Welcome to the BGAP Study site! BGAP stands for Brain, Genes, And Puberty and is a study of Klinefelter syndrome and male adolescent neurodevelopment. At the Center for Interdisciplinary Brain Sciences Research we investigate brain development and function and specific genetic influences in children, and strive to understand how this information is associated with behavioral and cognitive variation across development.

Led by Dr. Allan Reiss and Dr. Judith Ross, this study is investigating the development of brain and behavior in boys with and without Klinefelter syndrome (KS). It is a longitudinal study during which families will participate in 4 annual visits, giving insights into the development of boys and pre-teens with KS.

Meet the BGAP Team

Read more about our research team.

About the BGAP Study

Learn more about Klinefelter syndrome and what participation entails.

Join the BGAP Study

Find out if your family is eligible.