This study is looking at how impulsivity (acting without thinking) and compulsivity (being overly inflexible) are connected to brain development and genetics. Researchers want to understand why people have different levels of these behaviors, especially in conditions like Obsessive Compulsive Disorder, Conduct Disorder, Attention Deficit Hyperactivity Disorder, and Autism Spectrum Disorder. They will measure a brain chemical called glutamate using Magnetic Resonance Spectroscopy (a type of brain scan) and look at how much of this is passed down through families. This is an observational study, meaning there are no interventions or treatments being tested. It aims to enroll 1100 participants between 6 and 80 years old. The current status of the study is unclear.

Study design

This is an observational study that plans to enroll 1100 participants. It uses a longitudinal design to study development over time and a twin design to look at how traits are inherited.

What's involved

You will have a medical history taken and your medical records reviewed. You will talk about your mental and behavioral development, including topics like drug use and sexual activity, and complete surveys about impulsivity and compulsivity. Glutamate concentration will be measured yearly if possible.

Compensation

Not stated in the trial record.

Follow-up

Glutamate concentration will be measured yearly if possible, but the overall duration of follow-up is not specified.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.