W. Kyle Simmons

American cognitive neuroscientist. At the time of the 2015 Nature Reviews Neuroscience paper with Lisa Feldman Barrett, Simmons was at the Laureate Institute for Brain Research in Tulsa and at the University of Tulsa's Department of Community Medicine, where he co-led the LIBR Body Sensing Lab. Co-author of the 2018 Roadmap. His research line bridges Barrett's affective-science programme and the LIBR clinical-imaging tradition, with a focus on the corticocortical connectivity of the agranular visceromotor cortices.

Stake§

Simmons's stake is methodological and architectural. The EPIC model in Barrett and Simmons 2015 is the architectural-anatomical companion to Barrett's broader theoretical programme; the model's specificity about which cortical layers do what is largely Simmons's contribution. His LIBR position connects the constructed-emotion theoretical programme to the clinical-imaging infrastructure that Khalsa directs.

Simmons's contribution to the EPIC model is the corticocortical-connectivity grounding. The model proposes that the agranular visceromotor cortices — the anterior insula, the anterior cingulate cortex, and the ventromedial prefrontal cortex — generate top-down predictions about expected body state, which descending projections deliver to the granular interoceptive sensory cortices and to the visceromotor periphery. Prediction errors then ascend the cortical hierarchy in the opposite direction. The cytoarchitectonic-to-function mapping is what makes the model testable in principle.

The LIBR work has applied the predictive-processing frame to specific clinical populations and to specific interoceptive modalities — gustatory interoception, visceral pain processing, the appetite-and-eating disorder connection. The Body Sensing Lab Simmons co-led has been one of the clinical-translation hubs that the Roadmap draws on for its psychiatric-disorder predictions.

Simmons is the methodological-architectural partner in the constructed-emotion programme and one of the figures connecting Barrett's Northeastern theoretical work to the Tulsa clinical-imaging infrastructure. His contributions tend to be co-authored rather than first-authored; his work is the kind that builds the empirical and architectural substrate other people's headline arguments stand on.