Fig. 4: Response of the post-synaptic current with various stimuli.
From: Bio-inspired flexible artificial synapses for pain perception and nerve injuries
Plasticity characteristics of the artificial synapse stimulated by 100 consecutive pulses with an amplitude of 1 V and pulse widths of 5 ms, 10 ms, and 30 ms in a–c, respectively. Enhancement in synaptic potentiation was observed with the increasing pulse width of the stimuli, which corresponds to the increase of pain-signal with the increase of external stimuli. d A saturation and even inhibition in the synaptic plasticity depending on the pulse width were obtained when the stimulation voltage increased to 3 V.
