This paper had discussed the relationship and its clinical significance between such behavior and brain white matter rarefaction, Binswanger's disease, vascular dementia, TIA and arterial sclerosis cerebral infarction. 本文主要讨论它与脑白质疏松、binswanger氏病、血管性痴呆、短暂性脑缺血发作及动脉硬化性脑梗死的关系及临床意义。