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Brain: Nucleus centralis superior
Latin	nucleus raphes medianus
NeuroNames	hier-557
Dorlands/Elsevier	n_11/12582808

The nucleus centralis superior is composed of polygonal, fusiform and pyriform neurons and exists rostral to the nucleus raphe pontis.

One fascinating trait of the NCS is its inhibition by lysergic acid diethylamide and psilocin, two serotonin antagonist hallucinogens. The inactivation of the nucleus centralis superior via LSD produces a dose dependent inactivation in the NCS, but not in the raphe pallidus.

The free-moving cats, in which this was discovered, exhibited dose dependent behavioral changes <ref>Trulson, M.E., Preussler DW and Trulson V.M. Differential effects of hallucinogenic drugs on the activity of serotonin-containing neurons in the nucleus centralis superior and nucleus raphe pallidus in free-moving cats. American Society for Pharmacology and Experimental Therapeutics Volume 228, Issue 1, pp. 94-102, 01/01/1984</ref>.

[edit] See also

• Raphe nuclei

[edit] References

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Rhombencephalon (hindbrain)

MYELENCEPHALON/MEDULLA: arcuate nucleus of medulla, solitary nucleus, hypoglossal nucleus, nucleus ambiguus, olivary body, inferior olivary nucleus, cuneate nucleus, accessory cuneate nucleus, gracile nucleus, inferior salivatory nucleus, raphe nuclei (obscurus, magnus, pallidus), area postrema, posterior nucleus of vagus nerve METENCEPHALON/CEREBELLUM: cerebellar vermis, flocculus, arbor vitae METENCEPHALON/PONS: pontine tegmentum, superior salivary nucleus, trapezoid body, pontine nuclei (superior olivary nucleus, trigeminal nerve nuclei, abducens nucleus, facial motor nucleus, cochlear nuclei, vestibular nuclei), locus ceruleus, paramedian pontine reticular formation, nucleus centralis superior FOURTH VENTRICLE: obex, median aperture