Since, in the present study, the two composite faces were presented in sequence with a 500-ms SOA, the prioritized accumulation of LSFs in both perception and VSTM might partly explain why we found effects following global priming, but not following local priming.
First, whereas in that previous study, local priming facilitated performance and global priming was inconsequential, in our present study, the opposite was true: Global priming interfered with performance, whereas local priming was inconsequential.
Whereas this interpretation stands to reason, we should consider it with caution because, as compared with baseline, even following local priming the congruency effect tended to be larger in the priming group than in the experimental group.
If both types of processing-level priming affect sensitivity to the congruence between the two halves of the composite faces (in opposite ways), the congruency effect should be larger following global priming, relative to baseline, but smaller, relative to baseline, following local priming.
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This suggests that even after local priming, there was a tendency to process the composite faces holistically.
In conclusion, the present study allowed teasing apart the influences of global and local priming on perceptual and decisional factors that contribute to the composite-face illusion.
Although its exact function is not clearly understood, several murine studies have implicated BALT in facilitating primary immune responses via local priming of lymphocytes and in serving as a reservoir for viruses during their latency period [ 11, 12].
