A common model of representational and connectivity spaces in human cortex

The functional architecture of human cortex hosts high-dimensional information spaces for representation and functional connectivity. These spaces are realized in fine-grained topographies of response tuning and functional connectivity patterns. We have developed a model of the shared structure in these response and connectivity topographies that we derive with new algorithms called response hyperalignment and connectivity hyperalignment. These models capture cortical topographies as multiplexed topographic basis functions, which are specific to each individual brain, that are associated with basis functions for response tuning and functional connectivity, which are common across brains.