Cognitive Card Tricks

Discuss your favorite close-up tricks and methods.

Postby mrnovember » 07/04/11 11:38 AM

Hi all

After reading Tom Stone's wonderful article on 'Cognitive Conjuring' in Genii recently, I am interested in finding any other instances in which 'change blindness' has been practically applied to card effects. Justin Higham has a great trick named 'Cognitive Transposition' which relies on similar ideas in his 'Dexterity Manual'.

Does anyone know of any other examples where the ideas of cognitive psychology are appiled to card magic?


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Postby Jonathan Townsend » 10/24/11 10:22 AM

It's a visual percpetion issue link to summary of original works below. ... /i0382.pdf
and a summary of gaze-attention relationship here:

From the above cited article - this appears useful: "According to Hoffman,[22] current consensus is that visual attention is always slightly (100 to 250 ms) ahead of the eye. But as soon as attention moves to a new position, the eyes will want to follow." - a formal validation of "attention leading" as method of attention managment (and misdirection).

for some amazing effects that might be adapted for use by way of conjuring methods rather then the YouTube forced focus approach taken by the pioneer in the field.
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Postby Jonathan Townsend » 10/24/11 11:51 AM

One more article for those who like to read about 'the work' as done and ... I hope ... inspire some fun tricks to do in the working world

Kindly notice the studies go back to the 1970s and the basic research started over a century ago. I was informed of the 'change stuff while they are not looking' findings during a physics of science fiction course at City College of NY in 1980 - along with some other related findings. Great for one-on-one where you can use the dark of the pupil to direct computer programs to act but not quite so well suited to groups much less groups where diverse dispositions and attention spans make discrepancies of that sort a vulnerability rather than a sure-fire-method. :)
Jonathan Townsend
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