====== ABCD ======

The [[https://abcdstudy.org/ | ABCD Study]] is the largest long-term study of brain development and child health in the United States.

Adolescent Brain Cognitive Development
  * Age range: currently 9-13 
  * Sample size: N = 11,880
  * Longitudinal 
  * Excludes neurodevelopmental disorders 
  * Collected across 21 sites (3T Siemens, GE, and Philips)
  * Accessible through NDA
  * Neuroimaging Measures
    * Structural MRI
    * DTI
    * Resting state fMRI (2 5-min runs)
    * Task fMRI
      * Emotional N-back
      * StopSignal 
      * Monetary Incentive Delay
  * Other Available Measures
    * Pubertal Development Scale 
    * Psychopathology: KSADS, YSR/ASR
    * Cognitive: NIH Toolbox, BIS/BAS, UPPS
    * Pubertal hormones
    * Genetics



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The [[https://www.abcd-repronim.org/| ABCD ReproNim]] course provides training for reproducible analyses using the ABCD dataset. 

Data/variables can be explored here: https://data-dict.abcdstudy.org/?

Study protocols can be found here: https://abcdstudy.org/scientists/protocols/

And here's an ABCD discussion forum for further questions: https://github.com/now-i-know-my-abcd/docs/discussions