Hughes, Robert W., Hurlstone, Mark J., Marsh, John E., Vachon, François and Jones, Dylan M. (2012) Cognitive control of auditory distraction: Impact of task difficulty, foreknowledge, and working memory capacity supports duplex-mechanism account. Journal of Experimental Psychology: Human Perception and Performance . ISSN 0096-1523
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Official URL: http://dx.doi.org/10.1037/a0029064
The influence of top-down cognitive control on 2 putatively distinct forms of distraction was investigated. Attentional capture by a task-irrelevant auditory deviation (e.g., a female-spoken token following a sequence of male-spoken tokens)—as indexed by its disruption of a visually presented recall task—was abolished when focal-task engagement was promoted either by increasing the difficulty of encoding the visual to-be-remembered stimuli (by reducing their perceptual discriminability; Experiments 1 and 2) or by providing foreknowledge of an imminent deviation (Experiment 2). In contrast, distraction from continuously changing auditory stimuli (“changing-state effect”) was not modulated by task-difficulty or foreknowledge (Experiment 3). We also confirmed that individual differences in working memory capacity—typically associated with maintaining task-engagement in the face of distraction—predict the magnitude of the deviation effect, but not the changing-state effect. This convergence of experimental and psychometric data strongly supports a duplex-mechanism account of auditory distraction: Auditory attentional capture (deviation effect) is open to top-down cognitive control, whereas auditory distraction caused by direct conflict between the sound and focal-task processing (changing-state effect) is relatively immune to such control.
|Additional Information:||This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.|
|Subjects:||Biological sciences > Psychology|
|Schools:||College of Science and Technology > School of Psychology|
|Deposited By:||Charlotte John|
|Deposited On:||15 Oct 2012 09:45|
|Last Modified:||09 Aug 2016 15:40|
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