Figure 1
Repetition priming induces a choice preference associated with a lower response time in the Unspecified Task group but not in the Important Task group. (A) Experimental Series #1 design. The order in which the Experiment #1 and Experiment #2 appear, as well as the Control Trial position (Exp#1) and the Control Trial #1 or #2 (Exp#2), were all randomised for each participant. (B) Experimental design for Experiment #1: each experimental trial consists of two stages: a priming acquisition and a testing phase. The first one consists of faces (presented 12, 6 or 1 times; 200 ms face presentation) randomly presented, interspersed by a mask. The second one, in the election of only one face and the confidence of the choice. (C) Choice Preference as the proportion of the chosen face over a total of 3 trials. (D) Response Time separated by the chosen face frequency (i) or by group (ii). (E) Response Time, desegregated by group, of Control trials. (F) Probability Distribution of reported confidence. Areas show the density probability distribution; yellow and grey lines show the cumulative probability. Differences in the cumulative probabilities were analysed by the Kolmogorov–Smirnov (KS) Test: the arrow revealed the highest distance between distributions. Significances were also analysed by bootstrapping. Bars shown mean ± SEM. The grey dashed line represents the expected proportion for random choice (null hypothesis). *p < 0.05, **p < 0.01.
