Used in neuroscience research to study NMDA receptor function, which plays a key role in synaptic plasticity, learning, and memory. Acts as an agonist at the NMDA receptor, helping scientists investigate excitatory neurotransmission and neurotoxicity mechanisms. Also explored for potential cognitive enhancement and neuroprotective strategies, though primarily limited to experimental models. Not used clinically due to its potent excitatory effects and risk of neuronal damage at high concentrations.