The Use of Neuromuscular Facilitation System is an eBook in Deus Ex: Human Revolution. It can be found on Tong Si Hung's desk inside The Hive nightclub. Win the conversation with Tong while he is posing as a bartender on your first visit to the Hive (do not sneak in via vent access or you will not be able to enter Tong's office) to get access to Tong’s office.
By Hugh Darrow
Excerpt from a paper in NeoNature, October 2019.
The concept of a neuromuscular facilitator module is essentially one of an enhanced system that allows a human being to exceed normal reflex delay, to literally move at "the speed of thought." Pressure signals are transmitted through bio-synthetic circuits from a web of augmentation elements to enhance dexterity, muscle control, balance and other related abilities. A core unit -- a central governor, if you will -- works in concert with a series of distributed sub-modules implanted at key nerve junctions in the user's limbs and elsewhere among the implantee's vestibular structure; these in turn co-ordinate wirelessly with a strata of bio-plastic discs located along the lines of the spine. As the neuromuscular facilitator module 'beds in' to the implantee's neural pattern and becomes a functioning part of the user's body, experience will allow them to increase electrical neuron stimuli beyond initial states, and thus raise the levels of corporeal control, sensory function, and agility to even greater heights.