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Related Experiment Videos

Effects of stereotactic cingulumotomy on a sequential motor task in man

H S Levin, J T O'Neal, E S Barratt

    Applied Neurophysiology
    |January 1, 1975
    PubMed
    Summary

    Bilateral cingulumotomy did not impair sequential tapping in humans, contrary to prior research. This suggests the cingulum bundle is not essential for temporal motor control accuracy in humans.

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    Area of Science:

    • Neuroscience
    • Neurosurgery
    • Behavioral Science

    Background:

    • Previous studies suggested the cingulum bundle is crucial for sequential motor tasks.
    • Rat models indicated cingulate lesions impair motor sequencing.

    Purpose of the Study:

    • To investigate the effect of bilateral cingulumotomy on sequential tapping behavior in human patients.
    • To determine if the cingulum bundle is critical for temporal integration of motor performance in humans.

    Main Methods:

    • Bilateral cingulumotomy was performed on 6 patients.
    • Postoperative sequential tapping behavior was assessed.
    • Accuracy of sequential motor performance was measured.

    Main Results:

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  • No consistent decrement in postoperative sequential tapping performance was observed.
  • Contrary to predictions from rat studies, human performance remained largely unaffected.

    • Conclusions:

    • The cingulum bundle, at the level investigated, does not appear to be critically dependent for temporal integration of behavior.
    • Human sequential motor performance accuracy may not rely on the integrity of the cingulum bundle.