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.
|Keywords:||Attention, Awareness, Motion, IOR, Saccade.|
|Full text:||PDF - Published Version (478Kb)|
|Publisher Web site:||http://dx.doi.org/doi:10.3758/PP.70.3.489|
|Record Created:||12 Oct 2010 10:20|
|Last Modified:||29 Oct 2010 11:55|
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