The common brain-manufacturing plan

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A note for Lesson no. 1, "You Have One Brain (Not Three)," in Seven and a Half Lessons About the Brain by Lisa Feldman Barrett.
Some context from page 21 is:

The common brain-manufacturing plan begins shortly after conception...

The appendix adds:

Finlay’s model calculates the equivalent number of days for any developmental event across eighteen mammalian species that have been studied and even some animal species not included in the original model.

For more details on the common brain-manufacturing plan, see these references,[1][2][3] as well as the Translating Time website.


  1. Finlay, Barbara L., and Ryutaro Uchiyama. 2017. "The Timing of Brain Maturation, Early Experience, and the Human Social Niche." In Evolution of Nervous Systems, second edition, volume 3, edited by Jon H. Kaas, 123–148. New York: Elsevier.
  2. Workman, Alan D., Christine J. Charvet, Barbara Clancy, Richard B. Darlington, and Barbara J. Finlay. 2013. “Modeling Transformations of Neurodevelopmental Sequences Across Mammalian Species.” The Journal of Neuroscience 33 (17): 7368–7383.
  3. Workman Alan D., Christine J. Charvet, Christopher D. Gaffney, Barbara Clancy, Richard B. Darlington, and Barbara L. Finlay. 2011. “Translating Time: Extending a Model of the Timing of Early Neurodevelopmental Events in Mammals to Cross-Vertebrate Structural, Physiological and Behavioral Postnatal Maturation.” Society for Neuroscience Abstracts 37: 638.05.