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Hemikinesis

  • Living reference work entry
  • First Online:
Encyclopedia of Clinical Neuropsychology

  • 38 Accesses

Synonyms

Hemispatial motor planning deficit; Hypokinesia

Definition

Hemiakinesia is a disorder of action in which subjects with a brain lesion exhibit difficulty in moving the contralesional body that cannot be attributed to hemiparesis or peripheral nervous system dysfunction. Subjects with this disorder may fail to gaze to the side opposite a lesion or, when instructed to lift both arms, may fail to elevate the contralesional arm. Crucially, these subjects may be shown in other tasks to have the capacity to perform the task; for example, the subject who fails to lift the contralesional arm when instructed to elevate both arms may succeed in lifting the arm when instructed to lift only that arm.

Current Knowledge

Evidence for the clinical disorder of hemiakinesia comes from the often-striking effects of hemispace on motor performance. A number of investigators have demonstrated that subjects may perform better when using the impaired limb in the contralesional as opposed to...

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References and Readings

  • Coslett, H. B. (1999). Spatial influences on motor and language function. Neuropsychologia, 37, 695–706.

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  • Coslett, H. B., Schwartz, M. F., Goldberg, G., Haas, D., & Perkins, J. (1993). Multi-modal hemispatial deficits after left hemisphere stroke: A deficit in attention? Brain, 116, 527–554.

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  • Ghacibeh, G. A., Shenker, J. I., Winter, K. H., Triggs, W. J., & Heilman, K. M. (2007). Dissociation of neglect subtypes with transcranial magnetic stimulation. Neurology, 69, 1122–1127.

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  • Heilman, K. M., Valenstein, E., & Watson, R. T. (2000). Neglect and related disorders. Seminars in Neurology, 20, 463–470.

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Author information

Authors and Affiliations

  1. Department of Neurology, University of Pennsylvania, HUP, 3400 Spruce Street, 19104, Philadelphia, PA, USA

    H. Branch Coslett

Authors
  1. H. Branch Coslett
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Corresponding author

Correspondence to H. Branch Coslett .

Editor information

Editors and Affiliations

  1. Richmond, Virgin Islands, USA

    Jeffrey Kreutzer

  2. Kessler Foundation , West Orange, New Jersey, USA

    John DeLuca

  3. Suite 200 , Wynnewood, Pennsylvania, USA

    Bruce Caplan

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© 2017 Springer International Publishing AG

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Branch Coslett, H. (2017). Hemikinesis. In: Kreutzer, J., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-56782-2_1306-2

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  • DOI: https://doi.org/10.1007/978-3-319-56782-2_1306-2

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-56782-2

  • Online ISBN: 978-3-319-56782-2

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