This was a continuation on the uncanny valley. This time we looked at movement and how that fits into the sliding scale of uncanny-ness. Movement is one of the codes that go with character, ie how a character moves dictates how the audience relate to it and what they expect out of it.
On the iconic end of the scale, naturalistic movement lies, things that do that would be animals and humans. On the arbitrary side you have random movement and stillness. Examples would be an android perhaps malfunctioning and making random movements, and obviously death.
As with everything to do with the uncanny valley, it is diffucult to overcome. Modern androids are still firmly in the uncanny valley because even though they move more natually than ever before,  they lack the biological twitches and movements that animals have.

Therefore in order to cross the uncanny valley on the movement axis, there must be some sort of indexical movement in the creature or the audience will always find it creepy and disturbing.