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Understanding the causes of adapting, and failing to adapt, to time pressure in a complex multi-stimulus environment

Palada, H, Neal, A, Tay, R and Heathcote, A ORCID: 0000-0003-4324-5537 2018 , 'Understanding the causes of adapting, and failing to adapt, to time pressure in a complex multi-stimulus environment' , Journal of Experimental Psychology: Applied, vol. 24, no. 3 , pp. 380-399 , doi:

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We examined how people respond to time pressure factors in a complex, multi-stimulusenvironment. In Study 1, we manipulated time pressure by varying information load viastimulus complexity and the number of stimuli. In Study 2, we replaced the complexitymanipulation with deadline – that is the time available to classify stimuli presented within atrial. We identified several ways that people can adapt to time pressure: Increasing the rate ofinformation processing via effort or arousal, changing strategy by lowering response caution,and adjusting response bias. We tested these mechanisms using the LBA model of choice and response time (Brown & Heathcote, 2008). Whereas stimulus complexity influenced thequality of choice information, the number of stimuli influenced response caution, anddeadline pressures caused a failure of encoding that was only partially compensated for byincreased effort or arousal. Our results reveal that, rather than having a common response,people adapt, and fail to adapt, to the different time pressure factors in different ways.

Item Type: Article
Authors/Creators:Palada, H and Neal, A and Tay, R and Heathcote, A
Journal or Publication Title: Journal of Experimental Psychology: Applied
Publisher: Amer Psychological Assoc
ISSN: 1076-898X
DOI / ID Number:
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Copyright 2018 American Psychological Association

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