72

 Using the atlas of Damasio and Damasio (1989), lesions

 from the patients' CT scans were projected onto templates by

 a board certified neurologist (K.H.), who was unaware of

 patients' performance. Based on their scans, the

 neurologist divided the stroke patients into anterior,

 posterior, and mixed groups. Lesions were termed

 "posterior" if located behind the central fissure or within

 the posterior temporal lobe. Lesions located in front of

 the central sulcus or involving the anterior temporal lobe

 were considered "anterior." Lesions were considered

 "primarily anterior" if they also involved the primary

 sensory areas or Heschl's gyrus and "primarily posterior" if

 they involved the primary motor areas. Lesions involving

 both anterior and posterior regions, and/or regions between

 them were considered "mixed."

 All of the scans were then ranked from largest to

smallest lesion by the neurologist. The rankings were

analyzed using an independent samples Wilcoxon Test of

Ranked Sums to explore the group differences in size of

lesion. No significant differences was found between the

RHD and LHD groups [W = 141.0, P = 0.6075].

 A summary of the neurological information for each

subject is provided in separate tables for each group. See

Tables B-5 and B-6 in Appendix B.