Kojiro Watanabe

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Efferent projections of the zona incerta were examined in the rat using the autoradiographic and horseradish peroxidase methods, with special reference to the cytoarchitectonic structure of the zona incerta. Autoradiographic experiments showed that the incertofugal fiber systems reach ipsilaterally to the thalamus (lateral dorsal, central lateral, ventral(More)
The parabigeminal nucleus of the rat was made up of the dorsal, middle and ventral subgroups. When HRP was introduced into the superficial layer of the superior colliculus, labeled neurons were observed in the ipsilateral dorsal and ventral subgroups and in the contralateral middle subgroup. It was demonstrated that neurons of the dorsal and ventral(More)
The intracellular pressure-injection of HRP was applied to the rat hippocampus and has brought an excellent presentation of the Golgi-like image of the pyramidal neuron. Rats were allowed to survive for 3 days and brain sections were treated with the PAP-immunohistochemical technique to enhance the sensitivity of HRP neurohistochemistry. The pyramidal(More)
The mammillary projections to the anterior thalamic nuclei were investigated in the rat, using the horseradish peroxidase (HRP) method. Pars centralis of the medial mammillary nucleus projects to the medial portion of the ateromedial nucleus (AM). Pars medialis (Mm) of the medial mammillary nucleus sends fibers to the ipsilateral AM and sparsely to the(More)
The structural organization of zona incerta was studied in 11 brains of adult rats sectioned sagittally, transversally and horizontally and stained with cresylviolet. The following subregions could be differentiated on the basis of cytoarchitectural criteria: (1) pars rostro-polaris and (2) retro-polaris, (3) pars magnocellularis, (4) pars ventralis, (5)(More)
The trigeminal nerve has motor, intermediate and sensory roots in the dog. The motor root is composed of two bundles: the medial and ventral. The ventral motor root emerges from the pons, forming the common root with the sensory, and then is separated from it to run along with the medial motor root which separately exits from the pons as the ordinary motor(More)
In this organization overview, we explain our approach to next generation hypermedia environment. We discuss the importance of Computer-Human Interaction and ways to provide high level authoring and augmentation capabilities as key components for the environment. CHI will contribute to integrating hypermedia functions with media contents for improving(More)
After an injection of [3H]D-aspartate into the olfactory bulb of the rat, retrogradely labeled cells were detected bilaterally in the anterior olfactory nucleus (AON), and ipsilaterally in the pyriform cortex (PC) and nucleus of the lateral olfactory tract (NLOT). These results suggest a certain selective retrograde transport of this amino acid, and are(More)
Prostaglandin F synthase has at least two isozymes, i.e. prostaglandin F synthase I and II. Recently, we demonstrated immunocytochemically that prostaglandin F synthase I was localized in neuronal dendrites and somata, and in endothelial cells of blood vessels in the whole area of rat spinal cord. In the present study, we immunocytochemically localized(More)