It is now widely accepted that glutamate is the major excitatory neurotrans mitter in the mammalian central nervous system. The main criteria for accept ing a molecule as a chemical transmitter appear to be fulfilled at several synapses: Glutamate mimics the action of the natural transmitter in the post synaptic neuron (CURTIS et al. 1959), glutamate is present in presynaptic ele ments (OTTERSEN and STORM-MATHISEN 1984), and glutamate is released from central neurons in an activity-dependent manner (BRADFORD 1970). The postsynaptic receptors that mediate the effects of glutamate are markedly...
It is now widely accepted that glutamate is the major excitatory neurotrans mitter in the mammalian central nervous system. The main criteria for acce...