. Author manuscript; available in PMC: 2014 Nov 15.

Published in final edited form as: Behav Brain Res. 2013 Sep 25;257:10.1016/j.bbr.2013.09.032. doi: 10.1016/j.bbr.2013.09.032

Table 2.

Principal component analysis factor loadings for the six striatal VOIs

	Factor
	1	2

MA Posterior Putamen	.91	.10
LA Posterior Putamen	.80	.45
MA Anterior Putamen	.91	.22
LA Anterior Putamen	.82	.49
MA Ventral Putamen	.76	.57
LA Ventral Putamen	.70	.60
MA Caudate Head	.73	.59
LA Caudate Head	.57	.74
MA Middle Caudate	.63	.65
LA Middle Caudate	.41	.86
MA Inferior Caudate	.37	.79
LA Inferior Caudate	.06	.95

Note: Factor loadings for dopaminergic denervation of the six striatal VOIs revealed a division of the putamen/MA caudate head (factor 1) and caudate (factor 2), closely matching our a priori putamen and caudate division. LA = less affected hemisphere; MA = more affected hemisphere.