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Sign and speech share partially overlapping conceptual representations
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Abstract:
Conceptual knowledge is fundamental to human cognition. Yet the extent to which it is influenced by language is unclear. Studies of semantic processing show that similar neural patterns are evoked by the same concepts presented in different modalities (e.g. spoken words and pictures or text) [1–3]. This suggests that conceptual representations are ‘modality independent’. However, an alternative possibility is that the similarity reflects retrieval of common spoken language representations. Indeed, in hearing spoken language users, text and spoken language are co-dependent [4,5] and pictures are encoded via visual and verbal routes [6]. A parallel approach investigating semantic cognition, shows that bilinguals activate similar patterns for the same words in their different languages [7,8]. This suggests that conceptual representations are ‘language independent’. However, this has only been tested in spoken language bilinguals. If different languages evoke different conceptual representations, this should be most apparent comparing languages that differ greatly in structure. Hearing people with signing deaf parents are bilingual in sign and speech: languages conveyed in different modalities. Here we test the influence of modality and bilingualism on conceptual representation by comparing semantic representations elicited by spoken British English and British Sign Language in hearing early, sign-speech bilinguals. We show that representations of semantic categories are shared for sign and speech, but not for individual spoken words and signs. This provides evidence for partially shared representations for sign and speech, and shows that language acts as a subtle filter through which we understand and interact with the world.
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URL: https://westminsterresearch.westminster.ac.uk/download/6730b449a29f7e60bdcd64f63690ce64ff6b10cc1e3b2e62e2f066ee5b185d04/2647378/PIIS0960982219311583%282%29.pdf https://doi.org/10.1016/j.cub.2019.08.075 https://westminsterresearch.westminster.ac.uk/item/qwyvy/sign-and-speech-share-partially-overlapping-conceptual-representations
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How auditory experience differentially influences the function of left and right superior temporal cortices
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Identification of the regions involved in phonological assembly using a novel paradigm.
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In: Brain and Language, vol. 150, pp. 45-53 (2015)
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Lesions impairing regular versus irregular past tense production
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Lesions impairing regular versus irregular past tense production
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Structural correlates for lexical efficiency and number of languages in non-native speakers of English
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Multiple routes from occipital to temporal cortices during reading
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Auditory-motor expertise alters "speech selectivity" in professional musicians and actors
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Parallel recovery in a trilingual speaker: the use of the Bilingual Aphasia Test as a diagnostic complement to the Comprehensive Aphasia Test
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Automatic top-down processing explains common left occipito-temporal responses to visual words and objects.
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In: Cerebral Cortex, vol. 21, no. 1, pp. 103-114 (2011)
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Contrasting effects of vocabulary knowledge on temporal and parietal brain structure across lifespan
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Language control and parallel recovery of language in individuals with aphasia
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In: Aphasiology , 24 (2) pp. 188-209. (2010) (2010)
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The impact of second language learning on semantic and nonsemantic first language reading
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In: Cerebral Cortex , 20 (2) pp. 315-327. (2010) (2010)
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The role of the left head of caudate in suppressing irrelevant words
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In: Journal of Cognitive Neuroscience , 22 (10) pp. 2369-2386. (2010) (2010)
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The role of the left head of caudate in suppressing irrelevant words
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An anatomical signature for literacy
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In: Nature , 461 (7266) pp. 983-986. (2009) (2009)
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Inter-subject variability in the use of two different neuronal networks for reading aloud familiar words
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The influence of color and sound on neuronal activation during visual object naming
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Anatomical traces of vocabulary acquisition in the adolescent brain
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In: Journal of Neuroscience , 27 (5) pp. 1184-1189. (2007) (2007)
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