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Investigating the Neural Bases of Cognitive Processes with fMRI
Across multiple domains, cognitive functions are implemented by networks of interacting brain regions. Moving from region to region, information is transformed giving rise to multiple representations that make behavior possible. Studying the neural processes that transform information from region to region requires characterizing:
1) the representations encoded by individual brain regions;
2) the computations that map the representations in one region to the representations in another.
A wealth of research focuses on point 1), but research on point 2) is scarce. I will discuss a series of studies aimed at understanding how information is processed from brain region to brain region, leading to an approach that captures the multivariate and nonlinear nature of neural processes starting from fMRI data.