This is a brief project where I look at mental health symptom networks in a large sample of youth from the ABCD Study for the course Principles of Complex Systems. I was largely inspired by the work being done by Denny Borsboom and company using network analysis to study mental health. There is still a lot of work to do, but the report for the class can be found here.
Check out this awesome paper for more on applying complex systems thinking to psychopathology!
This is a project examining the effect of premature birth on mental health and neurocognition in a large sample of youth from the ABCD Study.
Below is an interactive HTML page using R Markdown for the analyses and visualization. The source code is posted here and there is an interactive Rmarkdown page here as well.
This is the project I presented at the OHBM 2019 conference in Rome - “Differences in Cognition and BOLD Signal Related to Early Stages of Puberty”.
This is the abstract I submitted to OHBM 2020 for the ABCD Brain Analysis Tool. The GUI was built under the guidance of the great Bader Chaarani. We thought about naming it something punny after Bader - i.e. The ABCD BAD Tool - but we couldn’t think of anything appropriate for submission.
Anyways, here’s the abstract:
Authors: Philip Nguyen, Hugh Garavan PhD, Alexandra Potter PhD, Bader Chaarani PhD
Introduction: Given the computational and analytical expertise required to study large MRI datasets such as that generated by the Adolescent Brain Cognitive Development (ABCD) study, we created the ABCD Brain Analysis Tool (BAT) to allow researchers from various academic backgrounds to utilize fMRI data in their research. Here, we introduce a fast and intuitive graphical user interface (GUI) that automates design matrix creation for PALM, parametric and non-parametric analyses, and t-statistic and effect-size map generation using ABCD voxel and vertex data.
I built a searchable data dictionary and ABCD release notes all in one place, which addresses some of the navigational issues I had with NDA’s data dictionary.
Unfortunately I can’t show the app’s source code due to confidentiality, but this is a GIF demonstrating what it does.
Built using R and Shiny. Data pulled from NDA website.
This is an app I built in Shiny to help ABCD Researchers download ABCD datasets (Unfortunately I can’t show the app due to confidentiality, but the source code is here.)
Here is a GIF demonstrating some of the app’s functionality.
You can select which spreadsheet(s) you want to download, specific variables from the spreadsheets, which visits to include, and what to name your file.
Developed with R and Shiny.