The pictures subtended approximately 10° by 8° of visual angle in the aligned condition and were displayed on a computer screen using E-Prime 1.1.
RT costs were calculated by subtracting the raw RT for the misaligned condition from the RT for the aligned condition.
As is shown in Fig. 4a, in the aligned condition, the processing level of Navon letters influenced the participants' responses to faces, with the lowest sensitivity in the global incongruent condition.
These analyses showed that the congruency × priming level interaction was significant for the aligned condition, F 1, 23) = 6.7, MSE = 0.001, p < .025, partial η2 = .2, but not for the misaligned condition, F (1, 23) < 1.
Sensitivity to the congruency of the composite faces in a pair was evident only in the aligned condition, where the detrimental effect of incongruence on accuracy was enhanced by priming global perception and unaffected by priming local perception.
A post hoc exploration of the congruency × priming level interaction for the aligned composite faces revealed that the congruency effect in the aligned condition was significant both in the global-priming condition (.98 vs..92), t(23) = 5.20, p < .001, and in the local-priming condition (.98 vs..95), t(23) = 5.20, p < .0025.0025
Finally, notwithstanding the absence of a second-order interaction, since the congruency effect on A z was significant only in the aligned condition, we compared the congruency effect on the criterion in the global and local conditions, focusing only on aligned composites.
The congruency × alignment interaction was significant, F 1, 23) = 8.0 MSE = 0.02, p < .01, partial η = .3, indicating that the congruency effect was significant in the aligned condition, t(23) = 4.19, p < .001, but not in the misaligned condition, t(23) = 1.24, p = .23.23
The alignment × congruency interaction was also significant, F 1, 23) = 40.3, MSE = 0.001, p < .001, partial η2 = .6, indicating that congruency affected sensitivity only in the aligned condition, t(23) = 5.58, p < .001, yet there was no trend for congruency effect in the misaligned condition, t(23) < 1.
We compared movements in which the frames of reference were aligned (unperturbed condition) with movements performed under different combinations of visual/kinesthetic dynamic perturbations.
