On how to be unpredictable: evidence from the voluntary task-switching paradigm.

On how to be unpredictable: evidence from the voluntary task-switching paradigm. Research Abstract Details 

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On how to be unpredictable: evidence from the voluntary task-switching paradigm. Abstract Text:

Ulrich Mayr,Theodor Bell,

The voluntary task-switching paradigm requires subjects to select randomly between tasks and promises to provide a window into executive task selection independent of exogenous influences present in standard task-switching situations. We show here that the degree to which subjects perseverate on tasks across trials captures unique individual differences variance, but also that the switch rate is under strong stimulus-driven control: "Voluntary" switches are much more frequent when the stimulus changes than when it repeats. Most important, we show that individuals whose no-switch trials are selectively slowed exhibit less perseveration and stimulus-driven effects (and thus more voluntary selection) than individuals whose no-switch trials do not show this slowing. We suggest that selective slowing indicates a strategy of treating trials as discrete events--possibly through inhibition of the preceding task set. These results not only demonstrate massive nonvoluntary influences on voluntary selection that are largely untapped by standard task-switching measures, but also show how such influences can be counteracted through strategic adaptations.

On how to be unpredictable: evidence from the voluntary task-switching paradigm. Publishing Authors By Initials

U Mayr,T Bell,

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On how to be unpredictable: evidence from the voluntary task-switching paradigm. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Psychological science : a journal of the American

VOLUME: 17

Page Numbers: 774-80

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ISSN: 0956-7976

DAY: 3

MONTH: Sep

YEAR: 2006

On how to be unpredictable: evidence from the voluntary task-switching paradigm. Information

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LANGUAGE: eng

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Grant and Affiliation Information for On how to be unpredictable: evidence from the voluntary task-switching paradigm.

AFFILIATION: University of Oregon, OR 97403, USA. mayr@uoregon.edu

Country: United States

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MEDLINETA: Psychol Sci

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