Abstract
In this study, we examined the influence of verbal switching tasks on the successive color-word switching task. The three verbal switching conditions were: 1) to read digits randomly in either English or Japanese, 2) to read digits in English, 3) to do so in Japanese. These verbal switching tasks were followed by the color-word switching task, in which participants were asked to read either Kanji words or to name their colors. These combined task blocks were repeated alternatively. The participants were preselected with a questionnaire on subjective well-being (SWB). There were 26 high SWBs and 25 low SWBs. Verbal switching was found to dump the performance of the color-word switching task relative to English only and Japanese only conditions. This interference was especially marked for the low SWB group.