Abstract
Retinal projection to the pulvinar area of the Asiatic chipmunk was studied, at both the light and electron microscopic level, using the anterograde transport of horseradish peroxidase (HRP). At the light microscopic level, this approach revealed a narrow strip of labeled retinal terminals in the rostral part of the contralateral pulvinar. This strip of labeling was oriented dorso-ventrally and located in the vicinity of the medial margin of this nucleus. Under the electron microscopic observation, the labeled presynaptic boutons were found to contain ovoid, clear vesicles and make asymmetrical contacts predominantly with the dndrites in the pulvinar region.
