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When does lexical availability influence phonology? Evidence from Jargon reading and repetition

Pilkington, Emma; Sage, Karen; Saddy, Douglas; Robson, Holly; (2020) When does lexical availability influence phonology? Evidence from Jargon reading and repetition. Language, Cognition and Neuroscience , 35 (4) pp. 521-540. 10.1080/23273798.2019.1676456. Green open access

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Abstract

Jargon aphasia is a language disorder characterised by phonological and nonword error. Errors are thought to arise when target segments are insufficiently activated, allowing non-target or recently used phonology to intrude. Words which are more frequent and familiar reside with greater degrees of activation and therefore should be less susceptible to error. The current study tested this hypothesis in a group of 10 people with Jargon aphasia using single word repetition and reading aloud. Each task had two lexicality conditions, one high and one low lexical availability word set. Measures of nonword quantity, phonological accuracy and perseveration were used in group and case series analyses. Results demonstrated that fewer nonwords were produced when lexical availability was greater. However, lexicality effects on phonological accuracy and perseveration were only observed in repetition in a sub-group of moderately impaired individuals, demonstrating that lexical information does not consistently influence phonological processing in Jargon aphasia.

Type: Article
Title: When does lexical availability influence phonology? Evidence from Jargon reading and repetition
Open access status: An open access version is available from UCL Discovery
DOI: 10.1080/23273798.2019.1676456
Publisher version: https://doi.org/10.1080/23273798.2019.1676456
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Nonwords, perseveration, POI, lexical processing, auditory repetition, reading aloud
UCL classification: UCL
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/10178748
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