In the acupuncture group , the needling technique for benefiting qi , promoting blood circulation , regulating mind and improving intelligence was used at Shenting ( GV @ ) , Baihui ( GV @ ) , Fengchi ( GB @ ) , Wangu ( GB @ ) , Danzhong ( CV @ ) , Zhangwan ( CV @ ) , Qihai ( CV @ ) , Xuehai ( SP @ ) and Zusanli ( ST @ ) .