Cerebellar fastigial neurons send bifurcating axons to both the left and right superior colliculus in cats.
Anesthetized cats were injected with 2% Fast Blue and 0.5% Nuclear Yellow into the intermediate and deep layers of the left and right superior colliculus, respectively. In the right caudal part of the cerebellar fastigial nucleus (cFN), double-labeling was found in 38.5% of the neurons labeled with Fast Blue, and in 11.5% of the neurons labeled with Nuclear Yellow. In the left cFN, 52.2% of the neurons labeled with Fast Blue and 11.0% of the neurons labeled with Nuclear Yellow were double-labeled. The results suggest a role of bifurcating fastigial fibers in cerebellar visual control.
Katoh
Yoshimitsu Yuki
YY
Department of Anatomy, Fujita Health University, School of Health Sciences, Toyoake, Aichi 470-1192, Japan. ykatoh@fujita-hu.ac.jp
Benedek
György
G
D000818:Animals; D001369:Axons / Q000737:chemistry / Q000502:physiology*; D002415:Cats; D002529:Cerebellar Nuclei / Q000737:chemistry / Q000502:physiology*; D002531:Cerebellum / Q000737:chemistry / Q000502:physiology; D009434:Neural Pathways / Q000737:chemistry / Q000502:physiology; D009474:Neurons / Q000737:chemistry / Q000502:physiology; D013477:Superior Colliculi / Q000737:chemistry / Q000502:physiology*