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A Complementary Joint Training Approach Using Unpaired Speech and Text for Low-Resource Automatic Speech Recognition ...
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Functional maps of direct electrical stimulation-induced speech arrest and anomia: a multicentre retrospective study.
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In: Brain : a journal of neurology, vol 144, iss 8 (2021)
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Abstract:
Direct electrical stimulation, the transient 'lesional' method probing brain function, has been utilized in identifying the language cortex and preserving language function during epilepsy and neuro-oncological surgeries for about a century. However, comparison of functional maps of the language cortex across languages/continents based on cortical stimulation remains unclear. We conducted a retrospective multicentre study including four cohorts of direct electrical stimulation mapping from four centres across three continents, where three indigenous languages (English, French and Mandarin) are spoken. All subjects performed the two most common language tasks: number counting and picture naming during stimulation. All language sites were recorded and normalized to the same brain template. Next, Spearman's correlation analysis was performed to explore the consistency of the distributions of the language cortex across centres, a kernel density estimation to localize the peak coordinates, and a hierarchical cluster analysis was performed to detect the crucial epicenters. A total of 598 subjects with 917 speech arrest sites (complete interruption of ongoing counting) and 423 anomia sites (inability to name or misnaming) were included. Different centres presented highly consistent distribution patterns for speech arrest (Spearman's coefficient r ranged from 0.60 to 0.85, all pair-wise correlations P < 0.05), and similar patterns for anomia (Spearman's coefficient r ranged from 0.37 to 0.80). The combinational speech arrest map was divided into four clusters: cluster 1 mainly located in the ventral precentral gyrus and pars opercularis, which contained the peak of speech arrest in the ventral precentral gyrus; cluster 2 in the ventral and dorsal precentral gyrus; cluster 3 in the supplementary motor area; cluster 4 in the posterior superior temporal gyrus and supramarginal gyrus. The anomia map revealed two clusters: one was in the posterior part of the superior and middle temporal gyri, which peaked at the posterior superior temporal gyrus; and the other within the inferior frontal gyrus, peaked at the pars triangularis. This study constitutes the largest series to date of language maps generated from direct electrical stimulation mapping. The consistency of data provides evidence for common language networks across languages, in the context of both speech and naming circuit. Our results not only clinically offer an atlas for language mapping and protection, but also scientifically provide better insight into the functional organization of language networks.
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Keyword:
anomia; direct cortical electrostimulation; functional mapping; language; Medical and Health Sciences; Neurological; Neurology & Neurosurgery; Neurosciences; Psychology and Cognitive Sciences; speech arrest
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URL: https://escholarship.org/uc/item/5qz5z3td
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The representation of variable tone sandhi patterns in Shanghai Wu
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In: Laboratory Phonology: Journal of the Association for Laboratory Phonology; Vol 12, No 1 (2021); 15 ; 1868-6354 (2021)
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Tracing Text Provenance via Context-Aware Lexical Substitution ...
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Fixel-based evidence of microstructural damage in crossing pathways improves language mapping in Post-stroke aphasia
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In: Neuroimage Clin (2021)
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Electrophysiological Signatures of Perceiving Alternated Tone in Mandarin Chinese: Mismatch Negativity to Underlying Tone Conflict
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In: Front Psychol (2021)
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The Evaluation Model of College Students' Mental Health in the Environment of Independent Entrepreneurship Using Neural Network Technology
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In: J Healthc Eng (2021)
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| 10 |
Functional maps of direct electrical stimulation-induced speech arrest and anomia: a multicentre retrospective study
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In: Brain (2021)
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Where is the speech production area? Evidence from direct cortical electrical stimulation mapping
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In: Brain (2021)
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The genetic determinants of language network dysconnectivity in drug-naïve early stage schizophrenia
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In: Brain and Mind Institute Researchers' Publications (2021)
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The genetic determinants of language network dysconnectivity in drug-naïve early stage schizophrenia
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In: Brain and Mind Institute Researchers' Publications (2021)
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The genetic determinants of language network dysconnectivity in drug-naïve early stage schizophrenia
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Linguistic diversity in a time of crisis: Language challenges of the COVID-19 pandemic. - Multilingua : Linguistic diversity in a time of crisis: Language challenges of the COVID-19 pandemic. -
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IDS Mannheim
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A Corpus-Based Investigation of Manner/State Complement Constructions in Mandarin Chinese ...
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Chinese postgraduate taught students' transitional experience in the UK: the role of social connections
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The /n/-/ŋ/ Asymmetry upon /ɻ/-Suffixation in Beijing and Elsewhere -- A Phonetically Based OT Analysis
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In: North East Linguistics Society (2020)
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Phonetic Duration Effects on Contour Tone Distribution
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In: North East Linguistics Society (2020)
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Poetry Translation From the Perspective of Creative Treason: Based on the Analysis of Xu Yuanzhong’s Translation of Spring View
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In: Cross-Cultural Communication; Vol 16, No 2 (2020): Cross-Cultural Communication; 64-68 ; 1923-6700 ; 1712-8358 (2020)
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