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{Transient Spatial Attention Degrades Temporal Resolution}
Type of publication: Article
Citation: Levy2011
Journal: Psychological Science
Volume: 14
Number: 3
Year: 2011
Pages: 225--231
Abstract: Abstract - To better understand the interplay between the temporal and spatial components of visual perception, we studied the effects of transient spatial attention on temporal resolution. Given that spatial attention sharpens spatial resolution, can it also affect temporal reso- lution? To assess temporal resolution, we measured the two-flash fu- sion threshold. When two flashes of light are presented successively to the same location, the two-flash fusion threshold is the minimal inter- val between the flashes at which they are still perceived as two flashes, rather than a single flash. This assessment of temporal resolution was combined with peripheral precuing - a direct manipulation of tran- sient spatial attention. This allowed us to demonstrate, for the first time, that spatial attention can indeed affect temporal resolution. However, in contrast to its effect on spatial resolution, spatial atten- tion degrades temporal resolution. Two attentional mechanisms that could account for both attentional effects - enhanced spatial resolu- tion and reduced temporal resolution - are discussed
Userfields: date-added={2012-08-21 14:16:29 +0200}, date-modified={2012-08-21 14:16:29 +0200}, file={:Users/ana-maria/Desktop/Spatial attention/40063893.pdf:pdf}, project={fremdliteratur},
Keywords: spatial attention, temporal resolution
Authors Levy, Liat
Yeshurun, Yaffa