Pupil dilation deconvolution reveals the dynamics of attention at high temporal resolution.

Proceedings of the National Academy of Sciences of the United States of America
Stefan M WierdaSander Martens

Abstract

The size of the human pupil increases as a function of mental effort. However, this response is slow, and therefore its use is thought to be limited to measurements of slow tasks or tasks in which meaningful events are temporally well separated. Here we show that high-temporal-resolution tracking of attention and cognitive processes can be obtained from the slow pupillary response. Using automated dilation deconvolution, we isolated and tracked the dynamics of attention in a fast-paced temporal attention task, allowing us to uncover the amount of mental activity that is critical for conscious perception of relevant stimuli. We thus found evidence for specific temporal expectancy effects in attention that have eluded detection using neuroimaging methods such as EEG. Combining this approach with other neuroimaging techniques can open many research opportunities to study the temporal dynamics of the mind's inner eye in great detail.

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Citations

Feb 6, 2013·PloS One·Maria Solé PuigHans Supèr
Nov 10, 2013·PloS One·Sebastiaan MathôtFrançoise Vitu
Jun 18, 2014·Attention, Perception & Psychophysics·Troy A W VisserJames T Enns
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Mar 31, 2015·The European Journal of Neuroscience·Chin-An WangDouglas P Munoz
Jun 10, 2014·The European Journal of Neuroscience·Chin-An Wang, Douglas P Munoz
Aug 27, 2015·Wiley Interdisciplinary Reviews. Cognitive Science·Sylvain Sirois, Julie Brisson
Mar 11, 2015·The European Journal of Neuroscience·Niels A KloostermanTobias H Donner
Jun 10, 2014·Psychophysiology·Stefanie E KuchinskyMark A Eckert
Nov 19, 2015·Psychonomic Bulletin & Review·Charlotte Willems, Sander Martens
Sep 25, 2015·Neuron·Matthew J McGinleyDavid A McCormick
Aug 25, 2015·Frontiers in Human Neuroscience·Joy J GengMichael J Minzenberg
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