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Related Experiment Videos

Human parietal cortex in action.

Jody C Culham1, Kenneth F Valyear

  • 1Department of Psychology, Social Science Centre, University of Western Ontario, London, Ontario, Canada, N6A 5C2. culham@imaging.robarts.ca

Current Opinion in Neurobiology
|March 28, 2006
PubMed
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The human parietal cortex, particularly the posterior parietal cortex, is specialized for visuomotor actions and processing action-related information, even without overt movement. This review explores its subregions and organizational principles.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • The parietal lobes contain specialized regions for visuomotor actions like reaching and grasping.
  • The human parietal cortex processes action-related information, including object properties and observed actions, even without overt motor output.

Purpose of the Study:

  • To review the known subregions of the human posterior parietal cortex.
  • To elucidate the organizational principles governing these parietal subregions.

Main Methods:

  • Functional neuroimaging techniques (e.g., fMRI) were employed.
  • Transcranial magnetic stimulation (TMS) was utilized in human experiments.

Main Results:

  • Specific parietal lobe regions are specialized for distinct visuomotor actions.

Related Experiment Videos

  • Parietal cortex activation occurs during the perception of action-related information, independent of motor execution.

    • Conclusions:

    • The posterior parietal cortex exhibits functional specialization for various visuomotor tasks.
    • Understanding the organization of parietal subregions is crucial for comprehending action perception and control.