Building Brain-Like Synapses

And related to the last post, some work is progressing on doing functional mimicry:

Engineers design a device that operates like a brain synapse
Ion-based technology may enable energy-efficient simulations of the brain’s learning process, for neural network AI systems.   By David L. Chandler | MIT News Office

Teams around the world are building ever more sophisticated artificial intelligence systems of a type called neural networks, designed in some ways to mimic the wiring of the brain, for carrying out tasks such as computer vision and natural language processing. ...."