When an electrical signal arrives at the presynaptic terminal, neurotransmitters are released from vesicles into the gap between neurons. The neurotransmitters then trigger an electrical signal in ...

Using eMAP researchers labeled protein components on both the presynaptic side (bassoon) and post-synaptic side (PSD-95) of an excitatory synapse in a mouse. Disclaimer: AAAS and EurekAlert!