The cumbersome medical equipment precluded any trials with live pitching. Instead, Muraskin and Sherwin used physics equations to create computer simulations of the trajectories of three types of pitches: fastballs, curveballs, and sliders. Their test subjects, wearing video goggles and EEG caps and placed inside an fMRI scanner, saw a gray screen with a green ball coming at them in the motion of one of the three pitches. The fMRI would show where things were happening in the brain as the pitche