By employing anterograde and retrograde HRP methods(TMB?ST method) the connections between the central gray of midbrain ( CG ) and the forebrtin were studied in 22 Sprague-Dawley rats weighing about 140g.

• 在22只体重140g左右的SD大鼠,用HRP逆行和顺行追踪方法(TMB-ST法成色),研究了中脑中央灰质(CG)与前脑结构的联系。