Summary

1) Different motor systems adopt different forms of Donders' law
  • the head and arm act like a Fick gimbal
  • saccades (and pursuit eye movements) follow Listing's law
  • vergence eye movements act like a Helmholtz gimbal

2) Each optimizes different movements.


Copyright © 1996 Tutis Vilis and Douglas Tweed
University of Western Ontario
London Ontario Canada
Updated October 28, 2005

Comments welcome. Email to tutis.vilis@schulich.uwo.ca