- Maryellen Romero
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A routine procedure in a neurological examination in which patients are asked to extend both arms anteriorly and hold them at shoulder height with the palms facing up (supine position) for at least 10 s while keeping their eyes closed. The pathological response is for one of the arms to drift (up, down, or out) and/or for the hand to begin to pronate (turn palm down). Such a response can be indicative of either an upper motor neuron lesion anywhere along the neuroaxis, or from a disturbance of proprioception anywhere from the parietal cortex down. An upward or lateral drift of the arm, with or without pronation, tends to be more suggestive of a proprioceptive than a motor (weakness) deficit, although a downward drift does not rule out a problem with proprioception.
A manifestation of upper motor neuron (UMN) disease, in which the affected patient is unable to maintain a posture of outstretched hands held in the palms-up (supine) position with the eyes closed. In the ...
- Ross, R. T. (1999). How to examine the nervous system (3rd ed.). Stamford, CT: Appleton & Lange.
- Pronator Drift
- Reference Work Title
- Encyclopedia of Clinical Neuropsychology
- p 2050
- Print ISBN
- Online ISBN
- Springer New York
- Copyright Holder
- Springer Science+Business Media, LLC
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- Editor Affiliations
- 671. Physical Medicine and Rehabilitation, and Professor of Neurosurgery, and Psychiatry Virginia Commonwealth University – Medical Center Department of Physical Medicine and Rehabilitation
- 672. Kessler Foundation Research Center
- 673. Professor of Physical Medicine and Rehabilitation, and Neurology and Neuroscience, University of Medicine and Dentistry of New Jersey – New Jersey Medical School
- 674. Independent Practice
- Maryellen Romero (16223)
- Author Affiliations
- 16223. Assistant Professor of Psychiatry, Department of Psychiatry and Neurology Tulane University Health Sciences Center, 1440 Canal Street, TB-53, 70112, New Orleans, LA, USA
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