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Frequently Asked Questions


NDA Help Center

Filter Cart

The Filter Cart provides a powerful way to query and access data for which you may be interested.  

A few points related to the filter cart are important to understand with the NDA Query/Filter implementation: 

First, the filter cart is populated asyncronously.  So, when you run a query, it may take a moment to populate but this will happen in the background so you can define other queries during this time.  

When you are adding your first filter, all data associated with your query will be added to the filter cart (whether it be a collection, a concept, a study, a data structure/elment or subjects). Not all data structures or collections will necessarily be displayed.  For example, if you select the NDA imaging structure image03, and further restrict that query to scan_type fMRI, only fMRI images will appear and only the image03 structure will be shown.  To see other data structures, select "Find All Subject Data" which will query all data for those subjects. When a secord or third filter is applied, an AND condition is used.  A subject must exist in all filters.  If the subject does not appear in any one filter, that subjects data will not be included in your filter cart. If that happens, clear your filter cart, and start over.  

It is best to package more data than you need and access those data using other tools, independent of the NDA (e.g. miNDAR snapshot), to limit the data selected.  If you have any questions on data access, are interested in using avaialble web services, or need help accessing data, please contact us for assistance.  

Frequently Asked Questions



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NDA provides a single access to de-identified autism research data. For permission to download data, you will need an NDA account with approved access to NDA or a connected repository (AGRE, IAN, or the ATP). For NDA 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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This is a U.S. Government computer system, which may be accessed and used only for authorized Government business by authorized personnel. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. All information on this computer system may be intercepted, recorded, read, copied, and disclosed by and to authorized personnel for official purposes, including criminal investigations. Such information includes sensitive data encrypted to comply with confidentiality and privacy requirements. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms. There is no right of privacy in this system.

