The HRP retrograde tracing technique combined with immunohistochemical metho d for somatostatin (SS) was used to detect the chemical properties of neurons in lateral geniculate nucleus (LGN).

• 本文采用HRP逆行示踪的方法，在猫视皮质的17区多点微量注射30%25HRP，逆行标记外侧膝状体核(LGN)至视皮质的中继神经元，继用免疫金银法作生长抑素(SS)免疫组织化学，试图双标记LGN的中继神经元。