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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



Reset Password

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.

Warning Notice

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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Data Structures with shared data
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Emotional ERP Task Evaluation Form



Download Definition as
Download Submission Template as
Element NameData TypeSizeRequiredDescriptionValue RangeNotesAliases
subjectkeyGUIDRequiredThe NDAR Global Unique Identifier (GUID) for research subjectNDAR*
src_subject_idString20RequiredSubject ID how it's defined in lab/project
interview_dateDateRequiredDate on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYYRequired fielddate_eerp
interview_ageIntegerRequiredAge in months at the time of the interview/test/sampling/imaging.0 :: 1260Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sexString20RequiredSex of the subjectM;FM = Male; F = Femalegender
plepic_1IntegerRecommendedPleasantness- picture 11::91=Most Happy; 9=Most unhappy
plepic_2IntegerRecommendedPleasantness- picture 21::91=Most Happy; 9=Most unhappy
plepic_3IntegerRecommendedPleasantness- picture 31::91=Most Happy; 9=Most unhappy
plepic_4IntegerRecommendedPleasantness- picture 41::91=Most Happy; 9=Most unhappy
plepic_5IntegerRecommendedPleasantness- picture 51::91=Most Happy; 9=Most unhappy
plepic_6IntegerRecommendedPleasantness- picture 61::91=Most Happy; 9=Most unhappy
plepic_7IntegerRecommendedPleasantness- picture 71::91=Most Happy; 9=Most unhappy
plepic_8IntegerRecommendedPleasantness- picture 81::91=Most Happy; 9=Most unhappy
plepic_9IntegerRecommendedPleasantness- picture 91::91=Most Happy; 9=Most unhappy
plepic_10IntegerRecommendedPleasantness- picture 101::91=Most Happy; 9=Most unhappy
plepic_11IntegerRecommendedPleasantness- picture 111::91=Most Happy; 9=Most unhappy
plepic_12IntegerRecommendedPleasantness- picture 121::91=Most Happy; 9=Most unhappy
plepic_13IntegerRecommendedPleasantness- picture 131::91=Most Happy; 9=Most unhappy
plepic_14IntegerRecommendedPleasantness- picture 141::91=Most Happy; 9=Most unhappy
plepic_15IntegerRecommendedPleasantness- picture 151::91=Most Happy; 9=Most unhappy
plepic_16IntegerRecommendedPleasantness- picture 161::91=Most Happy; 9=Most unhappy
plepic_17IntegerRecommendedPleasantness- picture 171::91=Most Happy; 9=Most unhappy
plepic_18IntegerRecommendedPleasantness- picture 181::91=Most Happy; 9=Most unhappy
plepic_19IntegerRecommendedPleasantness- picture 191::91=Most Happy; 9=Most unhappy
plepic_20IntegerRecommendedPleasantness- picture 201::91=Most Happy; 9=Most unhappy
plepic_21IntegerRecommendedPleasantness- picture 211::91=Most Happy; 9=Most unhappy
plepic_22IntegerRecommendedPleasantness- picture 221::91=Most Happy; 9=Most unhappy
plepic_23IntegerRecommendedPleasantness- picture 231::91=Most Happy; 9=Most unhappy
plepic_24IntegerRecommendedPleasantness- picture 241::91=Most Happy; 9=Most unhappy
plepic_25IntegerRecommendedPleasantness- picture 251::91=Most Happy; 9=Most unhappy
plepic_26IntegerRecommendedPleasantness- picture 261::91=Most Happy; 9=Most unhappy
plepic_27IntegerRecommendedPleasantness- picture 271::91=Most Happy; 9=Most unhappy
plepic_28IntegerRecommendedPleasantness- picture 281::91=Most Happy; 9=Most unhappy
plepic_29IntegerRecommendedPleasantness- picture 291::91=Most Happy; 9=Most unhappy
