Potentiation of phototactic suppression in Hermissenda by compound conditioning results in potentiated excitability changes in type B and A photoreceptors.
Potentiation of phototactic suppression in Hermissenda by compound conditioning results in potentiated excitability changes in type B and A photoreceptors.
复制标题
通过复合调节增强 Hermissenda 的趋光性抑制，导致 B 型和 A 型光感受器的兴奋性变化增强。
DOI：
10.1037//0735-7044.111.2.309
复制
发表时间：
1997
影响因子：
1.9
通讯作者：
Jin,I
中科院分区：
文献类型：
--
作者：
Farley,J;Jin,I
记录 Hermissenda 暴露于复合调节、光调节或几种对照处理之一的眼部感光反应。与未经训练的动物相比，受光调节的动物的 A 型光感受器产生的发电机电位更小；与对照细胞相比，来自光调节动物的 B 型光感受器的反应电位和动作电位频率更大。这些光响应变化分别伴随着 B 型和 A 型光感受器输入电阻的增加和减少。在复合条件动物的细胞中，同样的光响应变化以夸张的形式发生，但没有观察到额外的输入电阻变化。结果表明，通过复合调节增强趋光性抑制涉及促进仅由光和旋转配对产生的相同光感受器兴奋性变化。
Ocular photoreceptor responses were recorded from Hermissenda exposed to compound conditioning, light conditioning, or one of several control treatments. Type A photoreceptors from light-conditioned animals responded with smaller generator potentials than those from untrained animals; type B photoreceptors from light-conditioned animals responded with greater generator potentials and action potential frequencies than cells from controls. These photoresponse changes were accompanied by increases and decreases in the input resistances of type B and A photoreceptors, respectively. The same photoresponse changes occurred in exaggerated form in cells from compound-conditioned animals, but no additional input resistance changes were observed. The results suggest that potentiation of phototactic suppression by compound conditioning involves a facilitation of the same photoreceptor excitability changes produced by mere pairings of light and rotation.