A paper by Nagamori, first-year master's student Fumika Suzuki and colleagues was published in Frontiers in Neuroergonomics.

In this exploratory study, prefrontal hemodynamics were measured with wearable fNIRS while participants built chair models from blocks in a naturalistic design task. The study examined how the relationship between Visualization (the tendency to picture shapes in one's mind) and brain activity changes with the range of materials available. The paper is open access, and the full text is available at the link below.

Top: a participant during the task (Figure 2, CC BY 4.0). Bottom: graphical abstract. Only under the broad material set did higher Visualization go with a larger prefrontal (Fp2) hemodynamic change, and the effect was concentrated at 60–79% of the task timeline.