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Intervening to alleviate word-finding difficulties in children: case series data and a computational modelling foundation

Best, W; Fedor, A; Hughes, L; Kapikian, A; Masterson, J; Roncoli, S; Fern-Pollak, L; (2015) Intervening to alleviate word-finding difficulties in children: case series data and a computational modelling foundation. Cognitive Neuropsychology 1 - 36. 10.1080/02643294.2014.1003204. Green open access

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Abstract

We evaluated a simple computational model of productive vocabulary acquisition, applied to simulating two case studies of 7-year-old children with developmental word-finding difficulties across four core behavioural tasks. Developmental models were created which captured the deficits of each child. In order to predict the effects of intervention, we exposed the computational models to simulated behavioural interventions of two types, either targeting the improvement of phonological or semantic knowledge. The model was then evaluated by testing the predictions from the simulations against the actual results from an intervention study carried out with the two children. For one child it was predicted that the phonological intervention would be effective and the semantic intervention would not. This was borne out in the behavioural study. For the second child, the predictions were less clear and depended on the nature of simulated damage to the model. The behavioural study found an effect of semantic but not phonological intervention. Through an explicit computational simulation, we therefore employed intervention data to evaluate our theoretical understanding of the processes underlying acquisition of lexical items for production and how they may vary in children with developmental language difficulties.

Type: Article
Title: Intervening to alleviate word-finding difficulties in children: case series data and a computational modelling foundation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/02643294.2014.1003204
Publisher version: http://dx.doi.org/10.1080/02643294.2014.1003204
Language: English
Additional information: This is an Accepted Manuscript of an article published by Taylor & Francis in Cognitive Neuropsychology on 25 Feb 2015, available online: http://www.tandfonline.com/10.1080/02643294.2014.1003204
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > IOE - Psychology and Human Development
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 > Language and Cognition
URI: https://discovery.ucl.ac.uk/id/eprint/1463841
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