PMID: 15250667Jul 15, 2004Paper

The modulation of the flash-lag effect by voluntary attention

Perception
J Namba, Vinícius C Baldo

Abstract

In the flash-lag effect (FLE), a flashing object appears to lag behind a moving object when both happen to be physically aligned to each other. According to an earlier account of the FLE (Baldo and Klein 1995 Nature 378 565-566), this perceptual phenomenon would result from differential delays in the perceptual processing of moving and flashing stimuli, presumably involving attentional mechanisms. Here, we have attempted to demonstrate in a more convincing way the participation of voluntary attention as a major component of the FLE. In experiment 1 the observer's attentional set was induced by the spatial probability structure of the visual stimulus. A flashing dot (relative to which the location of a moving dot should be judged) was presented, in separate blocks, at fixed, alternating, or randomly chosen locations. The two former conditions, providing a higher spatial predictability, yielded a smaller FLE than the latter condition, which provided a lower spatial predictability of the flashing dot. In experiment 2 we employed a standard cueing procedure, in which a participant was instructed to shift covertly his/her attentional focus according to a symbolic cue. The cue indicated, with a validity of 80%, the visual hemifield a...Continue Reading

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Citations

Jun 13, 2012·Proceedings of the National Academy of Sciences of the United States of America·Ramakrishna Chakravarthi, Rufin Vanrullen
Nov 17, 2007·Journal of Cognitive Neuroscience·Yasuki Noguchi, Ryusuke Kakigi
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Nov 18, 2014·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Jacob D Paschall, Mark E Mazurek
Oct 27, 2010·Neuroscience Letters·Luiz Renato Rodrigues CarreiroMarcus Vinicius Chrysóstomo Baldo
Jul 5, 2005·Vision Research·Marcus V C Baldo, Nestor Caticha
Jun 17, 2006·Vision Research·Mark ChappellDavid R Hardwick
Dec 19, 2006·Vision Research·Dragica SarichCarly Burgess
Nov 13, 2007·The Spanish Journal of Psychology·Marcus Vinícius C BaldoHamilton Haddad
May 7, 2019·Journal of Vision·Daisuke HayashiIkuya Murakami
Nov 13, 2019·Journal of Vision·Kate M CoffeyHinze Hogendoorn

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