Encyclopedia of Clinical Neuropsychology

2011 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Motor Impersistence

Reference work entry
DOI: https://doi.org/10.1007/978-0-387-79948-3_2046



Motor impersistence is the inability to maintain postures or positions (such as keeping eyes closed, protruding the tongue, maintaining conjugate gaze steadily in a fixed direction, or making a prolonged “ah” sound) without repeated prompts. Simultanapraxia, a subset of motor impersistence, has been defined as the inability to perform more than two of the simple voluntary acts simultaneously, such as closing the eyes and protruding the tongue. According to research (Kertesz, Nicholson, Cancelliere, Kassa, & Black, 1985; Rosse & Ciolino, 1986; Stuss, Delgado, & Guzman, 1987), it is most likely seen in patients with right frontal damage. Joynt, Benton, and Fotel (Joynt, Benton, & Fogel, 1962) developed a standardized objective test to measure motor impersistence.

Cross References

References and Readings

  1. Joynt, R. J., Benton, A. L., & Fogel, M. L. (1962). Behavioral and pathological correlates of motor impersistence. Neurology, 12, 876–881.PubMedGoogle Scholar
  2. Kertesz, A., Nicholson, I., Cancelliere, A., Kassa, K., & Black, S. E. (1985). Motor impersistence: A right-hemisphere syndrome. Neurology, 35(5), 662–666.PubMedGoogle Scholar
  3. Rosse, R. B., & Ciolino, C. P. (1986). Motor impersistence mistaken for uncooperativeness in a patient with right-brain damage. Psychosomatics, 27(7), 532–534.PubMedGoogle Scholar
  4. Stuss, D. T., Delgado, M., & Guzman, D. A. (1987). Verbal regulation in the control of motor impersistence: A proposed rehabilitation procedure. Neurorehabilitation and Neural Repair, 1(1), 19–24.Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Butler Hospital and Alpert Medical School of Brown UniversityProvidenceUSA