Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale
-
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. ⋯ Vestibular nerve activity was not influenced by optokinetic patterns or additional visual stimuli during combined visual-vestibular stimulation. Thus, in contrast to vestibular nuclei neurons, vestibular nerve activity in the alert monkey is only determined by head acceleration and cannot be related to the nystagmus response or visual stimuli.