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Related Experiment Videos

The redundant target effect is affected by modality switch costs.

Matthias Gondan1, Kathrin Lange, Frank Rösler

  • 1Philipps-Universität Marburg, Marburg, Germany. matthias.gondan@psychologie.uni-regensburg.de

Psychonomic Bulletin & Review
|July 21, 2004
PubMed
Summary

Faster reaction times to simultaneous, bimodal stimuli (redundant target effect) persist even after accounting for modality switch effects. This suggests multisensory processing gains occur independently of modality switching costs.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Faster reaction times to simultaneous, bimodal stimuli (redundant target effect, RTE) suggest processing gains from multisensory interactions.
  • Modality switch effects (MSE) slow reaction times when stimuli alternate modalities.

Purpose of the Study:

  • To investigate if the redundant target effect (RTE) is partly explained by the absence of modality switch effects (MSE) for bimodal stimuli.
  • To determine if multisensory processing gains occur independently of modality switch costs.

Main Methods:

  • Conducted simple reaction time redundant target experiments using auditory-visual, visual-tactile, and auditory-tactile stimulus combinations.
  • Measured reaction times to unimodal and bimodal stimuli.

Related Experiment Videos

  • Analyzed reaction times to account for modality switch effects.

    • Main Results:

    • Significant modality switch effects (MSE) and redundant target effects (RTE) were observed across all three modality pairings.
    • The redundant target effect (RTE) remained significant even after correcting reaction times for modality switch costs.

    Conclusions:

    • The redundant target effect (RTE) is not solely an artifact of avoiding modality switches.
    • Multisensory coactivation, leading to processing gains, appears to operate independently of modality switch costs, supporting theories of independent multisensory interactions.