Elite archers are sometimes afflicted with something called target panic.
Target panic, as the condition is known, causes crack shots to suddenly lose control of their bows and their composure. Mysteriously, sufferers start releasing the bow the instant they see the target, sabotaging any chance of a gold-medal shot. Others freeze up and cannot release at all. Target panic is akin to the yips in baseball and golf, when accomplished athletes can no longer make a simple throw to first base or stroke an easy putt.
Some researchers have asserted that there are two types of yips, neurological (when groups of neurons become worn from overuse) and psychological.