Current Research & Participation
Current study information and participation opportunities for all Joel Nigg, Ph.D. funded and pilot research projects.
We have many staff, students, and volunteers who are carefully screened and trained to work with parents and children. All meet current requirements for IRB and OHSU compliances.
Parents will be in the same area as their child at all times, though they will be in different rooms. Children will always be accompanied by one of our staff or students.
HETEROGENEITY OF MECHANISM AND PATHWAY IN CHILD ADHD (IRB # 4817) Recruitment for this study ended on 12/31/11
Called “The ADHD Research Study,” this longitudinal study follows children, ranging in age from 7 to 11, for three years to track the course of ADHD. The study will learn about different types of ADHD; combine existing ADHD assessment with newer measures to further understand and predict ADHD development; learn how physiological measures of heart rate and psychological measures of temperament may be used to identity clinical groups, and predict change over time. Results will help us design better assessment and treatment for children with learning and attention problems. This is not a medication study. Informal clinical feedback is given regarding your child’s psychological results.
Become an intern or volunteer for the study
LONGITUDINAL IMAGING STUDY OF ADHD BRAIN DEVELOPMENT (IRB # 6258) Recruitment for this study ended on 6/30/13
Under the same umbrella as the study above, this longitudinal study follows children, ranging in age from 8 to 12, for three years to track course of ADHD. The goal of this project is to evaluate the brain using new technologies that enable us to determine how the brain sets up its internal connections in relation to ADHD. Achieving this goal would not only give us a deeper understanding of normal development, but also a richer insight into the nature of ADHD. This is not a medication study. Informal clinical feedback is given regarding your child’s psychological results.
IMAGING STUDY OF ADHD BRAIN DEVELOPMENT (IRB #6258)
The purpose of this Imaging Study of ADHD Brain Development is to learn all we can about Attention Deficit Hyperactivity Disorder and Brain Development in siblings ages 8-12. By the end of the study, we hope to have a clearer understanding about the different types of ADHD, what is needed to give a fair assessment, see if brain development plays a part in the assessment, and look at differences among full biological siblings. This is not a medication study.
TYPICAL AND ATYPICAL BRAIN DEVELOPMENT (IRB # 5239)The purpose of this study is to look at differences in the brains of children and adolescents with ADHD versus with Autism Spectrum Disorders with and without hyperactivity to better understand what causes these disorders.
To participate as a research subject, see our brochure
BRAIN NETWORK STRUCTURE IN ADULT ADHD (IRB # 6943)
Also called “ADHD Network Analysis”, the purpose of this study is twofold: first to determine the stability of the functional interactions among brain areas in individuals with no history of attention difficulties, and second, to identify the effects of medication state on the organization of the functional interactions among brain areas in people with ADHD. The goal is to use fMRI scans to determine whether the neural networks of adults with ADHD will change from a configuration of local sets of connections (similar to the configuration found in children) when not on stimulant medication, to a more distributed functional configuration (similar to the configuration found in most adults) while on stimulant medication.
ADHD/ADD, NUTRITION, AND TOXICANTS PILOT STUDY (IRB # 5261)The purpose is to learn more about ADHD/ADD via diet, genetics, nutrition, environmental toxicants, and trace contaminants. We hope to link this information with clinical features to gain insights into causes of ADHD.
(Only participants of the ADHD Research Study are eligible)
See our brochure
PRENATAL RISK FOR ADHD PILOT STUDY (IRB # 6749)
The Psychiatry Department, in collaboration with the Women's Health Research Unit is conducting a study evaluating the relationship between nutrition, stress, toxins and Attention Deficit Hyperactivity Disorder (ADHD) development. We will be recruiting women with ADHD-like symptoms in their second trimester of pregnancy. Women will be randomized into either a nutrition intervention or standard-of-care arm. Those in the nutrition intervention will receive nutritional counseling every other week during their third trimester. Those randomized to the standard-of-care group, will meet with the study coordinator in conjunction with some of their prenatal visits, and will also receive the nutrition education materials at the end of the study. Infants will receive an MRI scan by one month of age and will be followed for the first three months.
INFANT IMAGING FEASIBILITY PILOT STUDY (IRB # 7229)
The purpose of this pilot is to learn more about giving MRI scans to infants younger than 26 months old. It will help us prepare for a larger study of infant brain imaging.
participate as a research subject, see our brochure