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Related Experiment Videos

Attentional orienting to graspable objects: what triggers the response?

Todd C Handy1, Christine M Tipper

  • 1Department of Psychology, University of British Columbia, Vancouver, BC Canada. tchandy@psych.ubc.ca

Neuroreport
|May 23, 2007
PubMed
Summary
This summary is machine-generated.

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Graspable objects automatically attract attention, regardless of how they are represented in the brain. This attentional orienting occurs whether the object activates object-specific or hand-specific motor representations.

Area of Science:

  • Cognitive Neuroscience
  • Neuroscience
  • Psychology

Background:

  • Attentional orienting is crucial for processing sensory information.
  • The role of motor representations in attention is debated.
  • Graspable objects may activate distinct motor representations (object-specific vs. hand-specific).

Purpose of the Study:

  • To investigate if attentional orienting to graspable objects depends on the type of motor representation activated.
  • To determine if object-specific or hand-specific representations influence attention.
  • To explore the neural mechanisms underlying attention to tools.

Main Methods:

  • Utilized event-related potentials (ERPs) to measure neural activity.
  • Employed a visual paradigm with task-irrelevant tools presented in either the left or right visual hemifield.

Related Experiment Videos

  • Recruited left-handed participants to leverage lateralized motor representations.

    • Main Results:

    • ERPs showed attention was drawn to the tool's location irrespective of its hemifield presentation.
    • No significant difference in attentional orienting based on hemifield was observed.
    • The findings suggest bilateral activation of motor representations.

    Conclusions:

    • Attentional orienting to graspable objects is not dependent on the specificity of the motor representation (object vs. hand).
    • Graspable objects can trigger attentional orienting through either object-specific or hand-specific motor pathways.
    • This suggests a flexible and robust attentional system for interacting with objects.