News and updates from the Tetra/Pentasomy X Support Group
Updated February 25, 2009. Please email the webmaster with updates or additions for this page.
The Child Psychiatry Branch of the National Institute of Mental Health is conducting a study of the effects of sex chromosomes on brain development. This study hopes to determine whether brain-imaging studies of children with sex chromosome variations will help uncover core biological features of these chromosomal conditions.
Male and female volunteers aged 5-25 with a sex chromosome variation (XXY, XYY, XXYY, XXXY, XXXXY, XXX) are needed to participate in this study.
We are currently focusing on boys and girls and young adults with XXYY, XXXY, XXXXY, XXXX, and XXXXX. (This includes Tetrasomy & Pentasomy).
Participation involves coming to the National Institutes of Health (NIH) in Bethesda, Maryland (just outside of Washington D.C.) for a one-day visit, which will include:
For participants who live outside of the Washington D.C. area, transportation and lodging for a 2-night stay will be provided for the child and two parents. In addition, each participant will receive a summary of test results and a souvenir photo of his brain.
information about the NIH Sex Chromosome Variations Study, contact: Jonathan
Blumenthal, M.A., Project Coordinator Email:
**If you would like additional information from families who have participated, contact Christy Hauk. (link to email@example.com).