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["Clinical Assessments","Federated","Federated; AGRE","Federated; ATP","Federated; IAN","Federated; SFARI","Neurosignal Recordings","Omics"]
["ABCD Release 2.0","ACE Common Measures","ACE Common Measures V2","AGRE","ATP","CPEA STAART","IAN","NDA","NIH Toolbox","Osteoarthritis Initiative","PING","Pediatric MRI","PhenX","SFARI"]
["ADHD","Abuse","Acoustics","Activity","Addiction","Adverse Events","Aggression","Anger","Anxiety","Arousal","Attention","Behavior","Body Image","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","Neurophysiology","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","Sexuality","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
Analyzed EED Data Form Part 2aeegdf201Pediatric MRIEvaluated DataAllowed62
Peds - BRIEF Adult Version (Informant Report)peds_brief_adult_inform01Pediatric MRIBehaviorNo554
Peds - BRIEF Adult Version (Self Report)peds_brief_adult_self01Pediatric MRIBehaviorNo554
Peds - BRIEF Parent Formpeds_brief_parent_form01Pediatric MRIBehaviorNo554
Peds - BSID II Behavior Rating Scalepeds_bsid_ii_behavior01Pediatric MRIBehaviorNo554
Peds - BSID II Mental Scalepeds_bsid_ii_mental01Pediatric MRICognitiveNo554
Peds - BSID II Motor Scalepeds_bsid_ii_motor01Pediatric MRICognitiveNo554
Peds - Brief Telephone Screening Interviewpeds_brief_phone_screen01Pediatric MRIBehaviorNo554
Peds - CANTABpeds_cantab01Pediatric MRICognitiveNo554
Peds - CDISC4 Parent Versionpeds_cdisc401Pediatric MRIQuestionnaireNo554
Peds - California Verbal Learning Test for Childrenpeds_cvlt_c01Pediatric MRICognitiveNo554
Peds - California Verbal Learning Test, 2nd ed.peds_cvlt_ii01Pediatric MRICognitiveNo554
Peds - Carey Temperament Scales, BSQ (3 to 7 years)peds_carey_bsq01Pediatric MRITemperamentNo554
Peds - Carey Temperament Scales, EITQ (1 to 4 months)peds_carey_eitq01Pediatric MRITemperamentNo554
Peds - Carey Temperament Scales, RITQ (4 to 11 months)peds_carey_ritq01Pediatric MRITemperamentNo554
Peds - Carey Temperament Scales, TTS (1 to 2 years)peds_carey_tts01Pediatric MRITemperamentNo554
Peds - Child Behavior Checklist (CBCL)peds_cbcl01Pediatric MRIBehaviorNo554
Peds - Demographicspeds_demographics01Pediatric MRIDemographicsNo651
Peds - Differential Ability Scales (DAS)peds_das01Pediatric MRIIQNo554
Peds - Diffusion Tensor Imagingpeds_dti04Pediatric MRIDTINo274
Peds - Disc Predictive Scalespeds_dps401Pediatric MRIPhys CharacteristicsNo554
Peds - Expanded Diffusion Tensor Imaging (eDTI)peds_edti02Pediatric MRIDTINo152
Peds - FIGS Family History Int. Genetic Studies Yr1peds_figs_yr101Pediatric MRIMed HistoryNo554
Peds - FIGS Family History Int. Genetic Studies Yr3peds_figs_yr301Pediatric MRIMed HistoryNo554
Peds - Family Biographical History Form (0:0 - 4:5 y:m)peds_family_bio01Pediatric MRIMed HistoryNo554
Peds - Full Telephone Screening Interview - Version 1peds_full_phone_screen_v101Pediatric MRIQuestionnaireNo554
Peds - Full Telephone Screening Interview - Version 2peds_full_phone_screen_v202Pediatric MRIQuestionnaireNo554
Peds - Handedness (1:0 to 2:11 y:m)peds_handedness_10_to_21101Pediatric MRIPhys CharacteristicsNo554
Peds - Handedness (3:0 to 5:11 y:m) - Part 1peds_hand_30_to_511_part101Pediatric MRIPhys CharacteristicsNo554
Peds - Handedness (3:0 to 5:11 y:m) - Part 2peds_hand_30_to_511_part201Pediatric MRIPhys CharacteristicsNo554
Peds - Handedness (6:0+ y:m) peds_handedness_6001Pediatric MRIPhys CharacteristicsNo554
Peds - JTCI Parent Reportpeds_jtci_parent_report01Pediatric MRIQuestionnaireNo554
Peds - JTCI Self Reportpeds_jtci_self_report01Pediatric MRIQuestionnaireNo554
Peds - Longitudinally Registered aMRI Variablespeds_mri_lr02Pediatric MRIMRINo553
Peds - MRI Child History Form (4:6+ y:m)peds_mri_child_history01Pediatric MRIMed HistoryNo554
Peds - NEPSY Verbal Fluency (Semantic and Phonemic)peds_nepsy_sem_phon01Pediatric MRICognitiveNo554
Peds - NEPSY Verbal Fluency (Semantic)peds_nepsy_semantic01Pediatric MRICognitiveNo554
Peds - Neuropsychologicalpeds_neuropsychological01Pediatric MRIPhys CharacteristicsNo554
Peds - Non-longitudinally Registered aMRI Variablespeds_mri03Pediatric MRIMRINo553
Peds - Parental Stress Indexpeds_psi01Pediatric MRIStressNo554
Peds - Physicalpeds_physical01Pediatric MRIPhys ExamNo554
Peds - Physical and Neurological Exam (0:0 to 0:1 y:m)peds_neurological_00_0101Pediatric MRIPhys ExamNo554
Peds - Physical and Neurological Exam (0:2 to 0:11 y:m)peds_neurological_02_01101Pediatric MRIPhys ExamNo554
Peds - Physical and Neurological Exam (1:0 to 2:11 y:m)peds_neurological_10_21101Pediatric MRIPhys ExamNo554
Peds - Physical and Neurological Exam (3:0 to 4:5 y:m)peds_neurological_30_4501Pediatric MRIPhys ExamNo554
Peds - Physical/Neurological Examinationpeds_neurological_exam01Pediatric MRIPhys ExamNo554
Peds - Preschool Language Scale-3peds_pls_301Pediatric MRISpeech-LanguageNo554
Peds - Psychiatric & Personalitypeds_psych_personality01Pediatric MRIDiagnosticNo554
Peds - Pubertal Status Questionnairepeds_pubertal_status01Pediatric MRIQuestionnaireNo554
Peds - Purdue Pegboard - Full Boardpeds_purdue_full01Pediatric MRIPhys CharacteristicsNo554
Peds - Purdue Pegboard - Half Boardpeds_purdue_half01Pediatric MRIPhys CharacteristicsNo554
Peds - Screening and Exclusion Form (0:0 to 4:5 y:m)peds_exclusion_form01Pediatric MRIQuestionnaireNo554
Peds - Spectroscopypeds_spectro_additional02Pediatric MRISpectroscopyNo553
Peds - TCI Parent Reportpeds_tci_parent01Pediatric MRIQuestionnaireNo554
Peds - TCI Self Reportpeds_tci_self01Pediatric MRIQuestionnaireNo554
Peds - Timepointpeds_timepoint01Pediatric MRISummaryNo554
Peds - Urine and Salivapeds_urine_saliva01Pediatric MRIPhys CharacteristicsNo554
Peds - WAIS-R Digit Span & Digit Symbolpeds_wais_r01Pediatric MRIIQNo554
Peds - WISC III Digital Span & Codingpeds_wisc_iii01Pediatric MRIIQNo554
Peds - Wechsler Abbreviated Scale of Intelligencepeds_wasi01Pediatric MRIIQNo554
Peds - Woodcock-Johnson IIIpeds_wj301Pediatric MRICognitiveNo554
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.