Artists who scored higher in divergent thinking in the study by Edward Necka and Teresa Hlawacz also scored lower in emotional reactivity.
This should not be surprising, considering the ability to do well on a decontextualized, timed test requires a cool head. A certain objectivity comes into play. A certain distance.
That sense of detachment allows more ideas to flow. More ideas allows more detachment to grow. A virtuous circle of ideation.