An experimental electron microscopical study of a direct retino-pulvinar pathway in the tree shrew

Abstract
After unilateral enucleation in the tree shrew (Tupaia glis), axo-dendritic synapses degenerate within two secondary visual centers (intergenicu-late and lateral pulvinar nuclei). Degenerated optic terminals were found in both pulvinar nuclei on the contralateral side much more often than on the ipsilateral one.