Re: Wagon-wheel illusion again

[Rick Stevens]

I think that Tom should go immediately out and try this again and have 
someone take some pictures.  Intro books of the future will want to 
illustrate the discovery of the Allaway Phenomenon with a picture of a 
guy cranking a salad spinner with one hand while holding an electric 
toothbrush to his chin (although I think that holding it to the forehead 
would look cooler).  If they want to save money they could use the 
picture again in the abnormal behavior section.

David Hogberg wrote:

Tom: Way to go! It's really pretty exciting to be able to nearly
(electronically) look over your shoulder as you were doing this most
convincing demo of the phenomenon.  Anyone up for supporting a movement
to call this The Allaway Phenomenon? 

DKH

David K. Hogberg, PhD
Professor of Psychology, Emeritus
Albion College, Albion MI 49224
[EMAIL PROTECTED]                     home phone: 517/629-4834
 

[EMAIL PROTECTED] 04/19/04 17:01 PM >>>
       

To all, but especially Stephen, Doug and David:

   I do believe I've got it!  The demonstration experiment involved, in
my case, a small kitchen device similar to a salad spinner, containing a
rotating perforated plastic tub.  When spun under a flourescent light,
it showed a clear "wagon wheel effect" (i.e., the temporary appearance
and reverse rotation of the perforations during deceleration).  I took
it outside, and there was no effect to be observed.  The crucial test:
with my only source being daylight, I applied to my skull a vibratory
stimulus, in the form of the business end of an electric toothbrush
(minus the brush part) pressed against my chin.  Violets!  There was the
wagon wheel effect!
Q.E.D.
Let's hear it for empiricism.

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--
_ Rick Stevens 
_ Psychology Department
_ University of Louisiana at Monroe
_ [EMAIL PROTECTED]

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