Table 4.

Mean (SD) of Vocabulary Knowledge, FA, intracranial volume, and age by left arcuate fasciculus volume classification

	Normal	High Volume	Low Volume
Vocabulary Knowledgea	64.70 (7.67)	58.44 (9.25)*	55.43 (8.22)*
FA	0.51 (0.07)	0.48 (0.05)	0.45 (0.06)*
Intracranial volume	1492.72 (185.58)	1538.73 (176.69)	1271.57 (112.15)**
Age	55.24 (16.55)	51.32 (22.45)	45.38 (18.17)

^aVocabulary Knowledge is reported as raw scores.

*p < 0.05;

**p < 0.01; difference from normal group.