⏳ Remarkably, we also found greater temporal irreversibility during creative ideation between visual and high-level areas, suggesting the enhanced hierarchical structure of causal interactions as a neural signature of creative storytelling.

🧠 Moreover, creative narratives showed unique (between and within) functional interactions across the default mode, salience, and control networks.

🧠 Next, we also applied Connectome Harmonic Decomposition (CHD) to neural dynamics into connectome harmonic modes and found specific spatial frequency patterns underlying the modulation of semantic control during story generation.

🧠 Using decoding analysis, we showed that creative stories were neurally distinct, differentiated from ordinary stories in frontal regions, and from random ones in fronto-temporo-parietal areas.
Crucially, the same brain regions encoded the semantic features that behaviorally defined creativity.

🧠 At the neural level, linguistic and visual areas exhibited neural synchrony across participants regardless of the semantic control level, with parietal and frontal regions being more synchronized during random ideation.

🗣️To quantify creativity and task adherence, we used word2vec to compute semantic distance (novelty) and BERT to estimate surprise (appropriateness). Creative stories fell between ordinary and random ones on both dimensions.

🎯 We recorded fMRI activity while participants generated 3 types of stories:
✔️ Ordinary (appropriate)
✔️ Random (novel)
✔️ Creative (balanced in novelty & appropriateness)

🧠 What happens in the brain when we turn ideas into stories, and what makes a story truly creative?

Our latest study explores the neural mechanisms supporting semantic control during narrative ideation.

#fMRI + #LLMs
Out in Communications Biology @commsbio.bsky.social

A thread 👇

Huge news! 🚨 @agreco.bsky.social 's #STST framework has hit Nature Computational Science! 🧠🚀
A groundbreaking way to study how brains and machines process dynamic visual stimuli—creative, elegant, and game-changing.
P.S. So proud I had to bake it into a muffin. 🧁
For the article👇