Ah, now I know! Serves me right for not reading the original paper before criticizing their experimental method. Thanks for the technical term. I see that the s

Ah, now I know! Serves me right for not reading the original paper before criticizing their experimental method. Thanks for the technical term. I see that the sham stimulation can still incorporate some ramp-up and ramp-down current, but I'll have to dig deeper to understand how those brief currents (or lack thereof) affect the quality of the control and the specifics of this experiment.