ISSN : 1226-9654
The aim of this study was to investigate how emotional valence effect on global/local processing was influenced by individual differences in working memory capacity (WMC). Each trial of global/local visual processing task consisted of an emotional stimulus (positive/neutral/negative) followed by an hierarchical global/local stimulus. The reaction time data showed that participants with high WMC were overall faster than those with low WMC. The analysis of interference effect in high WMC demonstrated that the interference by an irrelevant global-level stimulus on local processing was larger under positive stimuli than under negative or neutral stimuli. But, in high WMC, the interference by local-level stimuli on global processing showed no emotional valence effect. On the other hand, low WMC showed larger interference effect under negative stimuli than under neutral or positive stimuli on both global and local processing. The results suggest that high WMC showed global dominance especially under positive stimuli, but low WMC showed more difficulty in controlling interference under negative stimuli than positive or neutral stimuli.
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