The Aha! Glow: Insight Experiences Bias Judgements of Idea Quality in Divergent Contexts.

One of the defining characteristics of the Aha! experience is the profound sense of certainty with which it arrives-you don't just know, you know you know. A large body of research suggests this confidence is generally warranted; ideas that arrive with a feeling of insight are more likely to be accurate than those that do not. However, the insight-accuracy relationship has been examined almost exclusively in convergent thinking tasks, leaving the diagnostic value of insights in divergent contexts uncertain. The present research tests whether this relationship differs between problem-solving contexts. Study 1 re-analyses daily diary data from professional writers and physicists, used as proxies for divergent and convergent domains. Writers initially rated their Aha! ideas as highly creative but downgraded them at 6-month follow-up; physicists' Aha! ideas, by contrast, retained or gained value over time. Study 2 used a within-subjects design with laboratory measures of convergent and divergent thinking. Insight intensity predicted accuracy on both tasks but predicted subjective creativity ratings far more strongly than objective ones on the divergent task, producing a systematic bias we term the Aha! glow. Implications are discussed, including a proposed adaptive, motivational function for this phenomenon.