Reaction time as a stochastic process implemented by functional brain networks

Many studies focus on anatomical brain connectivity in an effort to explain the effect of practice on reaction time (RT) that is observed in many cognitive tasks. In this commentary, we suggest that RT reflects a stochastic process that varies in each single repetition of any cognitive task and cann...

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Published inCognitive neuroscience Vol. 8; no. 2; pp. 133 - 135
Main Authors Siettos, Constantinos I., Smyrnis, Nikolaos
Format Journal Article
LanguageEnglish
Published England Routledge 03.04.2017
Taylor & Francis Ltd
Subjects
Brain mapping
Cognitive ability
cognitive neuroscience
EEG
functional connectivity networks
Functional magnetic resonance imaging
Functional morphology
Magnetoencephalography
Neural networks
Reaction time
Reaction time task
Stochastic models
Stochasticity
training
Reaction time
training
cognitive neuroscience
functional connectivity networks
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Summary:Many studies focus on anatomical brain connectivity in an effort to explain the effect of practice on reaction time (RT) that is observed in many cognitive tasks. In this commentary, we suggest that RT reflects a stochastic process that varies in each single repetition of any cognitive task and cannot be attributed only to anatomical properties of the underlying neuronal circuit. Based on recent evidence from Magnetoencephalographic, Electroencephalographic, and fMRI studies, we further propose that the functional properties of key brain areas and their self-organization into functional connectivity networks contribute to the RT and could also explain the effects of training on the distribution of the RT.
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ISSN:1758-8928
1758-8936
DOI:10.1080/17588928.2016.1206519