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  • Title: Exploring temporal dissipation of attention settings in auditory task switching.
    Author: Koch I, Lawo V.
    Journal: Atten Percept Psychophys; 2014 Jan; 76(1):73-80. PubMed ID: 24163154.
    Abstract:
    Using a cued auditory task-switching variant of dichotic listening, we varied the response-cue interval (RCI) to examine temporal dissipation effects. On each trial, participants were presented with two different number words, one spoken by a female speaker and another by a male speaker (dichotic listening), that served as competing targets for a numerical judgment. The gender of the task-relevant speaker was indicated by a visual task cue prior to each trial. Experiment 1A used two different cues for each task (i.e., gender) and showed only small cue repetition benefits (same cue vs. alternate cue) but large auditory switch costs (alternate cue vs. task switch). A replication without immediate cue repetitions (Experiment 1B) showed very similar switch costs, suggesting that immediate cue repetitions play a negligible role for the size of auditory task switch costs. Moreover, switch costs were reduced when the (entirely task-irrelevant) location of the task-relevant speaker changed, relative to when it was unchanged, suggesting an episodic feature-binding component in our dichotic-listening task. Importantly, both experiments showed no effect of RCI on auditory switch costs. Because statistical power for this null effect was reasonably high across experiments (n = 50), this finding suggests that auditory attention settings do not dissipate quickly over time.
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