During embryonic development , the proper ratio of excitatory and inhibitory neurons is established for optimal brain function .
在胚胎发育阶段，兴奋和抑制性神经元的适当比例确立以优化大脑功能。
First , the scientists found abnormal proportions of excitatory and inhibitory neurons in the brains of the embryonic ds mice , with a much higher quantity of the inhibitory cells .
The results suggest that cort preferentially injure the primary cultured hippocampal neurons and the neurotoxic effect of cort be closely related to promoting the release of excitatory amino acids .
They can mediate either excitatory or inhibitory actions in postsynaptic cells and produce electrical changes in the postsynaptic cell that last from milliseconds to many minutes .
We show that neuronal persistent activity and tuning curves of delay-period activity ( memory fields ) can be generated by an excitatory feedback circuit and recurrent synaptic inhibition .
