Sharon Steadman Barbera

University of Utah, Salt Lake City, Utah, United States

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Publications (1)1.4 Total impact

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    ABSTRACT: Models of corticostriatal motor circuitry have focused on the role of the circuit in the hemisphere of the motor cortex providing primary control (contralateral to the movement). We used functional magnetic resonance imaging and functional connectivity analyses to study circuit function in both the controlling and noncontrolling hemispheres. During the completion of a unilateral motor task with either hand, each putamen nucleus demonstrated strong coactivation with structures in both hemispheres. The putamen in the noncontrolling hemisphere (ipsilateral to the movement) coactivated more strongly with the controlling motor cortex than with the noncontrolling cortex. These findings suggest that the two corticostriatal circuits are functionally integrated. New circuit models based on functional connectivity may need to be developed.
    Neuroreport 06/2008; 19(9):957-60. · 1.40 Impact Factor

Publication Stats

28 Citations
1.40 Total Impact Points

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Institutions

  • 2008
    • University of Utah
      Salt Lake City, Utah, United States
    • U.S. Department of Veterans Affairs
      Washington, Washington, D.C., United States