Andrew M. Haun
Andrew M. Haun is an Assistant Scientist in the Department of Psychiatry at the University of Wisconsin-Madison, working within the Wisconsin Institute for Sleep and Consciousness. His research investigates the visual system, spatial perception, and the mathematical formalization of phenomenal structure.
Haun is a key co-author of the foundational paper “Integrated information theory (IIT) 4.0, Formulating the properties of phenomenal existence in terms of cause-effect power” (2023, with Larissa Albantakis, Matteo Grasso, and Giulio Tononi). Haun’s work specifically demonstrates how 2D and 3D grid-like topological wiring diagrams in the visual cortex unfold mathematically into rich, extended spatial Phi-structures that mirror the phenomenal geometry of visual consciousness.
Haun’s contributions bridge abstract information theory with concrete sensory neuroanatomy, demonstrating that the qualitative structure of an experience corresponds one-to-one with the shape of its maximally irreducible cause-effect complex.
Known for. Co-author of Integrated Information Theory 4.0 (IIT 4.0), visual psychophysics, spatial cause-effect structures, cortical grid geometries
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Every researcher covered on this site is indexed in the directory of consciousness researchers, grouped by the position their published work defends. The positions themselves are set out in the index of consciousness theories.