Sperl M, Manteuffel G
Brain Res. 1987 Feb 24;404(1-2):332-4. doi: 10.1016/0006-8993(87)91389-8.
Single-unit recordings from visual afferents in the pretectal neuropil of Salamandra salamandra were performed to characterize the properties of direction specific units which are probably involved in the optokinetic reflex. It was shown that afferents from the contralateral eye were more sharply tuned than those from the ipsilateral eye. However, the majority of both were selective for temporonasal movements.
