The Caltech Corpus Callosum Research Program studies how the corpus callosum facilitates human cognition and social skills. Much of our work involves research on the brain structure, neural activity, and behaviors of individuals with agenesis of the corpus callosum (AgCC).

ANNOUNCEMENT: New Study of Early Development!

Do you have a child with dysgenesis of the corpus callosum who is 5 years old or younger? If so, please consider participating in our new online research study! For this study we are enrolling parents & primary caregivers only.

Participant Requirements:

  • Parent or primary caregiver of a child with dysgenesis of the corpus callosum (agenesis of the corpus callosum or hypoplasia; diagnosed via MRI, CT, or ultrasound) and the child must be 60 months of age or younger at time of enrollment.
  • Parent / caregiver must be 18 and above and must able to complete online forms, consents, and interviews in English

This new research project is designed to increase our knowledge about early development of children with dysgenesis of the corpus callosum.

To learn more about the study and begin enrollment, please click here or contact us at

Support our Program.

Related Sites:

Caltech Emotion and Social Cognition Laboratory

Autism Research Project

In The News

Scientific American
A feature article on AgCC is available in the Jan-Feb 2013 edition of Scientific American Mind.
Click here for a preview.

Review of AgCC
Agenesis of the corpus callosum: genetic, developmental and functional aspects of connectivity.
Nature Reviews Neuroscience 2007, Vol.8, pp 287 - 299
Download PDF

The AgCC project was featured in a PBS documentary called Curious.
Click here to see the show.

The Real Rainman
Caltech's AgCC Project was featured in a documentary about Kim Peek on the Discover Science Channel May 26, 2006.

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