Impact of Stimulants and In-Scanner Motion on Attentive Task Performance in ADHD (ADHD_NFB)

Study Summary

The goal of this interventional study is to learn the effects that stimulant medication prescribed to ADHD individuals has in their performance of attentive tasks, as measured by images and data collected through neuroimaging (fMRI) while also implementing new motion-correcting software. The main questions it aims to answer are: 1. How do the use of stimulants affect brain activity and motion in fMRI research in ADHD studies? 2. Can neurofeedback, an attentive task using real-time brain activity, engage the same brain circuits as seen with stimulant medication in individuals with ADHD? Researchers will compare participant's brain activity from the completion of attentive tasks performed in the scanner while following their regular medication regimen and while abstaining to take medication. Researchers will also compare how the data collected using a more precise motion correction software differs to other previously reported data from ADHD studies who possibly employed more lenient measures of motion correction. Participants will: 1. Be asked to complete at least 4 fMRI sessions, two of which will include neurofeedback 2. Be asked to abstain from taking stimulant medication on the day of two of these fMRI visits 3. Complete attentive tasks while in the scanner that will activate target brain regions of interest

Primary Outcome

Compare whether neurofeedback can mimic the effects of stimulants by engaging similar attentive brain circuits and providing a normalized activation effect similar to that of stimulants (measured in units of neural activation, with intensity based on p-value of significance, and by a z-score obtained in real-time during the task). This data will be collected during the completion of the neurofeeback task while in the scanner.

Interventions

• COMBINATION_PRODUCT fMRI Neurofeedback attention task