Journal
CREATIVITY RESEARCH JOURNAL
Volume -, Issue -, Pages -Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/10400419.2023.2289757
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Chance favors the prepared mind, said Louis Pasteur. In this study, the researchers investigated the brain's receptivity to integrate new information and the experience of creative insights known as Aha! moments. They hypothesized that the transient oscillatory states of the brain would characterize its preparedness for these insights. Through a real-time brain-state-dependent cognitive stimulation experiment, they found that participants were more successful in utilizing clues and experienced more Aha responses when clues were presented at the up-regulated state of right temporal alpha oscillation. Additionally, they observed a negative correlation between the coupling of alpha oscillation phase and gamma oscillation power and the frequency of Aha moments. These findings highlight the role of brain oscillations in the Aha experience and provide insights into the neural mechanism underlying the brain's receptivity to integrate semantic information.
Chance favors the prepared mind, said Louis Pasteur. Sometimes, significant breakthroughs occur when we creatively integrate new information, leading to a creative insight or an Aha! moment, while at other times when we fail to use a clue, we remain stuck in our habitual thinking patterns. In this study, we hypothesized that the brain's transient oscillatory states would characterize its receptivity or preparedness for such insights. We conducted a real-time brain-state-dependent cognitive stimulation experiment during insightful problem-solving. We showed that participants were more successful in utilizing clues and experienced more Aha responses when these clues were presented at the spontaneously up-regulated state of right temporal alpha oscillation, as opposed to the down-regulated state. Furthermore, we observed an inverse correlation between the coupling of alpha oscillation phase and gamma oscillation power and the frequency of insight. These results shed light on the neural mechanism underpinning the brain's receptivity to integrate upcoming semantic information, emphasizing the pivotal role of dynamical brain oscillations in the Aha! experience. In this study, we focused on finding the brain's receptive state during insightful problem solving - a state where new (semantic) information is successfully integrated to find creative solutions. We predicted that the brain's naturally fluctuating neuronal oscillations, specifically those occurring in the right temporal region, might indicate this receptivity. We recruited healthy volunteers and presented them with word association problems, and provided hints contingent on the brain's spontaneous up (or down) state of the right temporal alpha oscillation (8-12 Hz) on a trial-by-trial basis. We found that participants solved more problems and reported more insights or Aha! moments when hints were presented in the spontaneously up-regulated alpha states. In particular, this effect was specific to alpha and not beta oscillations (16-22 Hz). We also revealed that a phase-amplitude cross-frequency coupling between alpha phase and gamma (50-133 Hz) power was negatively correlated with the frequency of Aha!. This study has established a clear association between right temporal alpha oscillation and the brain's receptivity and Aha! experience through our innovative approach of real-time brain-state-dependent cognitive stimulation. Importantly, our approach is noninvasive, free from adverse side effects, and does not rely on performance feedback, making it convenient, affordable, and readily applicable beyond the laboratory setting.
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