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Language Experience Impacts Brain Activation for Spoken and Signed Language in Infancy: Insights From Unimodal and Bimodal Bilinguals
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Sign and speech share partially overlapping conceptual representations
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Distinct processing of ambiguous speech in people with non-clinical auditory verbal hallucinations
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What Has Replication Ever Done for Us? Insights from Neuroimaging of Speech Perception
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In: Frontiers in Human Neuroscience , 11 , Article 41. (2017) (2017)
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What has replication ever done for us? Insights from neuroimaging of speech perception
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How auditory experience differentially influences the function of left and right superior temporal cortices
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Abstract:
To investigate how hearing status, sign language experience and task demands influence functional responses in the human superior temporal cortices (STC) we collected fMRI data from deaf and hearing participants (male and female), who either acquired sign language early or late in life. Our stimuli in all tasks were pictures of objects. We varied the linguistic and visuospatial processing demands in three different tasks that involved decisions about (1) the sublexical (phonological) structure of the British Sign Language (BSL) signs for the objects; (2) the semantic category of the objects; and (3) the physical features of the objects. Neuroimaging data revealed that in participants who were deaf from birth, STC showed increased activation during visual processing tasks. Importantly, this differed across hemispheres. Right STC was consistently activated regardless of the task whereas left STC was sensitive to task demands. Significant activation was detected in the left STC only for the BSL phonological task. This task, we argue, placed greater demands on visuospatial processing than the other two tasks. In hearing signers, enhanced activation was absent in both left and right STC during all three tasks. Lateralisation analyses demonstrated that the effect of deafness was more task-dependent in the left than the right STC whereas it was more task-independent in the right than the left STC. These findings indicate how the absence of auditory input from birth leads to dissociable and altered functions of left and right STC in deaf participants.
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URL: https://doi.org/10.1523/JNEUROSCI.0846-17.2017 https://westminsterresearch.westminster.ac.uk/item/q19w0/how-auditory-experience-differentially-influences-the-function-of-left-and-right-superior-temporal-cortices https://westminsterresearch.westminster.ac.uk/download/f3410c6b2195ccdc48c12ceeaabe3c4f2a0d569b08572e89d10b855a7fc4928b/4457297/JNEUROSCI.0846-17.2017.full.pdf
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Distinct neural systems recruited when speech production is modulated by different masking sounds
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In: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA , 140 (1) pp. 8-19. (2016) (2016)
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Visual Speech Perception in Children With Language Learning Impairments
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In: JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH , 59 (1) pp. 1-14. (2016) (2016)
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Getting the Cocktail Party Started: Masking Effects in Speech Perception.
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In: J Cogn Neurosci , 28 (3) pp. 483-500. (2016) (2016)
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Distinct neural systems recruited when speech production is modulated by different masking sounds.
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Getting the Cocktail Party Started: Masking Effects in Speech Perception
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Distinct neural systems recruited when speech production is modulated by different masking sounds
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Visual Speech Perception in Children With Language Learning Impairments
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Getting the cocktail party started: masking effects in speech perception
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Hierarchical organization of auditory and motor representations in speech perception: Evidence from searchlight similarity analysis
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Do We Know What We’re Saying? The Roles of Attention and Sensory Information During Speech Production
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Changes of right-hemispheric activation after constraint-induced, intensive language action therapy in chronic aphasia: fMRI evidence from auditory semantic processing.
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In: Front Hum Neurosci , 8 , Article 919. (2014) (2014)
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Does musical enrichment enhance the neural coding of syllables? Neuroscientific interventions and the importance of behavioral data.
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In: Front Hum Neurosci , 8 964 - ?. (2014) (2014)
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Does musical enrichment enhance the neural coding of syllables? Neuroscientific interventions and the importance of behavioral data
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In: Frontiers in Human Neuroscience , 8 , Article 964. (2014) (2014)
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The Pathways for Intelligible Speech: Multivariate and Univariate Perspectives
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In: ISSN: 1047-3211 ; Cerebral Cortex, Vol. 24, No 9 (2014) pp. 2350-61 (2014)
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