The learning effect of the neuron-like conducting polymer is considered to
produce to the network device with the shape and functions of the neuron. T
he conducting polymer gel has been investigated to add the learning effect
on the path between the neuron-like conducting polymers. AC and DC voltage
was applied to the conducting polymer gel as pretreatment during the liquid
-phase doping. After pretreatment the ethanol was dropped out the path and
the change of the current was measured. It was found that AC voltage works
as learning effect.