Summary: PursuitVestibular Interactions in Brain Stem Neurons During Rotation
Hui Meng, Andrea M. Green, J. David Dickman, and Dora E. Angelaki
Department of Neurobiology, Washington University School of Medicine, St. Louis, Missouri
Submitted 7 December 2004; accepted in final form 7 January 2005
Meng, Hui, Andrea M. Green, J. David Dickman, and Dora E.
Angelaki. Pursuitvestibular interactions in brain stem neurons dur-
ing rotation and translation. J Neurophysiol 93: 34183433, 2005.
First published January 12, 2005; doi:10.1152/jn.01259.2004. Under
natural conditions, the vestibular and pursuit systems work synergis-
tically to stabilize the visual scene during movement. How transla-
tional vestibular signals [translational vestibuloocular reflex (TVOR)]
are processed in the premotor pathways for slow eye movements
continues to remain a challenging question. To further our understand-
ing of how premotor neurons contribute to this processing, we recorded
neural activities from the prepositus and rostral medial vestibular nuclei
in macaque monkeys. Vestibular neurons were tested during 0.5-Hz
rotation and lateral translation (both with gaze stable and during VOR
cancellation tasks), as well as during smooth pursuit eye movements.
Data were collected at two different viewing distances, 80 and 20 cm.