The Skaro mesmeristor was the object of the second major phase of a particular Dalek operation on the human brain. Following the use of the schizoid accelerator — which destroyed the human ego — the mesmeristor was implanted in the brain to convert the human "into a humanoid" which would obey the Daleks without question. Jeff Stone witnessed a lecture on the proper surgical procedure regarding this device whilst on Skaro. (COMIC: City of the Daleks)
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