(1) Eye development in zebrafish first becomes morphologically obvious at the 6 somite stage, the time at which the optic lobes evaginate from the diencephalon .(2) The latter includes the diencephalon ; mesencephalon, or midbrain; pons; and medulla oblongata.(3) The neurohypophysis, or posterior pituitary, is derived from an evagination of the infundibular portion of the diencephalon of the brain.(4) The internal capsule and corona radiata have been exposed by removal of the corpus callosum, caudate nucleus, and diencephalon .(5) From previous anatomical data, we hypothesize that the level of such actions is suprametameric, with strong implication of the diencephalon and cerebral cortex.(6) To elucidate the diencephalic organization at such an early stage of development, we first established a rostral neural plate gene expression map.(7) Transversal cut at the level of the anterior preoptic area showing ACTH-immunoreactivity cell groups around the diencephalic ventricle.(8) Two cases studies of infants with a diencephalic syndrome resulting from optic nerve glioma are presented.(9) The red nucleus has been cleaned so that its larger, spherical mesencephalic part can be distinguished from the more rostral, ovoid diencephalic part.(10) He showed that electro-acupuncture stimulation can affect the diencephalic area of the brain, a region that promotes the body's own healing responses.