Meet our Team

Dr. David M. Greenberg

Dr. David M. Greenberg

David is a social neuroscientist, psychologist, and musician at Bar-Ilan University and an Honorary Research Associate at the Autism Research Centre.

Professor Simon Baron-Cohen

Professor Simon Baron-Cohen

Simon is the Director of the Autism Research Centre at Cambridge University. He is the author of Mindblindness, The Essential Difference, and Zero Degrees of Empathy.

Dr. Carrie Allison

Dr. Carrie Allison

Carrie is the Deputy Director at the Autism Research Centre at Cambridge University and specializes in clinical screening tools, psychometrics, and clinical trials.

Dr. Simon Braschi

Dr. Simon Braschi

Simon is the lab and database manager at the Autism Research Centre at Cambridge University and in charge of one of the largest databases on autism and psychopathology.

The science

The test is based on the empathizing–systemizing (E–S) theory. Empathizing is the drive to identify another person's thoughts and feelings and respond with an appropriate emotion. Systemizing is the drive to analyze and build rule-based systems. Comparing how strongly someone scores on each places them in one of five brain types:

  • Type E — empathizing is stronger than systemizing
  • Type S — systemizing is stronger than empathizing
  • Type B (balanced) — the two are about equal
  • Extreme Type E — empathizing is much stronger than systemizing
  • Extreme Type S — systemizing is much stronger than empathizing

Our findings about brain types come from a study of over 650,000 people:

Greenberg, D. M., Warrier, V., Allison, C., & Baron-Cohen, S. (2018). Testing the Empathizing–Systemizing theory of sex differences and the Extreme Male Brain theory of autism in half a million people. Proceedings of the National Academy of Sciences, 115(48), 12152–12157. doi.org/10.1073/pnas.1811032115

Your data

This website does not collect any personal information. When you start the test, you're taken to our survey on Qualtrics, where you'll see full information about the study and how your answers are stored before you begin.