Dr. U. Büttner

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Activity of vestibular nerve fibers and eye movements were recorded in the alert monkey during natural stimulation. The animal was rotated about a vertical axis in the dark with velocity trapezoids (vestibular), or a striped cylinder was rotated around the stationary monkey (optokinetic), or these stimuli were combined. After velocity steps in the dark,(More)
Single neurons were recorded in the vestibular nuclei of monkeys trained to suppress nystagmus by visual fixation during vestibular or optokinetic stimulation. During optokinetic nystagmus vestibular nuclei neurons exhibit frequency changes. With the suppression of optokinetic nystagmus this neuronal activity on average is attenuated by 40% at stimulus(More)
In alert monkeys (Macaca mulatta and fascicularis) the effect of central retinal lesions on ‘fast’ optokinetic responses was investigated during high velocity optokinetic and visual-vestibular conflict stimulation. The ‘fast’ component of the optokinetic response manifests itself as a rapid rise in the slow-phase eye velocity after light-on, during high(More)
1. The action potentials of single optic tract axons were recorded in cats anaesthetized by pentobarbital. The receptive fields were stimulated with brief light flashes (20 or 25 msec) of variable area (0.18≤A≤11.8 degrees) and stimulus intensity (0.36≤I≤360 cd·m−2). 2. Retinal on-center and off-center neurons responded in one of two ways to brief light(More)
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