Relativistic effects in single-joint voluntary movements

M. L. Latash, S. R. Gutman, G. L. Gottlieb

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We assume that there is an upper limit for the rate of change of controlled variables in the motor control system. Superposition of two single-joint motor programs can lead to a distortion of their simple algebraic summation similar to relativistic Lorenz transformations. Experiments were carried out with the subjects performing fast oscillatory elbow movements on the background of a smooth elbow flexion. Changes in the period of oscillations during the smooth movement were used as index of time tranformations. Statistically 5%-7% changes in the period were observed for each of the subjects corresponding to the predictions of the model.

Original languageEnglish (US)
Pages (from-to)401-406
Number of pages6
JournalBiological Cybernetics
Issue number5
StatePublished - Sep 1991

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • General Computer Science


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