Mental-rotation deficits following damage to the right basal ganglia

Irina M. Harris, Justin A. Harris, Diana Caine

    Research output: Contribution to journalArticlepeer-review


    The authors report the case of a woman with a right basal ganglia lesion and severe mental-rotation impairments. She had no difficulty recognizing rotated objects and had intact left-right orientation in egocentric space but was unable to map the left and right sides of external objects to her egocentric reference frame. This study indicates that the right basal ganglia may be critical components in a cortico-subcortical network involved in mental rotation. We speculate that the role of these structures is to select and maintain an appropriate motor program for performing smooth and accurate rotation. The results also have important implications for theories of object recognition by demonstrating that recognition of rotated objects can be achieved without mental rotation.
    Original languageEnglish
    Pages (from-to)524-537
    Number of pages13
    Issue number4
    Publication statusPublished - Oct 2002


    • Aged
    • pathology: Basal Ganglia
    • complications: Cerebrovascular Accident
    • diagnosis: Cognition Disorders
    • Female
    • Humans
    • Magnetic Resonance Imaging
    • physiopathology: Nerve Net
    • Neuropsychological Tests
    • Reaction Time
    • Recognition (Psychology)
    • Rotation
    • Tomography, X-Ray Computed


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