|
|
||||||||
The Journal of Neurophysiology Vol. 87 No. 4 April 2002, pp. 1772-1780
Copyright ©2002 by the American Physiological Society
1Center for Systems Engineering and Applied Mechanics and Laboratory of Neurophysiology, Université Catholique de Louvain, B-1200 Brussels, Belgium; 2Smith Kettlewell Eye Research Institute, San Francisco, California 94115; and 3Department of Optometry and Neuroscience, University of Manchester Institute of Science and Technology, Manchester M60 1QD, United Kingdom
de Brouwer, Sophie,
Marcus Missal,
Graham Barnes, and
Philippe Lefèvre.
Quantitative Analysis of Catch-Up Saccades During Sustained
Pursuit. J. Neurophysiol. 87: 1772-1780, 2002. During visual tracking of a moving stimulus, primates orient
their visual axis by combining two very different types of eye movements, smooth pursuit and saccades. The purpose of this paper was
to investigate quantitatively the catch-up saccades occurring during
sustained pursuit. We used a ramp-step-ramp paradigm to evoke catch-up
saccades during sustained pursuit. In general, catch-up saccades
followed the unexpected steps in position and velocity of the target.
We observed catch-up saccades in the same direction as the smooth eye
movement (forward saccades) as well as in the opposite direction
(reverse saccades). We made a comparison of the main sequences of
forward saccades, reverse saccades, and control saccades made to
stationary targets. They were all three significantly different from
each other and were fully compatible with the hypothesis that the
smooth pursuit component is added to the saccadic component during
catch-up saccades. A multiple linear regression analysis was performed
on the saccadic component to find the parameters determining the
amplitude of catch-up saccades. We found that both position error and
retinal slip are taken into account in catch-up saccade programming to
predict the future trajectory of the moving target. We also
demonstrated that the saccadic system needs a minimum period of
approximately 90 ms for taking into account changes in target
trajectory. Finally, we reported a saturation (above 15°/s) in the
contribution of retinal slip to the amplitude of catch-up saccades.
This article has been cited by other articles:
![]() |
G. R. Case and V. P. Ferrera Coordination of Smooth Pursuit and Saccade Target Selection in Monkeys J Neurophysiol, October 1, 2007; 98(4): 2206 - 2214. [Abstract] [Full Text] [PDF] |
||||
![]() |
J.-J. Orban de Xivry and P. Lefevre Saccades and pursuit: two outcomes of a single sensorimotor process J. Physiol., October 1, 2007; 584(1): 11 - 23. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. J. Bennett, J.-J. O. de Xivry, G. R. Barnes, and P. Lefevre Target Acceleration Can Be Extracted and Represented Within the Predictive Drive to Ocular Pursuit J Neurophysiol, September 1, 2007; 98(3): 1405 - 1414. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. J. Heinen Oculomotor Hide and Seek: Pursuing an Accelerating Target Behind an Occluder. Focus on "Target Acceleration Can Be Extracted and Represented Within the Predictive Drive to Ocular Pursuit" J Neurophysiol, September 1, 2007; 98(3): 1073 - 1074. [Full Text] [PDF] |
||||
![]() |
C. Schreiber, M. Missal, and P. Lefevre Asynchrony Between Position and Motion Signals in the Saccadic System J Neurophysiol, February 1, 2006; 95(2): 960 - 969. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Guillaud, G. Gauthier, J.-L. Vercher, and J. Blouin Fusion of Visuo-ocular and Vestibular Signals in Arm Motor Control J Neurophysiol, February 1, 2006; 95(2): 1134 - 1146. [Abstract] [Full Text] [PDF] |
||||
![]() |
J.-J. Orban de Xivry, S. J. Bennett, P. Lefevre, and G. R. Barnes Evidence for Synergy Between Saccades and Smooth Pursuit During Transient Target Disappearance J Neurophysiol, January 1, 2006; 95(1): 418 - 427. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Blohm, M. Missal, and P. Lefevre Direct Evidence for a Position Input to the Smooth Pursuit System J Neurophysiol, July 1, 2005; 94(1): 712 - 721. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. Boeddeker and M. Egelhaaf A single control system for smooth and saccade-like pursuit in blowflies J. Exp. Biol., April 15, 2005; 208(8): 1563 - 1572. [Abstract] [Full Text] [PDF] |
||||
![]() |
T EGGERT, Y GUAN, O BAYER, and U BUTTNER Saccades to Moving Targets Ann. N.Y. Acad. Sci., April 1, 2005; 1039(1): 149 - 159. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Blohm, M. Missal, and P. Lefevre Processing of Retinal and Extraretinal Signals for Memory-Guided Saccades During Smooth Pursuit J Neurophysiol, March 1, 2005; 93(3): 1510 - 1522. [Abstract] [Full Text] [PDF] |
||||
![]() |
Y. GUAN, T. EGGERT, O. BAYER, and U. BUTTNER Analysis of Saccades to Stationary and Moving Targets in the Monkey Ann. N.Y. Acad. Sci., October 1, 2003; 1004(1): 385 - 388. [Full Text] [PDF] |
||||
![]() |
G. Blohm, M. Missal, and P. Lefevre Interaction Between Smooth Anticipation and Saccades During Ocular Orientation in Darkness J Neurophysiol, March 1, 2003; 89(3): 1423 - 1433. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Missal and E. L. Keller Common Inhibitory Mechanism for Saccades and Smooth-Pursuit Eye Movements J Neurophysiol, October 1, 2002; 88(4): 1880 - 1892. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |