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  Expectations induced by natural-like temporal fluctuations are independent of attention decrement: Evidence from behavior and early visual evoked potentials

Derosiere, G., Farrugia, N., Perrey, S., Ward, T., & Torre, K. (2015). Expectations induced by natural-like temporal fluctuations are independent of attention decrement: Evidence from behavior and early visual evoked potentials. NeuroImage, 104, 278-286. doi:10.1016/j.neuroimage.2014.09.015.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-AE23-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-7985-F
Genre: Journal Article

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 Creators:
Derosiere, Gerard1, 2, Author
Farrugia, Nicolas3, Author              
Perrey, Stéphane1, Author
Ward, Tomas2, 4, Author
Torre, Kjerstin1, Author
Affiliations:
1Movement to Health Laboratory M2H - EuroMov, Université Montpellier, France, ou_persistent22              
2Biomedical Engineering Research Group (BERG), National University of Ireland Maynooth, Ireland, ou_persistent22              
3Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634551              
4Swartz Center for Computational Neuroscience, Institute for Neural Computation, University of California San Diego, La Jolla, CA, USA, ou_persistent22              

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Free keywords: Temporal correlations; Sustained attention; Motor response; Pink noise; Sensory event-related potential
 Abstract: Temporal expectations and attention decrement affect human behavior in opposing ways: the former positively, the latter negatively yet both exhibit similar neural signatures – i.e., reduction in the early event-related potential components' amplitude – despite different underlying mechanisms. Furthermore, there is a significant and growing debate in the literature regarding the putative role of attention in the encoding of expectations in perception. The question then arises as to what are the behavioral and neural consequences, if any, of attention decrement on temporal expectations and related enhancement of sensory information processing. Here, we investigated behavioral performance and visual N1a, N1p and P1 components during a sustained attention reaction time task inducing attention decrement under two conditions. In one condition, the inter-stimulus intervals (ISIs) were randomly distributed to impede expectation effects while for the other, the ISI exhibited natural-like long-term correlations supposed to induce temporal expectations. Behavioral results show that natural-like fluctuations in ISI indeed induced faster RT due to temporal expectations. These temporal expectations were beneficial even under attention decrement circumstances. Further, temporal expectations were associated with reduced N1a amplitude while attention decrement was associated with reduced N1p amplitude. Our findings provide evidence that the effects of temporal expectations and attention decrement induced in a single task can be independent at the behavioral level, and are supported at separate information processing stages at the neural level in vision.

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Language(s): eng - English
 Dates: 2014-09-042014-09-162015-01-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.neuroimage.2014.09.015
PMID: 25224996
Other: Epub 2014
 Degree: -

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Title: NeuroImage
Source Genre: Journal
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Affiliations:
Publ. Info: Orlando, FL : Academic Press
Pages: - Volume / Issue: 104 Sequence Number: - Start / End Page: 278 - 286 Identifier: ISSN: 1053-8119
CoNE: /journals/resource/954922650166