Our results showedthe absence of sleep spindle in 56 cases of cerebral dis-eases, especially in acute brain damage (ABD). whichaccounted for 78.6% of the patients in this study.

• 结果表明：该波缺失常与急、慢性脑损伤，尤其急性脑病变有关，本组急性脑疾患占78.；6%25。