PMID- 25224996 OWN - NLM STAT- MEDLINE DCOM- 20151223 LR - 20141203 IS - 1095-9572 (Electronic) IS - 1053-8119 (Linking) VI - 104 DP - 2015 Jan 1 TI - Expectations induced by natural-like temporal fluctuations are independent of attention decrement: evidence from behavior and early visual evoked potentials. PG - 278-86 LID - S1053-8119(14)00757-5 [pii] LID - 10.1016/j.neuroimage.2014.09.015 [doi] AB - 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. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Derosiere, Gerard AU - Derosiere G AD - Movement to Health (M2H), Montpellier-1 University, EuroMov, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France; Biomedical Engineering Research Group (BERG), National University of Ireland Maynooth (NUIM), Co Kildare, Ireland. Electronic address: gerard.derosiere@univ-montp1.fr. FAU - Farrugia, Nicolas AU - Farrugia N AD - Max Planck Institute for Human Cognitive and Brain Sciences, Stefanstrasse 1A, 04103 Leipzig, Germany. FAU - Perrey, Stephane AU - Perrey S AD - Movement to Health (M2H), Montpellier-1 University, EuroMov, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France. FAU - Ward, Tomas AU - Ward T AD - Biomedical Engineering Research Group (BERG), National University of Ireland Maynooth (NUIM), Co Kildare, Ireland; Schwartz Center for Computational Neuroscience, Institute for Neural Computation, University of California, San Diego, La Jolla, CA 92093-0559, USA. FAU - Torre, Kjerstin AU - Torre K AD - Movement to Health (M2H), Montpellier-1 University, EuroMov, 700 Avenue du Pic Saint Loup, 34090 Montpellier, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140916 PL - United States TA - Neuroimage JT - NeuroImage JID - 9215515 SB - IM MH - Adult MH - Attention/*physiology MH - Brain/*physiology MH - Electroencephalography MH - *Evoked Potentials, Visual MH - Female MH - Humans MH - Male MH - Photic Stimulation MH - Reaction Time MH - Time Factors MH - Time Perception/*physiology MH - Visual Perception/*physiology OTO - NOTNLM OT - Motor response OT - Pink noise OT - Sensory event-related potential OT - Sustained attention OT - Temporal correlations EDAT- 2014/09/17 06:00 MHDA- 2015/12/24 06:00 CRDT- 2014/09/17 06:00 PHST- 2014/05/11 00:00 [received] PHST- 2014/08/04 00:00 [revised] PHST- 2014/09/04 00:00 [accepted] PHST- 2014/09/17 06:00 [entrez] PHST- 2014/09/17 06:00 [pubmed] PHST- 2015/12/24 06:00 [medline] AID - S1053-8119(14)00757-5 [pii] AID - 10.1016/j.neuroimage.2014.09.015 [doi] PST - ppublish SO - Neuroimage. 2015 Jan 1;104:278-86. doi: 10.1016/j.neuroimage.2014.09.015. Epub 2014 Sep 16.