Earlier, I had written...
Rotation in the vertical plane would be IRRELEVANT to Patty's hand/finger motion.
Actually, after thinking about it, for a while....I realized that
rotation...itself...is irrelevant to the apparent bending of Patty's fingers.
In other words....the 'doll hand illusion'
is not even a potential/possible candidate as an alternate explanation for Patty's bending fingers.
It
NEVER was a candidate, from 'day 1'.
The reason for that is simple....the doll hand illusion creates a
false perception of the fingers in the
straight contour....not in the
curved contour.
The illusion makes curved/bent fingers falsely appear to be straight.........not the other way around.
It cannot make straight fingers appear to be curved.
AFAIK...there is no fancy trick of lighting, viewing, angling, or
hoping....that can make
straight fingers falsley appear to be
curved.
So.....since we
KNOW that...
A)
Patty's fingers are straight, in some images...with the hand seen
'edge-on'...(the straight shape cannot be the result of an illusion, since a 'false straightness' can only be created when the hand, with curved fingers, is viewed largely
'face-on', as opposed to
'edge-on')...
and...we know that...
B)
Patty's fingers are curved...in at least one image...(with
NO potential effect available, to make straight fingers
falsely appear to be curved)...
We can then
CONCLUDE.....with
100%, RELIABLE certainty....that Patty's fingers
must have moved, as she walked.
There is
no other explanation for the change in contour/shape.
