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Originally Posted by avandonk
A very doubtful bit of work from someone who does not know what he is doing. I can get twenty Collingwood supporters to say they only see the world in black and white.
How do you explain the periodical reversing of all these 'illusions'? Check out the rotating spheres where there is no illumination or depth cue. Jack is a member of the Royal Society or FRS so he is no lightweight.
By the way the period between reversals is observer dependant. It is not about left/right hemisphere dominace but an oscillation where each is dominant in turn. This can be modulated by external magnetic fields!
Bert
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Bert, fortunately my life doesn't seem to be immediately threatened by adopting one view over the other, so I'll choose to stand in a 'don't care' mode.
If pressed, as it stands at the moment, I think I'd be likely to go with your convincing arguments in favour of Jack Pettigrew's explanation .. but only if pressed.
But notice how easy it is to take sides, eh ?
And my original point was that:
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For me, excluding any area of legitimate science, only results in not being able to see through some of the illusions.
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Both authors speak of several different illusions and as it comes down to the
causes behind how we perceive visual messages, I can see a lot of very good reasons to remain in "don't care", and "soak it all up", modes.
So, keeping true to that statement, I'll attempt to keep both perspectives in mind, and run like hell next time I see a rotating object !
Cheers