Academic journal article Attention, Perception and Psychophysics

Time, Space, and Attention

Academic journal article Attention, Perception and Psychophysics

Time, Space, and Attention

Article excerpt

TEMPORAL PERCEPTION

Cicchini & Morrone (2009). Shifts in spatial attention affect the perceived duration of events. J Vis, 9(1): Art. 9. doi:10.1167/9.1.9

I have previously highlighted research showing that if observers adapt to a flickering patch of sinusoidal grating at a particular spatial location, a test patch of nonflickering grating presented at the adapted location seems briefer (i.e., to last less time) than it does if presented at an unadapted location [Ayhan et al., 2009, J Vis 9(11):2; Burr et al., 2007, Nat Neurosci 10:423; Johnston et al., 2006, Curr Biol 16:472; Johnston, 2008, Vis Res 48:1852]. Another strange way to compress perceived time has recently been documented by Cicchini and Morrone, using a manipulation in which attention is crucial. In their experiment, observers had two tasks to perform. In the primary task (which made heavy attentional demands), the observer monitored some 2 circles (usually two). At some point in the trial, one of the circles underwent a brief (33- msec) fluctuation in size: Either the circle first got bigger, then smaller, and finally returned to 2, or it first got smaller and then bigger before returning to 2. …

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