PMID- 21266181 OWN - NLM STAT- MEDLINE DCOM- 20110506 LR - 20211020 IS - 1878-5646 (Electronic) IS - 0042-6989 (Print) IS - 0042-6989 (Linking) VI - 51 IP - 4 DP - 2011 Feb 23 TI - Attention modulates spatio-temporal grouping. PG - 435-46 LID - 10.1016/j.visres.2010.12.013 [doi] AB - Dynamic stimuli are ubiquitous in natural viewing conditions implying that grouping operations need to operate, not only in space, but also jointly in space and time. Moreover, in natural viewing, attention plays an important role in controlling how resources are allocated. We investigated how attention interacts with spatio-temporal perceptual grouping by using a bistable stimulus, called the Ternus-Pikler display. Ternus-Pikler displays can give rise to two different motion percepts, called Element Motion (EM) and Group Motion (GM), the former dominating at short Inter-Stimulus Intervals (ISIs) and the latter at long ISIs. Our results indicate that GM grouping requires more attentional resources than EM grouping. Different theoretical accounts of perceptual grouping and attention are discussed and evaluated in the light of the current results. CI - Copyright (c) 2011 Elsevier Ltd. All rights reserved. FAU - Aydin, Murat AU - Aydin M AD - Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77024-4005, USA. aydmurat2002@yahoo.com FAU - Herzog, Michael H AU - Herzog MH FAU - Ogmen, Haluk AU - Ogmen H LA - eng GR - R01 EY018165/EY/NEI NIH HHS/United States GR - R01 EY018165-01A1/EY/NEI NIH HHS/United States GR - R01 EY018165-02/EY/NEI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20110123 PL - England TA - Vision Res JT - Vision research JID - 0417402 SB - IM MH - Adult MH - Attention/*physiology MH - Female MH - Humans MH - Male MH - Motion Perception/*physiology MH - Pattern Recognition, Visual MH - Photic Stimulation/methods MH - Psychophysics PMC - PMC3050093 MID - NIHMS268690 EDAT- 2011/01/27 06:00 MHDA- 2011/05/07 06:00 PMCR- 2012/02/23 CRDT- 2011/01/27 06:00 PHST- 2010/01/17 00:00 [received] PHST- 2010/08/21 00:00 [revised] PHST- 2010/12/22 00:00 [accepted] PHST- 2011/01/27 06:00 [entrez] PHST- 2011/01/27 06:00 [pubmed] PHST- 2011/05/07 06:00 [medline] PHST- 2012/02/23 00:00 [pmc-release] AID - S0042-6989(10)00591-2 [pii] AID - 10.1016/j.visres.2010.12.013 [doi] PST - ppublish SO - Vision Res. 2011 Feb 23;51(4):435-46. doi: 10.1016/j.visres.2010.12.013. Epub 2011 Jan 23.