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Toward an individualized neural assessment of receptive language in children
In: Petit, S., Badcock, N.A., Grootswagers, T., Rich, A.N., Brock, J., Nickels, L., Moerel, D., Dermody, N., Yau, S. <https://researchrepository.murdoch.edu.au/view/author/Yau, Shu.html>, Schmidt, E. and Woolgar, A. (2020) Toward an individualized neural assessment of receptive language in children. Journal of Speech, Language, and Hearing Research, 63 (7). pp. 2361-2385. (2020)
Abstract: Purpose We aimed to develop a noninvasive neural test of language comprehension to use with nonspeaking children for whom standard behavioral testing is unreliable (e.g., minimally verbal autism). Our aims were threefold. First, we sought to establish the sensitivity of two auditory paradigms to elicit neural responses in individual neurotypical children. Second, we aimed to validate the use of a portable and accessible electroencephalography (EEG) system, by comparing its recordings to those of a research-grade system. Third, in light of substantial interindividual variability in individuals' neural responses, we assessed whether multivariate decoding methods could improve sensitivity. Method We tested the sensitivity of two child-friendly covert N400 paradigms. Thirty-one typically developing children listened to identical spoken words that were either strongly predicted by the preceding context or violated lexical–semantic expectations. Context was given by a cue word (Experiment 1) or sentence frame (Experiment 2), and participants either made an overall judgment on word relatedness or counted lexical–semantic violations. We measured EEG concurrently from a research-grade system, Neuroscan's SynAmps2, and an adapted gaming system, Emotiv's EPOC+. Results We found substantial interindividual variability in the timing and topology of N400-like effects. For both paradigms and EEG systems, traditional N400 effects at the expected sensors and time points were statistically significant in around 50% of individuals. Using multivariate analyses, detection rate increased to 88% of individuals for the research-grade system in the sentences paradigm, illustrating the robustness of this method in the face of interindividual variations in topography. Conclusions There was large interindividual variability in neural responses, suggesting interindividual variation in either the cognitive response to lexical–semantic violations and/or the neural substrate of that response. Around half of our neurotypical participants showed the expected N400 effect at the expected location and time points. A low-cost, accessible EEG system provided comparable data for univariate analysis but was not well suited to multivariate decoding. However, multivariate analyses with a research-grade EEG system increased our detection rate to 88% of individuals. This approach provides a strong foundation to establish a neural index of language comprehension in children with limited communication
URL: https://researchrepository.murdoch.edu.au/id/eprint/57065/
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2
Ageing with bilingualism: benefits and challenges
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Spoken word production: Processes and potential breakdown
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Is the homophone advantage influenced by post-lexical effects?
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The relationship between response consistency in picture naming and storage impairment in people with semantic variant Primary Progressive Aphasia
Fieder, N; Savage, SA; van Scherpenberg, C. - : American Psychological Association, 2018
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6
Counting on number: effects of number information on grammatical processing of mass and count nouns
Wang, H.; Fieder, N.; Nickels, L.. - : Routledge, 2017
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7
Effect of socio-economic status on cognitive control in non-literate bilingual speakers*
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8
Consequences of late bilingualism for novel word learning: Evidence from Tamil–English bilingual speakers
Nair, V.; Nickels, L.; Biedermann, Britta. - : SAGE Publications, 2016
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9
Progress on COMPARE : a randomised controlled trial comparing constraint-induced and multi-modal aphasia therapy to usual care in people with chronic aphasia
Rose, M; Nickels, L; Hurley, M. - : London, UK : Sage Publications, 2016
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Progress on COMPARE: a randomised controlled trial comparing constraint-induced and multi-modal aphasia therapy to usual care in people with chronic aphasia
Rose, M.; Nickels, L.; Togher, L.. - : Sage Publications, 2016
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11
The lexical-syntactic representation of number
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12
How 'some garlic' becomes 'a garlic' or 'some onion': Mass and count processing in aphasia
Biedermann, Britta-Andrea; Best, W.; Fieder, N.. - : Elsevier Ltd, 2015
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13
Lexical retrieval treatment for functionally-relevant vocabulary in primary progressive aphasia : investigating generalisation to a structured interview
Ruggero, L; Taylor, C; Raiser, T. - : Whitsundays, Queensland : Neuropsychological Rehabilitation Special Interest Group, 2015
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14
The War Memorial Hospital primary progressive aphasia and related disorders clinic : from emerging area of practice to tertiary referral clinic
Taylor, C; Croot, K; Nickels, L. - : Sydney : Neuroscience Research Australia, 2015
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15
The War Memorial Hospital primary progressive aphasia and related disorders clinic : from emerging area of practice to tertiary referral clinic
Taylor, C; Croot, K; Nickels, L. - : UK : Hawker Publications, 2015
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COMPARE: A national randomized controlled trial comparing two intensive treatments to usual care for individuals with chronic aphasia
Rose, M.; Copland, D.; Nickels, L.. - : Wiley-Blackwell Publishing Asia, 2015
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17
From "some butter" to "a butter": An investigation of mass and count representation and processing
Fieder, N.; Nickels, L.; Best, W.. - : Routledge, 2014
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18
Representation and processing of mass and count nouns: A review
Nickels, L.; Fieder, N.; Biedermann, Britta-Andrea. - : Frontiers Research Foundation, 2014
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Outcomes of intensive language treatment on naming ability in aphasia with and without apraxia of speech post-stroke
Nickels, L; Scholl, D; Ballard, K. J. - : Australia : Wiley-Blackwell, 2014
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20
Using volunteers to conduct small group aphasia therapy
Osborne, A; Nickels, L. - : Australia : Wiley-Blackwell, 2014
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