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Updated: May 14, 2026

Group Synchronization During Collaborative Drawing Using Functional Near-Infrared Spectroscopy
Published on: August 5, 2022
Vision and sketching
1Northwestern University, Ford 3-320, 2133 Sheridan Road, Evanston, IL 60208, USA. forbus@northwestern.edu
Abstract:
This essay reflects on the revolution David Marr brought about in vision research, and in cognitive science more broadly. I start with an insider's view, then examine the methodological impact of his framework in cognitive science in general. My group's work on sketch understanding descends from Marr's approach to vision, a connection which I make to provide a concrete illustration. I close with a few thoughts about how research in vision and other areas of cognitive science might come together in the future.
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