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Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”

Pupil dilation indexes cognitive events of behavioral relevance, like the storage of information to memory and the deployment of attention. Yet, given the slow temporal response of the pupil dilation, it is not known from previous studies whether the pupil can index cognitive events in the short tim...

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Autores principales: Zylberberg, Ariel, Oliva, Manuel, Sigman, Mariano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Research Foundation 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3428810/
https://www.ncbi.nlm.nih.gov/pubmed/22973248
http://dx.doi.org/10.3389/fpsyg.2012.00316
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author Zylberberg, Ariel
Oliva, Manuel
Sigman, Mariano
author_facet Zylberberg, Ariel
Oliva, Manuel
Sigman, Mariano
author_sort Zylberberg, Ariel
collection PubMed
description Pupil dilation indexes cognitive events of behavioral relevance, like the storage of information to memory and the deployment of attention. Yet, given the slow temporal response of the pupil dilation, it is not known from previous studies whether the pupil can index cognitive events in the short time scale of ∼100 ms. Here we measured the size of the pupil in the Attentional Blink (AB) experiment, a classic demonstration of attentional limitations in processing rapidly presented stimuli. In the AB, two targets embedded in a sequence have to be reported and the second stimulus is often missed if presented between 200 and 500 ms after the first. We show that pupil dilation can be used as a marker of cognitive processing in AB, revealing both the timing and amount of cognitive processing. Specifically, we found that in the time range where the AB is known to occur: (i) the pupil dilation was delayed, mimicking the pattern of response times in the Psychological Refractory Period (PRP) paradigm, (ii) the amplitude of the pupil was reduced relative to that of larger lags, even for correctly identified targets, and (iii) the amplitude of the pupil was smaller for missed than for correctly reported targets. These results support two-stage theories of the Attentional Blink where a second processing stage is delayed inside the interference regime, and indicate that the pupil dilation can be used as a marker of cognitive processing in the time scale of ∼100 ms. Furthermore, given the known relation between the pupil dilation and the activity of the locus coeruleus, our results also support theories that link the serial stage to the action of a specific neuromodulator, norepinephrine.
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spelling pubmed-34288102012-09-12 Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink” Zylberberg, Ariel Oliva, Manuel Sigman, Mariano Front Psychol Psychology Pupil dilation indexes cognitive events of behavioral relevance, like the storage of information to memory and the deployment of attention. Yet, given the slow temporal response of the pupil dilation, it is not known from previous studies whether the pupil can index cognitive events in the short time scale of ∼100 ms. Here we measured the size of the pupil in the Attentional Blink (AB) experiment, a classic demonstration of attentional limitations in processing rapidly presented stimuli. In the AB, two targets embedded in a sequence have to be reported and the second stimulus is often missed if presented between 200 and 500 ms after the first. We show that pupil dilation can be used as a marker of cognitive processing in AB, revealing both the timing and amount of cognitive processing. Specifically, we found that in the time range where the AB is known to occur: (i) the pupil dilation was delayed, mimicking the pattern of response times in the Psychological Refractory Period (PRP) paradigm, (ii) the amplitude of the pupil was reduced relative to that of larger lags, even for correctly identified targets, and (iii) the amplitude of the pupil was smaller for missed than for correctly reported targets. These results support two-stage theories of the Attentional Blink where a second processing stage is delayed inside the interference regime, and indicate that the pupil dilation can be used as a marker of cognitive processing in the time scale of ∼100 ms. Furthermore, given the known relation between the pupil dilation and the activity of the locus coeruleus, our results also support theories that link the serial stage to the action of a specific neuromodulator, norepinephrine. Frontiers Research Foundation 2012-08-28 /pmc/articles/PMC3428810/ /pubmed/22973248 http://dx.doi.org/10.3389/fpsyg.2012.00316 Text en Copyright © 2012 Zylberberg, Oliva and Sigman. http://www.frontiersin.org/licenseagreement This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.
spellingShingle Psychology
Zylberberg, Ariel
Oliva, Manuel
Sigman, Mariano
Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title_full Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title_fullStr Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title_full_unstemmed Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title_short Pupil Dilation: A Fingerprint of Temporal Selection During the “Attentional Blink”
title_sort pupil dilation: a fingerprint of temporal selection during the “attentional blink”
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3428810/
https://www.ncbi.nlm.nih.gov/pubmed/22973248
http://dx.doi.org/10.3389/fpsyg.2012.00316
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