- May 17, 2012
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I disagree. I don't believe a rise ball 'magically rises' but, sit on a bucket and tell me if gravity 'drops' the ball into your shins.
Allow me to rephrase.
It's clear that a rise ball doesn't rise. The reason that batters perceive it to rise is that they have expectations (experience) on how gravity affects a thrown object (the ball).
Every pitch has an arc to it (fastball, rise ball, and drop ball).
"The perceptual illusions of a rise ball are caused by the batter tracking the ball over the first part of its trajectory with smooth pursuit eye movements, making a saccadic eye movement to a predicted point ahead of the ball. At the end of the ball's flight, resuming smooth pursuit tracking.
The batter is misestimating the acceleration or speed of the pitch."
It's merely an optical illusion and an effective one if you haven't seen it before (experience).