Creativity involves alternating between generating ideas and evaluating them. A refined Dynamic Framework of Thought describes creative generation not as one mental state but as a product of many varying states. The psychedelic state is proposed as a mental state with high potential for facilitating creative generation, making psychedelic substances useful experimental tools for studying the neuroscience of creativity.
Abrupt transitions in thought content occur at surprising times but lead to unsurprising content, while wayward transitions occur at surprising times and also lead to surprising content. The authors distinguish these two types using probabilistic and predictive processing concepts, employing transition and occurrence probability metrics. They discuss how these transitions may contribute to mental function and their possible neural implementation.
The flow of thought is persistent and sometimes unpredictable, and understanding what influences how thoughts shift from moment to moment has implications for disorders like schizophrenia and recurrent nightmares. This study examined whether cognitive control limits moment-to-moment content shifts across sleep and wakefulness. Thought variability was measured as semantic incoherence between sequential thought phrases in dreaming and waking reports. During wakefulness, on-task conditions showed reduced thought variability compared to off-task conditions, and thought variability was greater when thoughts wandered freely. During sleep, lucid dreams, which involve higher cognitive control, showed reduced thought variability compared to non-lucid dreams. These results suggest that cognitive control may limit thought variability across the 24-hour cycle of thought generation, consistent with the Dynamic Framework of Thought.