Both groups received mild but increasingly insistent electrical shocks and were told to signal when the pain grew too great to bear.
Throughout the debate, Russia has been increasingly insistent that it be treated by its former enemies and its neighbors as the region's great power.
That increasingly insistent question from out in the country would change everything.
Following his return, the administration of Harvard grew increasingly insistent that he reside nearer to the institution.
Instead, I was getting an increasingly insistent yen for takeout.
Similarly, individual donors are becoming increasingly insistent on seeing tangible results and knowing how their money is spent.
But accounts of errors have become increasingly insistent.
My own first husband, a man of otherwise noble character, eventually, after marrying increasingly insistent wives, got the point.
Yet the public also seems increasingly insistent on its need to know about public figures' private behavior.
Russia has been increasingly insistent that it should play a role in a Bosnian settlement.