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Related Experiment Videos

Parietal cortex: from sight to action

G Rizzolatti1, L Fogassi, V Gallese

  • 1Istituto di Fisiologia Umana, Università di Parma, Via Gramsci 14, 43100, Parma, Italy. Fisioum@Symbolic.Pr.lt

Current Opinion in Neurobiology
|August 1, 1997
PubMed
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New research redefines the parietal cortex's function, revealing distinct fronto-parietal circuits for sensorimotor control. These circuits, not a unitary space perception, manage actions involving hand, arm, eye, and head movements.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience

Background:

  • The traditional view of the parietal cortex is being challenged by recent discoveries.
  • The parietal lobe is now understood as comprising multiple areas with specific frontal connections.

Purpose of the Study:

  • To elucidate the functional role of the parietal cortex and its connections with the frontal lobe.
  • To explain how fronto-parietal circuits contribute to sensorimotor transformations and space computation.

Main Methods:

  • Review of recent neuroscientific findings.
  • Analysis of functional connectivity between parietal and frontal areas.

Main Results:

  • The parietal lobe comprises multiple specialized areas connected to the frontal lobe.

Related Experiment Videos

  • These fronto-parietal circuits mediate distinct sensorimotor transformations for controlling movements (hand, arm, eye, head).
  • Space perception arises from the integrated activity of these circuits, not a single entity.

    • Conclusions:

    • The functional role of the parietal cortex is radically redefined.
    • Space perception is a product of joint activity within fronto-parietal circuits controlling action.
    • Understanding these circuits is key to comprehending sensorimotor control and spatial cognition.