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The influence of emotional valence on word recognition in people with aphasia

Newton, C; Thornley, H; Bruce, C; (2020) The influence of emotional valence on word recognition in people with aphasia. Language, Cognition and Neuroscience 10.1080/23273798.2020.1713385. (In press).

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Abstract

Although several studies have demonstrated that emotional valence facilitates lexical processing in neurotypical adults, there has been limited work involving people with aphasia. This study explored the effects of valence (valenced/neutral) and polarity (positive/negative) on single word processing. Twenty people with chronic aphasia and 20 neurotypical controls completed a written lexical decision task in which valence was manipulated. An effect of valence (i.e. better performance for valenced vs. neutral words) was found in both accuracy and response time in the aphasic group and in response time for controls. Both groups showed an effect of polarity, with aphasic participants generating fewer errors for positive (vs. negative and neutral) stimuli, and controls responding more quickly to positive (vs. neutral) stimuli. Additionally, performance with positive words was impacted less by aphasia severity than negative and neutral words. The results highlight the importance of valence as a psycholinguistic factor in aphasia assessment and intervention.

Type: Article
Title: The influence of emotional valence on word recognition in people with aphasia
DOI: 10.1080/23273798.2020.1713385
Publisher version: https://doi.org/10.1080/23273798.2020.1713385
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: aphasia, valence, lexical decision, psycholinguitic variables, emotion
UCL classification: UCL
UCL > Provost and Vice Provost Offices
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/10090347
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