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Evidence for shared conceptual representations for sign and speech

Evans, S; Price, C; Diedrichsen, J; Gutierrez-Sigut, E; MacSweeney, M; (2019) Evidence for shared conceptual representations for sign and speech. Cold Spring Harbor Laboratory: Cold Spring Harbor, NY, USA. Green open access

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Abstract

Do different languages evoke different conceptual representations? If so, greatest divergence might be expected between languages that differ most in structure, such as sign and speech. Unlike speech bilinguals, hearing sign-speech bilinguals use languages conveyed in different modalities. We used functional magnetic resonance imaging and representational similarity analysis (RSA) to quantify the similarity of semantic representations elicited by the same concepts presented in spoken British English and British Sign Language in hearing, early sign-speech bilinguals. We found shared representations for semantic categories in left posterior middle and inferior temporal cortex. Despite shared category representations, the same spoken words and signs did not elicit similar neural patterns. Thus, contrary to previous univariate activation-based analyses of speech and sign perception, we show that semantic representations evoked by speech and sign are only partially shared. This demonstrates the unique perspective that sign languages and RSA provide in understanding how language influences conceptual representation

Type: Working / discussion paper
Title: Evidence for shared conceptual representations for sign and speech
Open access status: An open access version is available from UCL Discovery
DOI: 10.1101/623645
Publisher version: https://doi.org/10.1101/623645
Language: English
Additional information: The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license. https://creativecommons.org/licenses/by/4.0/
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Institute of Cognitive Neuroscience
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Imaging Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/10081930
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