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在含有孤束核中央亚核（ＮＴＳｃ）疑核神经元密集区（ＡＭＢｃ）及孤束─疑核传导束的脑片，注射生长抑素（ＳＳＴ）于ＡＭＢｃ区，对Ｎ—ｍｅｔｈｙｌ—Ｄ－ａｓｐａｒｔａｔｅ（ＮＭＤＡ）引起的疑核神经元膜电位去极化有易化作用，而注射ｃｙｓｔｅａｍｉｎｅ耗竭内源性ＳＳＴ后，ＮＭＤＡ的去极化作用减弱；ＮＭＤＡ受体阻断剂Ｄ，Ｌ—２—ａｍｉｎｏ—７一ｐｂｏｓｐｈｏ－ｎｏｈｅｐｔａｎｏｉｃａｃｉｄ（ＡＰ─７）使疑核神经元兴奋性突触后电位（ＥＰＳＰ）幅度降低，而ＳＳＴ可翻转ＡＰ—７的抑制效应；对ｎｏｎ—ＮＭＤＡ介导的疑核神经元膜去极化，ｃｙｓｔｅａｍｉｎｅ亦对其有明显抑制作用；甘氨酸（ｇｌｙｃｉｎｅ）可阻断ＳＳＴ易化疑核神经元的去极化作用。这些结果表明，ＳＳＴ对疑核神经元兴富性氨基酸（ＥＡＡ）受体介导的兴奋起重要的调节作用。
In the brain slices containing nucleus of nucleus tractus solitarius central nucleus (NTSc) suspected nucleus accumbens (AMBc) and nucleus tractus solitarius, the somatostatin (SST) Aspartate (NMDA) induced depolarization of neurons in the nucleus facilitated the depolarization of NMDA induced by cysteamine depletion of endogenous SST. NMDA receptor blockers D, L-2- amino-7-pbospho-noheptanoicacid (AP-7) reduced the magnitude of excitatory postsynaptic potential (EPSP) in suspected neurons, while SST reversed the inhibitory effect of AP-7. Membrane depolarization, cysteamine also significantly inhibited; glycine (glycine) can block SST susceptible to depolarization of nuclear neurons. These results indicate that SST plays an important regulatory role in the excitability mediated by the erythroid neuron-rich amino acid (EAA) receptor.