Passage: The first attempt to establish a set of diagnostic criteria was also due to Charcot in 1868. He published what now is known as the "Charcot Triad", consisting in nystagmus, intention tremor, and telegraphic speech (scanning speech) Charcot also observed cognition changes, describing his patients as having a "marked enfeeblement of the memory" and "conceptions that formed slowly".Diagnosis was based on Charcot triad and clinical observation until Schumacher made the first attempt to standardize criteria in 1965 by introducing some fundamental requirements: Dissemination of the lesions in time (DIT) and space (DIS), and that "signs and symptoms cannot be explained better by another disease process". Both requirements were later inherited by Poser criteria and McDonald criteria, whose 2010 version is currently in use.

Question: who inherited both requirements?
Poser criteria and McDonald criteria