Gregory S. X. E. Jefferis
Builder The claim is about what the hardware does, and the philosophy is left open
Gregory Jefferis is a coauthor of the October 2025 MaleCNS preprint. Its Crossref author record lists him as Gregory S X E Jefferis. The abstract describes a male brain and nerve cord connectome containing 166,691 neurons. That manuscript count should not be assumed to be an independently checked total for the later v1.0 release.
The reconstruction links anatomical circuit research with questions about brain emulation. A map can constrain which neurons connect and how many synaptic contacts join them. Predicting activity also requires physiological parameters and validation. The MaleCNS analysis explains why broader anatomical coverage does not by itself establish a functioning or conscious emulation.
Jefferis is classified here as a Builder for coauthoring this research resource. The classification does not assign him a philosophical stance or infer project leadership from author order. The checked abstract supplies evidence about anatomical organisation, without a verdict on consciousness or substrate independence.
Known for. Coauthor of the MaleCNS preprint describing the male Drosophila central nervous system
Coverage on this site
- The Complete Drosophila Gustatory Connectome Maps Full Body Taste to Action October 2026
- MaleCNS v1.0 versus FlyWire and the Limits of Connectome Evidence September 2026
Related researchers
- Carlos RibeiroChampalimaud Foundation, Behavior and Metabolism Laboratory, LisbonSenior co-author of the complete adult Drosophila gustatory connectome (Cell, 2026), neural circuit mechanisms of internal nutrient states, foraging, and sensorimotor decision-making
- Philipp SchlegelCoauthor of the MaleCNS preprint on male and female Drosophila circuit organisation
- Stuart BergFirst author of the MaleCNS preprint on the male Drosophila central nervous system
- Isabella R. BeckettCoauthor of the MaleCNS preprint comparing male and female Drosophila brain connectomes
- Marta CostaCoauthor of the MaleCNS preprint on sexual dimorphism in Drosophila circuits
- Navid Anjum AaditDepartment of Electrical Engineering, Stanford University (present address); previously University of California, Santa BarbaraFirst author of the sparse Ising machine on FPGAs (Nature Electronics, 2022) and of the programmable probabilistic computer with one million p-bits (arXiv 2606.25313, 2026)
Gregory S. X. E. Jefferis is listed with the other builders, who hold that the claim is about what the hardware does, and the philosophy is left open. The positions themselves are set out in the index of consciousness theories. Every researcher covered on this site is indexed in the directory of consciousness researchers.