 lo...Continue Reading

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Citations

Oct 3, 2017·Cerebral Cortex·Velia CardinJerker Rönnberg
Sep 1, 2015·Frontiers in Psychology·Mary RudnerEmil Holmer
Jan 22, 2019·Language, Cognition and Neuroscience·Gabriela MeadeKaren Emmorey
Feb 5, 2019·International Journal of Audiology·Jerker RönnbergMary Rudner
Oct 28, 2020·Proceedings of the National Academy of Sciences of the United States of America·Yuqi LiuElla Striem-Amit

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