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Reflexive attention attenuates change blindness (but only briefly).

Smith, D.T. and Schenk, T. (2008) 'Reflexive attention attenuates change blindness (but only briefly).', Perception & psychophysics., 70 (3). pp. 489-495.


Humans are remarkably insensitive to large changes in a visual display if the change occurs simultaneously with a secondary perceptual event. A widely held view is that this change blindness occurs because the secondary perceptual event prevents the change from capturing attention. However, whereas some studies have shown that top-down attentional priming can attenuate change blindness, the evidence regarding the effect of bottom-up attentional capture on change blindness is less clear-cut. Here, we compare the effects of attentional capture on change detection with participants’ performance on a well-established attentional paradigm (a Posner-style cuing task). Experiment 1 established the time course of attentional capture in our paradigm. Experiment 2 demonstrated that this attentional capture was associated with facilitated change detection at short (150-msec),but not long (480-msec), latencies. These data show that reflexive attentional shifts facilitate change detection and are consistent with the view that shifts of attention are a necessary precondition for visual awareness.

Item Type:Article
Keywords:Attention, Awareness, Motion, IOR, Saccade.
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Date accepted:No date available
Date deposited:29 October 2010
Date of first online publication:April 2008
Date first made open access:No date available

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