The random factor of trial number is included to account for the non-independence of female association times within the repeated trials.
A mixed model analysis of variance (ANOVA) with a within-participant repeated factor of trial within bolus volume was performed to identify the impact of bolus volume on the study parameters.
Two-way ANOVA of log transformed initiation latencies with a within-subjects factor of Trial (rewarded × punished) and between-subjects factor of Lesion group revealed a significant effect of Trial (F1,8 = 21.145, P = 0.002) but no significant effects of Lesion group (F < 1) or Trial × Lesion group interaction (F < 1).
An ANOVA with the within subjects factors of Trial Block Order (1st, 2nd, 3rd), Change Type (Addition, Removal), and Change Level (–3, 0, +3 dB), and the between subjects factor of Spatial Separation (Co-located and Spatially Separated), was performed on the calculated d' values.
The scalp distributions of the three effects (see Fig. 4) were contrasted in an ANOVA incorporating factors of trial type, electrode site, and latency interval.
Data were analyzed using a mixed-design ANOVA with two within-subject factors of trial type (premise, inference) and block, and one between-subject factor (group: NO-FRAME, OLD-FRAME).
Possible differences in switch costs as a function of type of switching were evaluated with ANOVAs incorporating factors of trial type (switch/stay) and block type (source switching/task switching/double switching).
Repeated measures ANOVAs incorporating factors of trial type (no switch versus task switch) and electrode site were used to evaluate whether differences in these intervals were consistent across subjects.
Two-way ANOVA of log-transformed completion latencies with factors of Trial (rewarded/punished) and Lesion group revealed a significant effect of Trial (F1,8 = 21.145, P = 0.002), Lesion group (F2.8 = 5.813, P = 0.028) and significant Trial × Lesion group interaction (F2.8 = 5.376, P = 0.033).
Confirming that the task manipulations were associated with the expected changes in RTs, significant main effects were obtained for the factors of trial type (F 1, 42) = 60.0; p <.001), CTI (F 1, 42) = 358.5; p <.001), and valence (F 1, 42) = 4.4; p <.05).
The factor of previous trial (correct/incorrect) was added as another factor, and mean RTs were calculated per condition.
