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Elements and Compounds01:27

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Related Experiment Video

Updated: Feb 4, 2026

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback
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Overshadowing between visual and tactile stimulus elements in an object recognition task.

W David Stahlman1, Mercedes McWaters1, Erica Christian1

  • 1Department of Psychological Science, University of Mary Washington, Fredericksburg, VA, USA.

Behavioural Processes
|September 26, 2018
PubMed
Summary

Stimuli compete for behavioral control in human associative learning. This study found that simultaneous visual and tactile training led to poorer object recognition, indicating overshadowing in human learning.

Keywords:
Cue competitionHapticsMultisensory inputOvershadowingPotentiation

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Area of Science:

  • Cognitive Psychology
  • Animal Behavior
  • Human Learning

Background:

  • Cue competition is well-studied in animal learning, but human evidence is unclear.
  • Understanding stimulus competition is crucial for behavioral control theories.

Purpose of the Study:

  • To investigate cue competition in humans using a novel task.
  • To determine if stimuli overshadow each other during associative learning in humans.

Main Methods:

  • Thirty-nine college students participated in a cue competition task.
  • Participants interacted with novel objects using visual and/or tactile stimuli.
  • Object recognition was tested after simultaneous or single-modality training.

Main Results:

  • Simultaneous visual and haptic inspection led to poorer object recognition compared to single-modality training.
  • This finding demonstrates overshadowing, where one stimulus element hinders learning about another.
  • Evidence suggests stimulus elements compete for behavioral control in humans.

Conclusions:

  • Human associative learning is subject to cue competition effects like overshadowing.
  • These findings contribute to understanding learning mechanisms and have implications for applied settings.