The primary form of communication between neurons is through neurotransmitters. When a neuron is activated, it releases these chemical messengers into the synapse—the gap between neurons. Neurotransmitters bind to receptors on the receiving neuron, facilitating the transmission of signals across synapses. This process is essential for various brain functions, including mood regulation, cognition, and motor control. Proper functioning of neurotransmitter systems is vital for overall neural communication and is a focus of research in understanding neurological disorders.