Movement time (ms) for D0 and D2000 group no-mask and mask trials as a function of target index of difficulty.

<p>In addition, the top left hand corner of the figure presents regression equations and R² for each experimental condition.</p

Reaction time (RT: ms), movement time (MT: ms), time to peak acceleration (tPA: ms), time to peak velocity (tPV: ms), time to peak deceleration (tPD: ms) and resultant error (RE: mm) as a function of target index of difficulty.

<p>In addition, regression equations and R² values for each dependent variable are depicted.</p><p>Values are means. Between-participant standard deviations are presented in parentheses.</p