Boundaries and Connections of the Ventral Pallidum in Rat and Monkey, with Reference to Man
The ventral pallidum was first described in the rat by Heimer and Wilson (1975) as an extension of the globus pallidus, stretching ventrally and rostrally beneath the anterior commissure. Its identification as part of the pallidum was originally based on the cytological similarities with the globus pallidus as well as the fact that it receives its major input from the striatum, in particular the nucleus accumbens (Wilson, 1972; Williams et al., 1977; Nauta et al., 1978). In addition, it shares with the globus pallidus a substantial projection from the subthalamic nucleus (Ricardo, 1980), a high iron content (Switzer and Hill 1979; Hill and Switzer 1984), glutamic-acid-decarboxylase-like immunoreactivity (Fallon and Ribak, 1980; Zahm et al., 1985) and enkephalin-like immunoreactivity (Haber and Nauta, 1983).
KeywordsNucleus Accumbens Ventral Tegmental Area Globus Pallidus Subthalamic Nucleus Anterior Commissure
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