chapter  2
Cognitive expertise and performance in interceptive actions
ByA. MARK WILLIAMS AND JANET STARKES
Pages 24

If we watch a professional baseball batter connect in an effortless way with a 160 kph pitch, and the shortstop dive to field the powerful hit to the infield, the grace and fluidity of the players’ movements clearly belies the difficulty of the task. An inexperienced baseball player simply cannot deal with pitches that fast. A novice infielder can neither judge where the ball will be hit to, nor get to it in time. The question addressed in this chapter is what happens in the development of skill that permits athletes to seemingly overcome severe spatio-temporal constraints to perform such remarkable interceptive actions.