Of the spectator usually relies on misdirection the

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of the spectator) usually relies on misdirection (the diversion of attention away from its method) so that the audience does not notice how it was produced.” Misdirection Physical misdirection can be created by controlling: Exogenous attentional capture through novelty, high contrast, salience “big moves mask littler moves” Social cues such as gaze direction and body language Endogenous attention through asking subjects to attend to one thing while changing another. Timing e.g. moments of laughter Misdirection Psychological misdirection can be controlled by : Doing things that are highly probable to mask an action (e.g., hiding something in the mouth when pushing up glasses). Gives a mundane interpretation of an “intention” to an action that hides a “method” Priming and repetition produces expectations (i.e., generating predictions in the “vanishing ball”). Inferred motion (apparent motion) Suspense (preventing predictability when they would be violated) Misdirection Penn and Teller version
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5/6/2013 3 Penn and Teller explain cups and balls Used eye-tracking to measure gaze displacement Misdirection techniques All techniques of misdirection were strong in opaque cups, but less effective in clear cups
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  • Winter '07
  • D.Whitney
  • ball, Penn & Teller

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