The associative theory of creativity has long held that creative thinking involves connecting remote concepts in semantic memory. Network science tools have recently been applied to map the organization of concepts in semantic memory, and to study the link between semantic memory and creativity. Yet such work has largely overlooked the domain of convergent thinking, despite the theoretical importance of semantic memory networks for facilitating associative processes relevant for convergent problem solving (e.g., spreading activation). Convergent thinking problems, such as the Compound Remote Associates (CRA) test, can be solved with insight (the sudden aha experience) or analysis (deliberately and incrementally working towards the solution). In a sample of 477 participants, we adopted network science methods to compare semantic memory structure across two grouping variables: 1) convergent thinking ability (i.e., CRA accuracy), and 2) the self-reported tendency to solve problems with insight or analysis. Semantic memory networks were constructed from a semantic fluency task, and problem solving style (insight or analysis) was determined from judgments provided during solving of CRAs. We found that, compared to the low-convergent thinking group, the high-convergent thinking group exhibited a more flexible and interconnected semantic network-with short paths and many connections between concepts. Moreover, participants who primarily solved problems with insight (compared to analysis) showed shorter average path distances between concepts, even after controlling for accuracy. Our results extend the literature on semantic memory and creativity, and suggest that the organization of semantic memory plays a key role in convergent thinking, including insight problem solving.

Openness to Experience is most strongly related to aspects of high-level cognition, such as creativity. Yet, the role of cognitive capacities in Openness is still far from understood. We examine how individuals search their memory predicts levels of Openness. Participants (N = 163) had one minute to generate synonyms to the word hot, which operationalizes mental navigation through a multidimensional representation of the mental lexicon - a cognitive multiplex network. We find high accuracy in low- and high- Openness group classification, and good prediction of individual differences in Openness. These results support the use of computational cognitive modelling for the study of personality traits. Further, our results suggest that people high in Openness engage in a distinct style of cognitive search.

Creativity has long been thought to involve associative processes in memory: connecting concepts to form ideas, inventions, and artworks. However, associa-tive thinking has been difficult to study due to limitations in modeling memory structure and retrieval processes. Recent advances in computational models of semantic memory allow researchers to examine how people navigate a se-mantic space of concepts when forming associations, revealing key search strat-egies associated with creativity. Here, we synthesize cognitive, computational, and neuroscience research on creativity and associative thinking. This Review highlights distinctions between free-and goal-directed association, illustrates the role of associative thinking in the arts, and links associative thinking to brain systems supporting both semantic and episodic memory - offering a new perspective on a longstanding creativity theory.

Dual process theories of creativity suggest that creative thought is supported by both a generation phase, where unconstrained ideas are generated and combined in novel ways, and an evaluation phase, where those ideas are filtered for usefulness in context. Neurocognitively, both the default mode network (DMN) and the executive control network (ECN) have been implicated in generation and evaluation, respectively. Importantly, generating and evaluating ideas implies that the same information, reflected in patterns of neural activity, must be present in both phases, suggesting that information should be 'reinstated' (i.e. multidimensional patterns must reappear) within and/or between network nodes. In the present study, we used representational similarity analysis (RSA) to investigate the extent to which nodes of the DMN and ECN reinstate information between a generation phase, in which participants generated novel or appropriate word associations to single nouns, and an evaluation phase, where we presented the associations back to participants to evaluate them. We showed strong evidence for reinstatement within the ECN dorsal lateral prefrontal cortex during the novel association task, and within the DMN medial prefrontal cortex during the appropriate association task. We additionally showed between network reinstatement between the ECN dorsal lateral prefrontal cortex and the DMN posterior parietal cortex during the novelty task. These results demonstrate the importance of both within- and between-informational reinstatement for generating and evaluating ideas, and implicate both the DMN and ECN in dual process models of creativity.

Complex cognitive processes, like creative thinking, rely on interactions among multiple neurocognitive processes to generate effective and innovative behaviors on demand, for which the brain’s connector hubs play a crucial role. However, the unique contribution of specific hub sets to creative thinking is unknown. Employing three functional magnetic resonance imaging datasets (total N= 1,911), we demonstrate that connector hub sets are organized in a hierarchical manner based on diversity, with “control-default hubs”—which combine regions from the frontoparietal control and default mode networks—positioned at the apex. Specifically, control-default hubs exhibit the most diverse resting-state connectivity profiles and play the most substantial role in facilitating interactions between regions with dissimilar neurocognitive functions, a phenomenon we refer to as “diverse functional interaction”. Critically, we found that the involvement of control-default hubs in facilitating diverse functional interaction robustly relates to creativity, explaining both task-induced functional connectivity changes and individual creative performance. Our findings suggest that control-default hubs drive diverse functional interaction in the brain, enabling complex cognition, including creative thinking. We thus uncover a biologically plausible explanation that further elucidates the widely reported contributions of certain frontoparietal control and default mode network regions in creativity studies. © The Author(s) 2023. Published by Oxford University Press. All rights reserved.

Creativity often requires envisioning novel connections and combinations among elements in space, e.g., to invent a new product or generate a work of art. A relationship between spatial cognition and creativity has been demonstrated at both the behavioral and neural levels, but the exact neurocognitive mechanisms that bridge this connection remain unclear. The present study tested whether individual differences in functional activation in spatial cognition-implicated brain regions (specifically focusing on premotor and superior parietal cortex) during mental rotation were associated with figural creativity in a composite object creation task. Functional activation in premotor and superior parietal cortex during a classical spatial task (mental rotation; MRT) has previously been causally linked with dissociable components of spatial cognition: superior parietal activity with abstract spatial representation, and premotor activity with active spatial manipulation. The present findings indicate that individual differences in functional activation of both superior parietal cortex and premotor cortex during MRT were associated with individual differences in figural creativity. The present data thus provide new evidence of a correlation between the activity in spatial cognition-implicated brain regions and figural creativity, and suggest initial insights into particular components of spatial processing (both representation and manipulation) that may be related to creative ability.

Creativity has long been conceptually linked to experiences of emotion and mind wandering, yet these empirical relationships remain unclear, and few studies have explored the thoughts and emotions of creative people in daily life. To investigate how creativity relates to everyday cognitive and affective experiences, the present study (N = 159) used experience sampling to examine how creative cognition (divergent thinking ability) and creative behavior (self-reported creative activity and achievement) measured in the lab may predict thought content, affective state, and the frequency of mind wandering (i.e., task-unrelated thought) in daily life. Additionally, we assessed in-the-moment thoughts and emotions predictive of thinking about a creative project in everyday life (i.e., creative project thought ). We found that each form of creativity was generally associated with positively-valenced experiences, such as having pleasant thoughts, enjoying one's everyday activities, and feeling motivated and inspired. We also found that positive, activating emotions (happy and energetic) were positively associated with divergent thinking ability and in-the-moment creative project thought. Furthermore, positive, deactivating emotions (relaxed and connected) negatively predicted momentary creative project thought-indicating that positive affect can be tied to less creative thinking, depending on the activation level of emotions. No relationship was found between daily-life mind wandering frequency and divergent thinking ability or creative behavior/achievement, suggesting that the overall amount of task-unrelated thought in everyday life is not related to individual creativity. Taken together, the present findings provide novel evidence on the everyday experiential correlates of creative thinking and behavior.