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Related Experiment Videos

Motor experience with graspable objects reduces their implicit analysis in visual- and motor-related cortex.

Todd C Handy1, Christine M Tipper, Jana Schaich Borg

  • 1Department of Psychology, University of British Columbia, 2136 West Mall, Vancouver, BC Canada V6T 1Z4. tchandy@psych.ubc.ca

Brain Research
|June 13, 2006
PubMed
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Object recognition activates motor cortex, but only for novel items. Extensive motor experience with an object, like a doorknob, reduces this visuomotor activation, suggesting less implicit analysis.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Motor Control

Background:

  • Motor-related cortical regions activate when viewing graspable objects.
  • The influence of prior motor experience on these activations is not well understood.

Purpose of the Study:

  • To investigate whether visuomotor cortical responses to objects depend on prior motor experience.
  • To explore the relationship between object-specific motor experience and neural activation patterns.

Main Methods:

  • fMRI scanning of participants viewing doorknobs (high motor experience) and artificial climbing holds (low motor experience).
  • Experiment repeated with experienced rock climbers (high climbing hold experience).

Main Results:

Related Experiment Videos

  • Objects with no prior motor experience (climbing holds) activated visuomotor regions (left PMv, left AIP).
  • Objects with extensive motor experience (doorknobs) showed limited activation in lateral occipital cortex, not motor regions.
  • Experienced climbers showed similar limited lateral occipital cortex activation for both object types.

    • Conclusions:

    • Object-specific neural responses in visual and motor cortex may decrease with increased motor experience.
    • Repeated real-world motor experience may reduce implicit analysis in both motor and visual cortical regions.