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Component processes in voluntary task switching

Jelle Demanet (UGent) and Baptist Liefooghe (UGent)
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Abstract
The present study investigated the involvement of bottom-up and top-down control in task-switching situations in which tasks are selected on a voluntary basis. We tested for indices of both types of control in the reduction in switch cost that is observed when more time is available before executing a task. Participants had to indicate their task choice overtly prior to the actual task execution, and two time intervals were manipulated: the interval between the task-execution response of the previous trial and task-indication response of the current trial and the interval between task-indication response and task-execution response of a particular trial. In Experiment 1, the length of these intervals was manipulated orthogonally, and indices for top-down and bottom-up control were observed. Concerned with the validity of these results, Experiments 2–3 additionally discouraged participants from preparing the upcoming task before their task-indication response. Indices for bottom-up control remained, but not for top-down control. The characteristics of top-down and bottom-up control in voluntary task switching and task switching in general are discussed.
Keywords
CHOICE, RECONFIGURATION, INTERFERENCE, REPETITION, PERFORMANCE, Bottom-up control, Top-down control, Voluntary task switching, ELUSIVE HOMUNCULUS, TEMPORAL DISTINCTIVENESS, COSTS, SET SELECTION, STIMULUS, Switch cost, Mental flexibility

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Citation

Please use this url to cite or link to this publication:

Chicago
Demanet, Jelle, and Baptist Liefooghe. 2014. “Component Processes in Voluntary Task Switching.” Quarterly Journal of Experimental Psychology 67 (5): 843–860.
APA
Demanet, Jelle, & Liefooghe, B. (2014). Component processes in voluntary task switching. QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY, 67(5), 843–860.
Vancouver
1.
Demanet J, Liefooghe B. Component processes in voluntary task switching. QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY. 2014;67(5):843–60.
MLA
Demanet, Jelle, and Baptist Liefooghe. “Component Processes in Voluntary Task Switching.” QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY 67.5 (2014): 843–860. Print.
@article{4151508,
  abstract     = {The present study investigated the involvement of bottom-up and top-down control in task-switching situations in which tasks are selected on a voluntary basis. We tested for indices of both types of control in the reduction in switch cost that is observed when more time is available before executing a task. Participants had to indicate their task choice overtly prior to the actual task execution, and two time intervals were manipulated: the interval between the task-execution response of the previous trial and task-indication response of the current trial and the interval between task-indication response and task-execution response of a particular trial. In Experiment 1, the length of these intervals was manipulated orthogonally, and indices for top-down and bottom-up control were observed. Concerned with the validity of these results, Experiments 2--3 additionally discouraged participants from preparing the upcoming task before their task-indication response. Indices for bottom-up control remained, but not for top-down control. The characteristics of top-down and bottom-up control in voluntary task switching and task switching in general are discussed.},
  author       = {Demanet, Jelle and Liefooghe, Baptist},
  issn         = {1747-0218},
  journal      = {QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY},
  keyword      = {CHOICE,RECONFIGURATION,INTERFERENCE,REPETITION,PERFORMANCE,Bottom-up control,Top-down control,Voluntary task switching,ELUSIVE HOMUNCULUS,TEMPORAL DISTINCTIVENESS,COSTS,SET SELECTION,STIMULUS,Switch cost,Mental flexibility},
  language     = {eng},
  number       = {5},
  pages        = {843--860},
  title        = {Component processes in voluntary task switching},
  url          = {http://dx.doi.org/10.1080/17470218.2013.836232},
  volume       = {67},
  year         = {2014},
}

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