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NDAR provides a single access to de-identified autism research data. For permission to download data, you will need an NDAR account with approved access to NDAR or a connected repository (AGRE, IAN, or the ATP). For NDAR access, you need to be a research investigator sponsored by an NIH recognized institution with federal wide assurance. See Request Access for more information.

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The filters you have selected from various query interfaces will be stored here, in the 'Filter Cart'. The database will be queried using filters added to your 'Filter Cart', when multiple filters are defined, each will be executed using 'AND' logic, so with each filter that is applied the result set gets smaller.

From the 'Filter Cart' you can inspect each of the filters that have been defined, and you also have the option to remove filters. The 'Filter Cart' itself will display the number of filters applied along with the number of subjects that are identified by the combination of those filters. For example a GUID filter with two subjects, followed by a GUID filter for just one of those subjects would return only data for the subject that is in both GUID filters.

If you have a question about the filter cart, or underlying filters please contact the help desk at The NDA Help Desk

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Data Structures with shared data
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["Clinical Assessments","Federated","Federated; AGRE","Federated; ATP","Federated; IAN","Federated; SFARI","Neurosignal Recordings","Omics"]
["ABCD","ACE Common Measures","ACE Common Measures V2","AGRE","ATP","CPEA STAART","IAN","NDAR","NDCT","NIH Toolbox","Osteoarthritis Initiative","PING","Pediatric MRI","PhenX","RDoC","SFARI"]
["ADHD","Abuse","Acoustics","Activity","Addiction","Adverse Events","Aggression","Anger","Anxiety","Arousal","Behavior","Cognitive","Conflict","Coping","DTI","DTI, MRI, fMRI","Delusions","Demographics","Depression","Diagnostic","EEG","EGG","EMG","ERP","Emotions","Enrollment","Entry Form","Evaluated Data","Exit Form","Experimental","Exposure","Eye Tracking","Fatigue","Fear","Food","Gen Test","Hallucinations","IQ","Life Events","Loneliness","MEG","MRI","Mania","Med History","Mood","Network","OCD","Omics","PTSD","Pain","Panic","Parenting","Personality","Phobia","Phys Characteristics","Phys Exam","Pleasure","Psychosis","Quality of Life","Questionnaire","Relationships","Resolve Identifiers","Satisfaction","Seizure","Self-Harm","Sensory","Side Effects","Sleep","Social Adjustment","Social Responsiveness","Social Support","Socioeconomic","Spectroscopy","Speech-Language","Stigma","Stress","Substance Use","Suicide","Summary","Task Based","Taste","Temperament","Trauma","Treatment","Violence","Well-Being","X-Ray"]
SelectTitleShort NameSourcesCategoriesSubmissionShared Subjects
Advanced Normalization Tools (ANTs) Cortical Thickness antsvol01NDAREvaluated DataAllowed1,853
Analyzed EED Data Form Part 2aeegdf201NDAREvaluated DataAllowed46
Analyzed EEG Data Formaeegdf01NDAREvaluated DataAllowed46
FIRST Volumetrixfsvol01NDAREvaluated DataAllowed1,004
FreeSurfer Volumetrixfreesvol01NDAREvaluated DataAllowed917
Imaging_qaimaging_qa01NDAREvaluated DataAllowed1,322
NGS QAomics_qa01NDAREvaluated DataAllowed9,047
Processed MRI Datafmriresults01NDAREvaluated DataAllowed385
NIMH Data Archive (NDA) Data Dictionary

This page displays a list of all the structures currently supported in the NIMH Data Archive (NDA) Data Dictionary. Each structure represents a standardized definition of a measure that has been defined by researchers. On this list you can view:

  • Title: The name of the measure. This list is sorted alphabetically by title by default
  • Short Name: The NDA abbreviated ID for the structure
  • Shared Subjects: The number of unique subjects with shared data in this structure
  • Sources: Which NDA database(s) or federated systems include projects that have used this structure
  • Categories: The type of measure, relevant mental health issue, or other way of categorizing the structure
  • Submission: Some structures are obsolete, superseded by newer structures, or were created to support legacy projects. This column will display "Allowed" or "No" to indicate whether or not submissions of new data are currently accepted in this structure.

You can use the Search bar to filter the displayed structures based on category and title, or use the arrows in the header row to sort the current display based on that column. Once you’ve located a structure of interest, click on the title to enter the individual structure page.

You can use the check-boxes on the left to make selections and "Download" to add all data in those structures to your download cart. Please email the The NDA Help Desk with any questions.