Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Motor Impersistence

  • Irene PiryatinskyEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_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 et al. 1985; Rosse and Ciolino 1986; Stuss et al. 1987), it is most likely seen in patients with right frontal damage. Joynt et al. (1962) developed a standardized objective test to measure motor impersistence.


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.CrossRefGoogle 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.CrossRefPubMedPubMedCentralGoogle 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.CrossRefPubMedPubMedCentralGoogle 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.CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

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