The strength of chosen (red) and unchosen (blue) representations was averaged in 20 ms bins, stepped forward by 5 ms and used to predict choice times. (a) Each pair of picture values was analyzed separately with multiple regressions, and β coefficients are plotted. Time bins significant at p ≤ 0.05 (uncorrected) are highlighted. Most comparisons show a trend toward negative correlations between choice times and the strength of chosen representations and positive correlations between choice times and unchosen representations. (b) The six curves in A were aggregated to compute statistical significance. The plot shows the mean beta values (fill = ± SEM; n = 6). Significance was calculated by aggregating the mean squared error (MSE) from all trials. The value √(MSE/n) is the standard error of the mean beta coefficient, and was used to compute a t-statistic and its 2-sided significance level. Shaded blocks in the plot show regions where the aggregate beta for chosen (red) or unchosen (blue) strength was significantly different from zero. (p ≤ 0.05 × 6 consecutive time bins to correct for multiple comparisons). For this analysis, trials with very short choice times (<170 ms) were excluded to reduce the positive skew in the distributions when power was reduced (n = 2795 trials).