Figure 2

Accuracy and reaction time at each orientation angle for both foot and hand stimuli in MA− and MA+ groups. Foot stimuli were oriented either leftward (240°/270°/300°) or rightward (60°/90°/120°) (a,c), whereas hand stimuli either upward (330°/0°/30°) or downward (150°/180°/210°) (b,d). In comparison with non-MA abusers, MA abusers reacted with lower accuracy for foot stimuli, and slower speed for either foot or hand stimuli. Furthermore, non-MA abusers but not MA abusers respond more quickly to leftward foot stimuli than rightward foot ones (c). All participants reacted more quickly to upward hand stimuli than downward hand stimuli (d). *p < 0.05, MA+ group vs. MA− group; ^#p < 0.05, leftward vs. rightward for foot stimuli, or upward vs. downward for hand stimuli.