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Component processes underlying voluntary task selection: Separable contributions of task-set inertia and

Michael J Imburgio1, Joseph M Orr2

  • 1Department of Psychological and Brain Sciences, 4235 TAMU, College Station, TX 77843, USA.

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|March 29, 2021
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Summary

Cognitive task switching theories struggle with voluntary switching. Drift diffusion models revealed that response-to-stimulus interval length impacts preparation, while cue-timing effects depend on the required response.

Keywords:
Cognitive flexibilityDecision makingDrift diffusionTask set inertiaTask set preparationTask switching

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Computational modeling

Background:

  • Task switching involves cognitive reconfiguration and inertia.
  • Cue-to-Stimulus Interval (CSI) and Response-to-Cue (RCI) influence these processes.
  • Existing theories inadequately explain voluntary task switching.

Purpose of the Study:

  • To investigate cognitive processes in voluntary task switching using drift diffusion models.
  • To examine the roles of task-set reconfiguration and inertia.
  • To analyze performance in single- and double-registrant voluntary task switching paradigms.

Main Methods:

  • Utilized drift diffusion models for analysis.
  • Examined single- and double-registrant voluntary task switching.
  • Manipulated Response-to-Stimulus (RSI) and Cue-to-Stimulus Interval (CSI) lengths.

Main Results:

  • RSI length moderated nondecision time in both paradigms, indicating preparation.
  • In double-registrant tasks, RSI also moderated task set inertia.
  • CSI length affected general preparation, but not switch-specific preparation, in double-registrant tasks.

Conclusions:

  • Voluntary task switching involves both general and switch-specific preparation.
  • The timing of cues and responses significantly influences cognitive preparation.
  • Future research should use EEG to validate these findings on preparation effects.