Figure 1.

(A) Screenshot of the final frame of a video in original and horizontally mirrored orientation. (B) Mean prediction accuracy against a right- (RH) vs. left-handed (LH) version of an otherwise identical penalty (i.e., 16 different videos) separately for corner, side and height predictions in goalkeepers (GK; ▴) and non-goalkeepers (Non-GK; ○). Symbols below the diagonal dotted blue line represent penalties where predictions were better against a right- than left-handed version (and vice versa). Red dotted lines indicate chance level for right- (vertical lines) and left-handed penalties (horizontal lines). Symbols toward the right (left) and/or above (below) these lines are indicative of above (below) chance performance against right- and left-handed penalties, respectively. (C) Mean prediction accuracy for corner, side and height predictions across all left- and right-handed penalties separately for goalkeepers (GK) and non-goalkeepers (Non-GK). Horizontal dashed red lines represent chance levels for corner (25%), side and height (both 50%) predictions. Error bars represent 95% confidence intervals associated with each mean value such that error bars not including the red lines indicate above chance performance. Values above bars are Cohen's standardized effect sizes d_z for differences in accuracy against left- vs. right-handed penalties within goalkeepers and non-goalkeepers. (D) Mean response time (±95% confidence intervals) against left- and right-handed penalties separately for goalkeepers and non-goalkeepers.