There are many reports from quite a number of witnesses who say that she has exhibited behavior that is contextually appropriate and not merely involuntary reflex. The judge in this case is legally blind and cannot even read briefs; they must be read to him by his clerks.
We'll have to agree to disagree in this matter. I know a little about two of those witnesses and they were discredited.
As an aside, this is an interesting article about how highly the Schindlers praised Michael for years, until money became an issue.
http://www.sptimes.com/2003/11/23/Tampabay/Schiavo_clash_is_root.shtml