Not my field, but can queue you into ways to optimize searching?

Insight learning is the "aha" moment we arrive at when the solution isn't nec. something we can deduce from our past experiences. It's a specific extreme of a novel problem, as that term can be used for things we can deduce solutions to.

Here're the three most-relevant studies that came up for a boolean search for fMRI + "insight learning" https://d1wqtxts1xzle7.cloudfront.net/44317146/Neural_correlates_of_the_Aha_experiences20160401-21193-1spnnjf-with-cover-page-v2.pdf?Expires=1665970463&Signature=Th~81e18UNi4YyTdBPH74al0VYAohwD9pw8rVs-z1lSXekdLayAcud6adesF-RumDXysyadlO8N92GsPWFZT4J2psbypDhlT43jl2QVRo~NNgO~yHJ44l5Bo1IIP-r1AUIWzv62fnJ7qHjC1PpboPr4DGj-92VuHZPZZuFoyd1upd6K6gtdrYqKM1FDp3fjRZlMmVS2Xdcea3a7lnMbEAoka7ENn7RE69hP-s99MtSbVOrrboBrhNFpn~QfgnapWzfzAgYhGjK~3VeN547Is83P6~jnsyBPoIXiwS1GFdjoHmIyLCmSoTpoBwS8rYS05Hwzi2j5a9dYy8HICyipsjQ__&Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA

https://onlinelibrary.wiley.com/doi/pdf/10.1002/hbm.24073

https://www.frontiersin.org/articles/10.3389/fnsys.2016.00046/full