Properties of saccades during optokinetic responses to radial optic flow in monkeys
M. Lappe, M. Pekel & K.-P. Hoffmann
In: Current Oculomotor Research: Physiological and Psychological Aspects, W. Becker, H. Deubel & T. Mergner
(editors), Plenum, 1998
- Optokinetic eye movements stabilize vision in response to large-field visual motion. We have studied oculomotor
behavior of rhesus monkeys that viewed large optic flow stimuli. These stimuli present radial motion that is normally
experienced during forward self-movement. In previous work (Lappe, Pekel & Hoffmann, J.Neurophysiol, 1998)
we have described that such radial optic flow stimuli also elicit optokinetic responses in the form of slow eye
movements which stabilize the moving visual image on the fovea and parafovea. Here we describe the properties of
saccades during unrestrained viewing of radial optic flow. We show that the saccades do not share the reflectory
nature of the slow phases but rather support an active exploration of the visual scene.
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