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A fast and implicit measure of semantic categorisation using steady state visual evoked potentials

A fast and implicit measure of semantic categorisation using steady state visual evoked potentials
A fast and implicit measure of semantic categorisation using steady state visual evoked potentials
There is a great need for objective measures of perception and cognition that are reliable at the level of the individual subject. Although traditional electroencephalography (EEG) techniques can act as valid biomarkers of cognition, they typically involve long recording times and the computation of group averages. To overcome these well-known limitations of EEG, vision scientists have recently introduced a steady state method known as fast periodic visual stimulation (FPVS). This method allows them to study visual discrimination at the individual level. Inspired by their work, we examined whether FPVS could be used equally effectively to capture abstract conceptual processes. Twenty subjects (20.9 (±2.1) yrs, 6 male) were asked to complete a FPVS-oddball paradigm that assessed their spontaneous ability to differentiate between rapidly presented images on the basis of semantic, rather than perceptual, properties. At the group level, this approach returned a reliable oddball detection response after only 50s of stimulus presentation time. Moreover, a stable oddball response was found for each participating individual within 100s. As such, the FPVS-oddball paradigm returned an objective, non-verbal marker of semantic categorisation in single subjects in under two minutes. This finding establishes the FPVS-oddball paradigm as a powerful new tool in cognitive neuroscience.
0028-3932
11-18
Stothart, George
cc492746-88ea-4053-a3c8-f586c9cbfc5b
Quadflieg, Susanne
67588ba5-c9b7-4d0e-8788-739f3ee1500e
Milton, Alexander
0f19539b-e9ec-4f41-a2e5-a4af9a3d05c4
Stothart, George
cc492746-88ea-4053-a3c8-f586c9cbfc5b
Quadflieg, Susanne
67588ba5-c9b7-4d0e-8788-739f3ee1500e
Milton, Alexander
0f19539b-e9ec-4f41-a2e5-a4af9a3d05c4

Stothart, George, Quadflieg, Susanne and Milton, Alexander (2017) A fast and implicit measure of semantic categorisation using steady state visual evoked potentials. Neuropsychologia, 102, 11-18. (doi:10.1016/j.neuropsychologia.2017.05.025).

Record type: Article

Abstract

There is a great need for objective measures of perception and cognition that are reliable at the level of the individual subject. Although traditional electroencephalography (EEG) techniques can act as valid biomarkers of cognition, they typically involve long recording times and the computation of group averages. To overcome these well-known limitations of EEG, vision scientists have recently introduced a steady state method known as fast periodic visual stimulation (FPVS). This method allows them to study visual discrimination at the individual level. Inspired by their work, we examined whether FPVS could be used equally effectively to capture abstract conceptual processes. Twenty subjects (20.9 (±2.1) yrs, 6 male) were asked to complete a FPVS-oddball paradigm that assessed their spontaneous ability to differentiate between rapidly presented images on the basis of semantic, rather than perceptual, properties. At the group level, this approach returned a reliable oddball detection response after only 50s of stimulus presentation time. Moreover, a stable oddball response was found for each participating individual within 100s. As such, the FPVS-oddball paradigm returned an objective, non-verbal marker of semantic categorisation in single subjects in under two minutes. This finding establishes the FPVS-oddball paradigm as a powerful new tool in cognitive neuroscience.

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Accepted/In Press date: 24 May 2017
e-pub ahead of print date: 25 May 2017
Published date: 28 July 2017
Organisations: Human Wellbeing

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Local EPrints ID: 408591
URI: https://eprints.soton.ac.uk/id/eprint/408591
ISSN: 0028-3932
PURE UUID: d26b61ec-3d04-4756-9b81-dc36adca0e8a

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Date deposited: 25 May 2017 04:02
Last modified: 14 Mar 2019 05:54

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