Table 2.

Distribution of ventral thalamic projections to specific dorsal striatal sites

Nucleus	MN66L	MN102	MR29	MN44	MN43	MN45	MN39	MN32
VPLo	+++	++(+)	(+)	+	−	+	−	−
VLo	+++(+)	++++	++++	+++	++++	+++	++	++++
VLc	−	+	+	++	++	++	−	+++
Area X	+	+	(+)	+++	+++	+++	−	−
VA	+	+	−	+	+++	++	+++	++
VAmc	−	+	(+)	+	(+)	−	−	−

Values are based on relative densities of retrogradely labeled neurons in each thalamic nucleus as seen in representative coronal sections (0.8–1.2 mm apart), where − represents no retrogradely labeled cells observed and + to ++++ represent increasing relative densities from few cells to very dense labeling (parentheses denote an intermediate weighting). To facilitate comparison between cases, the density of retrogradely labeled neurons in each thalamic nucleus is weighted relative to the nucleus with the densest labeling in each case. VPLo, Ventral posterior lateral pars oralis; VLo, ventral lateral pars oralis; VLc, ventral lateral pars caudalis; VA, ventral anterior pars parvicellular; VAmc, ventral anterior pars magnocelluaris.