Exact(6)
We conducted separate two-way ANOVA for the irrelevant shape and the irrelevant orientation trials.
Planned contrast showed that there was no difference between irrelevant change and no change, F 1,11) = 0.061, p = 0.809, indicating that the irrelevant orientation change did not evoke N270.
These results strongly suggested that the irrelevant orientation of Landolt-C could not be stored in VWM automatically; otherwise, the no-difference result pattern between 2 and 4 objects should be observed even when color as the target feature.
Identical stimuli were used for all three experimental conditions: a task irrelevant spatial offset was presented in the orientation discrimination condition, and similarly, an irrelevant orientation cue was presented in the interpolation condition.
Planned contrast showed that there was no difference between irrelevant change and no change, F 1,13) = 0.191, p = 0.670, suggesting that the irrelevant orientation change did not elicit N270.
Therefore, the consistent behavioral and ERP results between Experiment 2a and 2b suggest that the non-automatic extraction of irrelevant orientation is not due to the information decay of the gap orientation from VWM. Besides, The absence of automatic extraction in Experiment 2a and 2b may be alternatively related to the unbalanced change signal between the two types of information.
Similar(2)
The contact area of a spherical NP is irrelevant to its orientation, and the binding area remains constant within interacting distance.
Consistent with Experiment 2a, Figure 4C showed that no N270 was evoked under the irrelevant change of orientation.
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