Neuropsychological test Rt. BG lesion Lt. BG lesion p value K-MMSE 25.7 ± 3.5 24.4 ± 5.9 1 Digit span 8.0 ± 4.4 11.4 ± 8.4 0.73 Visual span 7.3 ± 1.2 5.0 ± 8.8 0.286 K-HVLT 17.7 ± 4.9 13.2 ± 4.5 0.286 RFT 11.0 ± 9.5 10.7 ± 0.4 1 TMT-A 53.0 ± 45.6 93.3 ± 29.1 0.393

Table 1: Neuropsychological Test Scores in right and left BG lesion Patients. K-MMSE, Korean version of Mini-mental Status Examination; K-HVLT, Korean version of Hopkins Verbal Learning Test; RFT, Rey-Osterrieth Figure Test; TMT-A, Trail Making Test type A; Lt.: Left; Rt.: Right; Mann-Whitney U test * p < 0.05