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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Press to grasp: how action dynamics shape object categorization.

Stefano Triberti1, Claudia Repetto1, Marcello Costantini2,3,4

  • 1Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy.

Experimental Brain Research
|December 10, 2015
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Summary
This summary is machine-generated.

Action goals, not just body parts used, influence how we categorize objects. This study shows that performing an action with a specific goal, like grasping, changes object perception more than the action itself.

Keywords:
Action influenceGoal representationObject categorization

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human-Computer Interaction

Background:

  • Action and object perception are interconnected.
  • Motor representations of actions can affect visual object categorization.
  • Previous research suggested effector-specificity, but action goals might play a role.

Purpose of the Study:

  • To investigate whether action's influence on object categorization is effector-specific or goal-related.
  • To directly test the hypothesis that action goals, not just effectors, modulate object perception.

Main Methods:

  • Participants categorized objects based on typical effector use (hand vs. foot).
  • A training phase involved either a simple foot action (pedal press) or a goal-directed foot action (pedal press to guide avatar hand grasping).
  • Object categorization performance was compared before and after training.

Main Results:

  • Performing a foot action with the goal of grasping (guiding avatar hand) increased uncertainty in categorizing objects as hand-related.
  • A simple foot action (pedal press) without a specific goal did not produce this effect.
  • This indicates that the goal of the action significantly influences object categorization.

Conclusions:

  • The influence of action on object categorization is primarily goal-dependent, not solely effector-specific.
  • This finding has implications for understanding sensorimotor integration and action planning.
  • Embodied cognition theories are supported by goal-directed action influencing perception.