In this recent Neuroimage paper, Geake and Hansen raise the possibility that creative analogical thinking and crystallized intelligence (IQ) are not as different as one might think. using the Copycat Project (Hofstadter and Mitchell), researchers found that sites important for the generation of insightful analogies were ones that are already known to be interesting - the frontal lobes (reasoning, deciding), parietal lobes (imagery, representations), and cingulate (conflict, selection)..yellow arrows added below.
But what was surprising was how areas associated with fluid analogies (frontal, parietal activation) correlated with verbal IQ.
Fluid Analogies Paper
Analogies in Gifted Education - Making Connections
Humor, Analogy, and Metaphor in Teaching
More Technical Paper on Analogical Thinking