30%Horseradish Peroxidase was ingected into the nueleus lateralis dorsalis and nucleus lateralis posterior of thalamus. The result shows that thalamus has much more labeled cells than the cerebral. The midbrain has the leaet.We discussed the labeled cells of the cerebral cortex, putamencaudatus, nucleus reticular and ventral nucleus of thalamus, formatio retieaularis of midbrain.