Which neurotransmitter is primarily involved in memory and is classified as major excitatory?

Glutamate is primarily involved in memory processes and is classified as the major excitatory neurotransmitter in the brain. It plays a crucial role in synaptic plasticity, which is essential for learning and memory formation. Glutamate facilitates the communication between neurons by activating receptors like NMDA and AMPA, leading to the strengthening of synapses, a key process in encoding memories.

The significance of glutamate in memory can also be linked to its involvement in long-term potentiation (LTP), a cellular mechanism underlying memory storage. This mechanism enhances the connection between neurons, ensuring that information can be retained and recalled effectively. Overall, glutamate's role as an excitatory neurotransmitter is fundamental in processes related to learning and the formation of new memories.