Selective neuronal damage and Wisconsin Card Sorting Test performance in atherosclerotic occlusive disease of the major cerebral artery Hiroshi Yamauchi1, Ryuichi Nishii2, Tatsuya Higashi2, Shinya Kagawa2, Hidenao Fukuyama11Human Brain Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan2Research Institute, Shiga Medical Center, Moriyama, JapanCorrespondence to Dr Hiroshi Ya