Origin of torsional eye movements
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- riMLF burst neurons cause the contraction of eye muscles which not
only rotate the eye vertically but also torsionally.
- The two sides are not equal.
- riMLF neurons on the right side act on muscles with a clockwise (CW)
action (as seen in the figure).
- Those on left act on muscles with counterclockwise (CCW) action.
- Neurons in the INC tonic produce a tonic component which keeps the
eye position deviated from center both vertically and torsionally
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Copywrite © 1996 Tutis Vilis and
Douglas Tweed
Department of Physiology
University of Western Ontario
London Ontario Canada
Updated October 01, 1996
Comments welcome. Email to tvilis@physiology.uwo.ca