学习和记忆是脑的高级功能,二者是相互联系的复杂的神经过程。大量的实验研究表明:神经系统结构和功能的可塑性是其基本的神经机制。1973年B liss等在离体海马脑片的电生理研究中发现,某种神经元受到一定刺激后其兴奋性突触后电位(EPSP)明显增强,这种现象会长时程延迟,某些动物 Learning and memory are advanced features of the brain, and the two are interconnected complex neurological processes. A large number of experimental studies have shown that the plasticity of the structure and function of the nervous system is its basic neural mechanism. In 1973, Biss et al. Found that in an electrophysiological study of isolated hippocampal slices, the excitatory postsynaptic potential (EPSP) of a certain type of neuron was significantly increased after certain stimulation. This phenomenon may be delayed for a long time and some animal