1. Andrezik J. A. and Beitz A. J. (1985) Reticular formation, central gray and related tegmental nuclei. In The Rat Nervous System (ed. Paxinos G.), pp. 1–8. Academic, New York.
2. Wild running elicited by microinjections of bicuculline or morphine into the inferior colliculus of rats: lack of effect of periaqueductal gray lesions;Bagri;Pharmac. Biochem. Behav.,1992
3. Columnar organization in the midbrain periaqueductal gray: modules for emotional expression?;Bandler;Trends Neurosci.,1994
4. The organization of afferent projections to the midbrain periaqueductal gray of the rat;Beitz;Neuroscience,1982
5. The midbrain periaqueductal gray in the rat. I. Nuclear volume, cell number, density, orientation, and regional subdivisions;Beitz;J. comp. Neurol.,1985