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Auditory short-term memory trace formation for nonspeech and speech in SLI and dyslexia as indexed by the N100 and mismatch negativity electrophysiological responses

Tuomainen, OT; (2015) Auditory short-term memory trace formation for nonspeech and speech in SLI and dyslexia as indexed by the N100 and mismatch negativity electrophysiological responses. Neuroreport , 26 (6) pp. 374-379. 10.1097/WNR.0000000000000357. Green open access

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Abstract

This study investigates nonspeech and speech processing in specific language impairment (SLI) and dyslexia. We used a passive mismatch negativity (MMN) task to tap automatic brain responses and an active behavioural task to tap attended discrimination of nonspeech and speech sounds. Using the roving standard MMN paradigm, we varied the number of standards ('few' vs. 'many') to investigate the effect of sound repetition on N100 and MMN responses. The results revealed that the SLI group needed more repetitions than dyslexics and controls to create a strong enough sensory trace to elicit MMN. In contrast, in the behavioural task, we observed good discrimination of speech and nonspeech in all groups. The findings indicate that auditory processing deficits in SLI and dyslexia are dissociable and that memory trace formation may be implicated in SLI.

Type: Article
Title: Auditory short-term memory trace formation for nonspeech and speech in SLI and dyslexia as indexed by the N100 and mismatch negativity electrophysiological responses
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1097/WNR.0000000000000357
Publisher version: http://dx.doi.org/10.1097/WNR.0000000000000357
Language: English
Additional information: Available for re-use under the terms of a Creative Commons Attribution-NonCommercial license(CC BY-NC) http://creativecommons.org/licenses/by-nc/4.0/
Keywords: auditory and speech perception, dyslexia, event-related potentials, memory trace formation, mismatch negativity, repetition effects, specific language impairment
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 > Speech, Hearing and Phonetic Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1465058
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