Executive functions and divergent thinking in young adults: Evidence from individual differences and cognitive training studies

Abstract

The interplay between executive functions and divergent thinking remains a debated question in creativity research. To address this issue, two studies were conducted from different perspectives. The first study explored which of the executive functioning components—namely working memory, inhibition, and shifting—predicted divergent thinking. A sample of 203 college students performed a battery of tasks assessing divergent thinking, executive functions, and related cognitive variables (fluid intelligence, verbal fluency, and processing speed). After statistically controlling for these variables, only working memory emerged as a significant predictor of creativity scores in the Alternative Uses Task, while inhibition and shifting did not. In the second study, a cognitive training approach was employed to further elucidate the potential efficacy of working memory training in fostering divergent thinking. The results found that the experimental group, which received a 15-day dual n-back task training, demonstrated greater improvements in the creativity score of the Alternative Uses Task compared to the control group, suggesting a transfer effect from working memory training to divergent thinking. This research underscores the plasticity of divergent thinking and highlights a plausible avenue for enhancing creativity through targeted cognitive training.