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Ideomotor compatibility enables automatic response selection.

François Maquestiaux1,2, Morgan Lyphout-Spitz3, Eric Ruthruff4

  • 1Laboratoire de Psychologie and Maison des Sciences de l'Homme et de l'Environnement (MSHE) Ledoux, Université de Franche-Comté - UFR SLHS, 30 rue Mégevand, 25030, Besançon, France. francois.maquestiaux@univ-fcomte.fr.

Psychonomic Bulletin & Review
|April 24, 2020
PubMed
Summary
This summary is machine-generated.

Ideomotor (IM)-compatible tasks allow automatic response selection, bypassing attentional bottlenecks. This automatic processing occurs without central attention, supporting theories of IM compatibility.

Keywords:
AutomaticityCentral bottleneckDual-task interferenceIdeomotor compatibilityResponse selection

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Area of Science:

  • Cognitive Psychology
  • Human Factors
  • Neuroscience

Background:

  • The attentional bottleneck normally limits performance in dual-task scenarios.
  • Ideomotor (IM)-compatible tasks exhibit high stimulus-response similarity, simplifying task execution.

Purpose of the Study:

  • To investigate if ideomotor (IM)-compatible tasks can bypass the central attentional bottleneck.
  • To determine if response selection can occur automatically for IM-compatible tasks during dual-task performance.

Main Methods:

  • Utilized the psychological refractory period procedure to assess dual-task costs.
  • Manipulated the IM compatibility of Task 2 performed concurrently with a non-IM-compatible Task 1.
  • Included single-task trials as a baseline for comparison.

Main Results:

  • Observed bottleneck bypassing when Task 2 was IM-compatible, indicated by negligible dual-task costs.
  • Found high percentages of response reversals and weak correlations between task reaction times.
  • Simulation analysis supported the findings of simultaneous response selection.

Conclusions:

  • Perception of IM-compatible stimuli directly activates response codes automatically.
  • Automatic response selection for IM-compatible tasks does not require central attention.
  • Findings align with Greenwald's theory of ideomotor compatibility.