This study uses 3D ultrasound to look at babies' brains in the womb, and then follows their development for 18 months after birth to see if markers found during gestation might predict autism.

We investigate if certain physical health conditions are more common in autistic people, exploring medical vulnerabilities and biological pathways which may be helpful in understanding autism.

Prenatal sex steroid hormones (like testosterone and estrogen) are known to change behaviour, cognition, and brain structure and function. This longitudinal study follows babies to see how hormones in the womb affect their behaviour.