  Colloids submitted to electrical stimuli exhibit a reconfiguration that could
be used to store information and, potentially, compute. We investigated
learnign, memorization, and time and stimulation's voltage dependence of
conductive network formation in a colloidal suspension of ZnO nanoparticles in
DMSO. Relations between critical resistance and stimulation time were
reconstructed. The critical voltage, i.e. the stimulation voltage necessary for
dropping the resistance, was shown to decrease in response to an increase in
stimulation time.
