Perhaps the fact the the brain was disconnected from the body was a major factor in why no signs of consciousness were recorded. Consciousness may be the byproduct of a living body sending signals to a living brain.
> Consciousness may be the byproduct of a living body sending signals to a living brain.
Might be, but unlikely. Both our medical and legal (executions) experience shows that most parts of the body can be removed or paralyzed without impacting consciousness. It really seems like the obvious model - that the brain alone is the center of consciousness - is the correct one.