[Objective]To observe and probe the effect that noise exposure has upon the expression of Glu positive neurons in hippocampus,in order to study the influence and mechanism that noise poses on the capability of learning and memory in juvenile rats.[Methods]Tetracosa-Wistar juvenile rats were randomly divided into noise group and control group. The noise group was exposed to 90 dB(A)noise for one month. The capability of learning and memory of juvenile rats was measured by means of Morris water maze test. An ...