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Related Experiment Videos

Grasping objects by their handles: a necessary interaction between cognition and action.

S H Creem1, D R Proffitt

  • 1Department of Psychology, Univerisity of Virginia, USA. sarah.creem@psych.utah.edu

Journal of Experimental Psychology. Human Perception and Performance
|March 16, 2001
PubMed
Summary

Cognitive and action systems interact when understanding an object

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Area of Science:

  • Cognitive psychology
  • Neuroscience
  • Human motor control

Background:

  • Cognitive and action systems are often dissociated, influencing perception and behavior.
  • These systems also interact, particularly when semantic understanding is needed for action.
  • Previous research suggests distinct neural representations for experience and visuomotor control.

Purpose of the Study:

  • To investigate the interaction between semantic processing and visuomotor control.
  • To determine if semantic understanding is necessary for appropriate object grasping.
  • To elucidate the conditions under which cognitive and action systems collaborate.

Main Methods:

  • Three experiments were conducted using concurrent task paradigms.
  • Experiment 1: Semantic vs. visuospatial tasks during object grasping.
Keywords:
NASA Center ARCNASA Discipline Space Human Factors

Related Experiment Videos

  • Experiments 2 & 3: Varied visuomotor and semantic tasks to isolate effects.

    • Main Results:

    • Semantic tasks, but not visuospatial tasks, interfered with appropriate object grasping.
    • A visuomotor task without semantic components showed reversed interference patterns.
    • Retrieving semantic information was crucial for effective, use-appropriate grasping.

    Conclusions:

    • Semantic processing is essential for guiding object manipulation based on use.
    • The visuomotor system can perform effective grasps without semantic input, but not appropriate ones.
    • Cognitive and action systems show a necessary interaction for semantically guided behavior.