Rather than mimic synapses, Boahen's computational model emulates dendrites, where a neuron receives signals from other cells and which branch out to allow a single neuron to be connected with many others. The computational model is designed so that the dendrite responds only if signals are received from neurons in a precise sequence, which means each dendrite could encode data using higher base systems, based on the number of connections and the length of the signal sequences.
Boahen said a 1.5-micrometer-long ferroelectric field-effect transistor, comprised of a string of ferroelectric capacitors, with five gates could mimic a 15-micrometer-long stretch of dendrite with five synapses.
From IEEE Spectrum
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