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BLAST: A short computerized test to measure the ability to stay on task. Normative behavioral data and detailed cortical dynamics.

Authors
  • Petton, Mathilde1
  • Perrone-Bertolotti, Marcela2
  • Mac-Auliffe, Diego1
  • Bertrand, Olivier1
  • Aguera, Pierre-Emmanuel1
  • Sipp, Florian1
  • Batthacharjee, Manik3
  • Isnard, Jean4
  • Minotti, Lorella5
  • Rheims, Sylvain6
  • Kahane, Philippe5
  • Herbillon, Vania1
  • Lachaux, Jean-Philippe7
  • 1 INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Lyon, France, France. , (France)
  • 2 Univ. Grenoble Alpes, CNRS, LPNC, Grenoble, France. , (France)
  • 3 Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, GIN, Grenoble, France. , (France)
  • 4 Department of Functional Neurology and Epileptology, Hospices Civils de Lyon and Université Lyon, Lyon, France. , (France)
  • 5 Univ. Grenoble Alpes, Inserm, CHU Grenoble Alpes, GIN, Grenoble, France; CHU Grenoble-Alpes, Hôpital Michallon, Service de Neurologie, Grenoble, France. , (France)
  • 6 INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Lyon, France, France; Department of Functional Neurology and Epileptology, Hospices Civils de Lyon and Université Lyon, Lyon, France. , (France)
  • 7 INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Lyon, France, France. Electronic address: [email protected] , (France)
Type
Published Article
Journal
Neuropsychologia
Publication Date
Sep 18, 2019
Volume
134
Pages
107151–107151
Identifiers
DOI: 10.1016/j.neuropsychologia.2019.107151
PMID: 31541659
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

This article provides an exhaustive description of a new short computerized test to assess on a second-to-second basis the ability of individuals to « stay on task », that is, to apply selectively and repeatedly task-relevant cognitive processes. The task (Bron/Lyon Attention Stability Test, or BLAST) lasts around 1 min, and measures repeatedly the time to find a target letter in a two-by-two letter array, with an update of all letters every new trial across thirty trials. Several innovative psychometric measures of attention stability are proposed based on the instantaneous fluctuations of reaction times throughout the task, and normative data stratified over a wide range of age are provided by a large (>6000) dataset of participants aged 8 to 70. We also detail the large-scale brain dynamics supporting the task from an in-depth study of 32 participants with direct electrophysiological cortical recordings (intracranial EEG) to prove that BLAST involves critically large-scale executive attention networks, with a marked activation of the dorsal attention network and a deactivation of the default-mode network. Accordingly, we show that BLAST performance correlates with scores established by ADHD-questionnaires. Copyright © 2019. Published by Elsevier Ltd.

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