1. Q: Does the process of recognizing a misoriented
familiar pattern trigger a torsional eye movement
tending to reduce the misorientation?
[This is best viewed in slideshow mode (click slideShow/ViewShow).
Except for this slide and the next one, powerpoint will automatically
advance to the next slide at the appropriate time.]
[click left mouse button anywhere when you’re done reading this]
A powerpoint demonstration constructed by H. Pashler & V. S. Ramachandran, UCSD, 2/00.

2. In the next slide, you will see a black field with a white
line down the center. Fixate on the red dot in the middle
and try to keep your eye there until the slide disappears (20 sec).
In the slide that follows that, look at the black dot in the
same position you were just fixating. Now without moving
your head try reading one or the other word (California
or Ontario). As you read the word, make a mental note
of the relationship between the vertical reference line that
runs down the middle of the screen and the afterimage
generated by the adapting display.
There will be two more adapting and test displays.
[click mouse left key when ready to continue but you won’t
need to click after this.]

4. ONTARIO
CALIFORNIA

6. Eye Move?
Torsional

8. Angular Deviation
Smaller

10. Diamond or Square?

11. The End.