Smooth Pursuit Eye Movements
نویسندگان
چکیده
6 7 Gunnar Blohm, Philippe Lefèvre 8 9 Centre for Neuroscience Studies, Department of Physiology and Faculty of Arts & 10 Science, Queen’s University, Kingston, Ontario, Canada 11 Centre for Systems Engineering and Applied Mechanics (CESAME) and Institute of 12 Neuroscience (IoNS), Université catholique de Louvain, Louvain-la-Neuve, 13 Belgium 14 15 16 17 Corresponding author: Dr. Gunnar Blohm 18 Queen’s University, 19 Centre for Neuroscience Studies 20 Botterell Hall 21 18, Stuart Street 22 Kingston, Ontario, K7L 3N6, Canada 23 Email: [email protected] 24 25 Articles in PresS. J Neurophysiol (August 18, 2010). doi:10.1152/jn.00728.2009
منابع مشابه
Role of the cerebellar flocculus region in the coordination of eye and head movements during gaze pursuit.
The contribution of the flocculus region of the cerebellum to horizontal gaze pursuit was studied in squirrel monkeys. When the head was free to move, the monkeys pursued targets with a combination of smooth eye and head movements; with the majority of the gaze velocity produced by smooth tracking head movements. In the accompanying study we reported that the flocculus region was necessary for ...
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Smooth pursuit eye movements stabilize slow-moving objects on the retina by matching eye velocity with target velocity. Two critical components are required to generate smooth pursuit: first, because it is a voluntary eye movement, the subject must select a target to pursue to engage the tracking system; and second, generating smooth pursuit requires a moving stimulus. We examined whether this ...
متن کاملSmooth-pursuit eye-movement deficits with chemical lesions in macaque nucleus reticularis tegmenti pontis.
Anatomic and neuronal recordings suggest that the nucleus reticularis tegmenti pontis (NRTP) of macaques may be a major pontine component of a cortico-ponto-cerebellar pathway that subserves the control of smooth-pursuit eye movements. The existence of such a pathway was implicated by the lack of permanent pursuit impairment after bilateral lesions in the dorsolateral pontine nucleus. To provid...
متن کاملNeuronal activity in the primate globus pallidus during smooth pursuit eye movements.
Although the roles of the basal ganglia in the control of saccadic eye movements have been extensively examined, little is known about their roles in smooth pursuit. Recent anatomical data suggest that, like somatic movements, smooth pursuit may also be regulated by signals through the basal ganglia thalamocortical pathways. To understand whether the basal ganglia, especially the globus pallidu...
متن کاملInitiation of disjunctive smooth pursuit in monkeys: Evidence that Hering's law of equal innervation is not obeyed by the smooth pursuit system
Monkeys generated disjunctive smooth pursuit eye movements when they tracked visual targets that moved toward or away from them. Eye acceleration was computed during the initial 100 msec of pursuit (the open-loop interval) for various target trajectories. The initial acceleration of either eye was a function of the target's motion with respect to that eye, regardless of whether or not the pursu...
متن کاملEnhanced brain responses to color during smooth-pursuit eye movements.
Eye movements alter visual perceptions in a number of ways. During smooth-pursuit eye movements, previous studies reported decreased detection threshold for colored stimuli and for high-spatial-frequency luminance stimuli, suggesting a boost in the parvocellular system. The present study investigated the underlying neural mechanism using EEG in human participants. Participants followed a moving...
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