Excitatory interneurons are a type of neuron that primarily release neurotransmitters, such as glutamate, which promote the firing of other neurons. They play a crucial role in enhancing communication within neural circuits, facilitating the transmission of signals in the brain and spinal cord. These interneurons help to modulate and synchronize the activity of excitatory and inhibitory neurons, contributing to various brain functions. These interneurons are essential for processes like learning, memory, and motor control. By increasing the excitability of nearby neurons, they help to create a balanced network that supports efficient information processing. Dysfunction in excitatory interneurons can lead to neurological disorders, highlighting their importance in maintaining healthy brain function.