[visionlist] geometrically ambiguous images

Laurence Harris harris at yorku.ca
Sun Feb 12 18:48:10 GMT 2006

Dear Ben

> (1) are there any geometrical images which are TRIPLY ambiguous in the
> way that the Necker Cube is doubly ambiguous, where the transitions
> between ambiguities are obvious, regular, and spontaneous (i.e. not
> dependent upon "effort")?

the necker cube is triply ambiguous already... it could be a shape 
in, a shape out or, and this is presumably how most eyes in the world 
see it, a few lines on a page..

in fact most (all?) ambiguous figures have this third interpretation 
(which is of course the only 'correct' one) which is so obvious it 
tends to be overlooked...

Laurence Harris

Laurence R. Harris            
Dept. Psychology, York University,
Toronto,Ontario, M3J 1P3, CANADA
phone: +(416) 736-2100 x 66108
fax:   +(416) 736-5857

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