Neural synapses in the human brain are extraordinarily complex structures. Responsible for relaying information between neurons, chemical synapses govern the release of over 100 different kinds of neurotransmitters, while electrical synapses deliver information via electricity for rapid-fire reflexes.
Now, researchers in Japan have invented a simplified synapse in the form of a ”solid-state electrochemical nanodevice” that functions as a switch. The gap between these two synthetic synapses is bridged by a tiny copper wire, which changes in conductivity over time. Though at first it may seem a bit esoteric, this new device actually mimics what goes on in the construction of sensory memory, short-term memory, and long-term memory. The scientists behind this synapse are hopeful that it will lead to more life-like artificial minds, as well as treatments for the human brain.