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  Pupillometric evidence for the decoupling of attention from perceptual input during offline thought

Smallwood, J., Brown, K. S., Tipper, C., Giesbrecht, B., Franklin, M. S., Mrazek, M. D., et al. (2011). Pupillometric evidence for the decoupling of attention from perceptual input during offline thought. PLoS One, 6(3): e18298. doi:10.1371/journal.pone.0018298.

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 Creators:
Smallwood, Jonathan1, Author           
Brown, Kevin S.2, Author
Tipper, Christine2, Author
Giesbrecht, Barry2, Author
Franklin, Michael S.2, Author
Mrazek, Michael D.2, Author
Carlson, Jean M.2, Author
Schooler, Jonathan W.2, Author
Affiliations:
1Department Social Neuroscience, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634552              
2External Organizations, ou_persistent22              

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Free keywords: Adolescent; Attention; Choice Behavior; Evoked Potentials; Female; Humans; Male; Memory, Short-Term; Models, Psychological; Motor Activity; Perception; Pupil; Reaction Time; Task Performance and Analysis; Thinking; Young Adult
 Abstract: Accumulating evidence suggests that the brain can efficiently process both external and internal information. The processing of internal information is a distinct "offline" cognitive mode that requires not only spontaneously generated mental activity; it has also been hypothesized to require a decoupling of attention from perception in order to separate competing streams of internal and external information. This process of decoupling is potentially adaptive because it could prevent unimportant external events from disrupting an internal train of thought. Here, we use measurements of pupil diameter (PD) to provide concrete evidence for the role of decoupling during spontaneous cognitive activity. First, during periods conducive to offline thought but not during periods of task focus, PD exhibited spontaneous activity decoupled from task events. Second, periods requiring external task focus were characterized by large task evoked changes in PD; in contrast, encoding failures were preceded by episodes of high spontaneous baseline PD activity. Finally, high spontaneous PD activity also occurred prior to only the slowest 20% of correct responses, suggesting high baseline PD indexes a distinct mode of cognitive functioning. Together, these data are consistent with the decoupling hypothesis, which suggests that the capacity for spontaneous cognitive activity depends upon minimizing disruptions from the external world. © 2011 Smallwood et al.

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Language(s): eng - English
 Dates: 2011-03-25
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1371/journal.pone.0018298
PMID: 21464969
PMC: PMC3064669
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Funding organization : David and Lucile Packard Foundation
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Grant ID : W911NF-09-D-0001
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Funding organization : U. S. Army Research Office
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Funding program : -
Funding organization : Bower Foundation

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Title: PLoS One
Source Genre: Journal
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Publ. Info: San Francisco, CA : Public Library of Sciene
Pages: 8 Volume / Issue: 6 (3) Sequence Number: e18298 Start / End Page: - Identifier: ISSN: 1932-6203
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000277850