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Quantitative analysis of voluntary and involuntary motor phenomena in Parkinson’s disease

  • H. Hefter
  • V. Hömberg
  • H.-J. Freund
Part of the Key Topics in Brain Research book series (KEYTOPICS)

Summary

Different approaches to quantify motor impairment in Parkinson’s disease (PD) are presented which are helpful in the early diagnosis and therapy control: frequency analysis of tremor (involuntary finger and hand movements), frequency analysis of most rapid voluntary alternating finger movements, test of ability to move the fingers following a variable target frequency (hastening phenomenon), analysis of trajectories of most rapid single isometric indexfinger extensions, aming movements between two target zones of variable size (Fitt’s law) and unrestricted pointing movements. With these methods the interaction between voluntary and involuntary movements can be quantified.

Keywords

Movement Time Target Zone Force Pulse Fast Fourier Trans Contraction Curve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Fitts PM (1954) The information capacity of the human motor system in controlling the amplitude of movement. J Exp Psychol 47: 381–391PubMedCrossRefGoogle Scholar
  2. Freund H J, Büdingen HJ (1978) The relationship between speed and amplitude of the fastest voluntary contractions of human arm muscles. Exp Brain Res 31: 1–12PubMedCrossRefGoogle Scholar
  3. Hefter H, Hömberg V, Reiners K, Freund H-J (1985) Aktionstremor bei Parkinson-Patienten mit und ohne Ruhetremor. In: Schnaberth G, Auff E (Hrsg) Das Parkinson-Syndrom. Editiones Roche, Wien, BaselGoogle Scholar
  4. Hefter H, Hömberg V, Reiners K, Freund H-J (1987a) Stability of frequency during long-term recordings of hand tremor. Electroencph Clin Neurophysiol 67: 439–446CrossRefGoogle Scholar
  5. Hefter H, Hömberg V, Lange H, Freund H-J (1987b) Impairment of rapid movements in Huntington’s disease. Brain 110: 585–612CrossRefGoogle Scholar
  6. Hömberg V, Hefter H, Freund H-J (1985) Einfluß von Naloxon auf Bradykinese und Reaktionszeiten bei Parkinson-Patienten. In: Schnaberth G, Auff E (Hrsg) Das Parkinson-Syndrom. Editiones Roche, Wien, BaselGoogle Scholar
  7. Hömberg V, Hefter H, Reiners K, Freund H-J (1987) Differential effects of changes in mechanical limb properties on physiological and pathological tremor. J Neurol Neurosurg Psychiatr 50: 568–579PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag/Wien 1989

Authors and Affiliations

  • H. Hefter
    • 1
  • V. Hömberg
    • 1
  • H.-J. Freund
    • 1
  1. 1.Department of NeurologyUniversity of DüsseldorfFederal Republic of Germany

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