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The relationship between sustained inattentional blindness and working memory capacity
Journal article   Peer reviewed

The relationship between sustained inattentional blindness and working memory capacity

Vanessa Beanland and Esther Hiu Chung Chan
Attention, Perception & Psychophysics, Vol.78(3), pp.808-817
2016
DOI: https://doi.org/10.3758/s13414-015-1027-x
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https://doi.org/10.3758/s13414-015-1027-xView
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Abstract

Psychology Cognitive Sciences visual awareness working memory attention: divided attention and inattention
Inattentional blindness, whereby observers fail to detect unexpected stimuli, has been robustly demonstrated in a range of situations. Originally research focused primarily on how stimulus characteristics and task demands affect inattentional blindness, but increasingly studies are exploring the influence of observer characteristics on the detection of unexpected stimuli. It has been proposed that individual differences in working memory capacity predict inattentional blindness, on the assumption that higher working memory capacity confers greater attentional capacity for processing unexpected stimuli. Unfortunately, empirical investigations of the association between inattentional blindness and working memory capacity have produced conflicting findings. To help clarify this relationship, we examined the relationship between inattentional blindness and working memory capacity in two samples (Ns = 195, 147) of young adults. We used three common variants of sustained inattentional blindness tasks, systematically manipulating the salience of the unexpected stimulus and primary task practice. Working memory capacity, measured by automated operation span (both Experiments 1 & 2) and N-back (Experiment 1 only) tasks, did not predict detection of the unexpected stimulus in any of the inattentional blindness tasks tested. Together with previous research, this undermines claims that there is a robust relationship between inattentional blindness and working memory capacity. Rather, it appears that any relationship between inattentional blindness and working memory is either too small to have practical significance or is moderated by other factors and consequently varies with attributes such as the sample characteristics within a given study.

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Psychology
Psychology, Experimental
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