plepic_30IntegerRecommendedPleasantness- picture 301::91=Most Happy; 9=Most unhappy
plepic_31IntegerRecommendedPleasantness- picture 311::91=Most Happy; 9=Most unhappy
plepic_32IntegerRecommendedPleasantness- picture 321::91=Most Happy; 9=Most unhappy
plepic_33IntegerRecommendedPleasantness- picture 331::91=Most Happy; 9=Most unhappy
plepic_34IntegerRecommendedPleasantness- picture 341::91=Most Happy; 9=Most unhappy
plepic_35IntegerRecommendedPleasantness- picture 351::91=Most Happy; 9=Most unhappy
plepic_36IntegerRecommendedPleasantness- picture 361::91=Most Happy; 9=Most unhappy
plepic_37IntegerRecommendedPleasantness- picture 371::91=Most Happy; 9=Most unhappy
plepic_38IntegerRecommendedPleasantness- picture 381::91=Most Happy; 9=Most unhappy
plepic_39IntegerRecommendedPleasantness- picture 391::91=Most Happy; 9=Most unhappy
plepic_40IntegerRecommendedPleasantness- picture 401::91=Most Happy; 9=Most unhappy
plepic_41IntegerRecommendedPleasantness- picture 411::91=Most Happy; 9=Most unhappy
plepic_42IntegerRecommendedPleasantness- picture 421::91=Most Happy; 9=Most unhappy
plepic_43IntegerRecommendedPleasantness- picture 431::91=Most Happy; 9=Most unhappy
plepic_44IntegerRecommendedPleasantness- picture 441::91=Most Happy; 9=Most unhappy
plepic_45IntegerRecommendedPleasantness- picture 451::91=Most Happy; 9=Most unhappy
plepic_46IntegerRecommendedPleasantness- picture 461::91=Most Happy; 9=Most unhappy
plepic_47IntegerRecommendedPleasantness- picture 471::91=Most Happy; 9=Most unhappy
plepic_48IntegerRecommendedPleasantness- picture 481::91=Most Happy; 9=Most unhappy
plepic_49IntegerRecommendedPleasantness- picture 491::91=Most Happy; 9=Most unhappy
plepic_50IntegerRecommendedPleasantness- picture 501::91=Most Happy; 9=Most unhappy
plepic_51IntegerRecommendedPleasantness- picture 511::91=Most Happy; 9=Most unhappy
plepic_52IntegerRecommendedPleasantness- picture 521::91=Most Happy; 9=Most unhappy
plepic_53IntegerRecommendedPleasantness- picture 531::91=Most Happy; 9=Most unhappy
plepic_54IntegerRecommendedPleasantness- picture 541::91=Most Happy; 9=Most unhappy
plepic_55IntegerRecommendedPleasantness- picture 551::91=Most Happy; 9=Most unhappy
plepic_56IntegerRecommendedPleasantness- picture 561::91=Most Happy; 9=Most unhappy
plepic_57IntegerRecommendedPleasantness- picture 571::91=Most Happy; 9=Most unhappy
plepic_58IntegerRecommendedPleasantness- picture 581::91=Most Happy; 9=Most unhappy
plepic_59IntegerRecommendedPleasantness- picture 591::91=Most Happy; 9=Most unhappy
plepic_60IntegerRecommendedPleasantness- picture 601::91=Most Happy; 9=Most unhappy
aropic_1IntegerRecommendedArousal- picture 11::91=Most Excited; 9=Most Calm
aropic_2IntegerRecommendedArousal- picture 21::91=Most Excited; 9=Most Calm
aropic_3IntegerRecommendedArousal- picture 31::91=Most Excited; 9=Most Calm
aropic_4IntegerRecommendedArousal- picture 41::91=Most Excited; 9=Most Calm
aropic_5IntegerRecommendedArousal- picture 51::91=Most Excited; 9=Most Calm
aropic_6IntegerRecommendedArousal- picture 61::91=Most Excited; 9=Most Calm
aropic_7IntegerRecommendedArousal- picture 71::91=Most Excited; 9=Most Calm
aropic_8IntegerRecommendedArousal- picture 81::91=Most Excited; 9=Most Calm
aropic_9IntegerRecommendedArousal- picture 91::91=Most Excited; 9=Most Calm
aropic_10IntegerRecommendedArousal- picture 101::91=Most Excited; 9=Most Calm
aropic_11IntegerRecommendedArousal- picture 111::91=Most Excited; 9=Most Calm
aropic_12IntegerRecommendedArousal- picture 121::91=Most Excited; 9=Most Calm
aropic_13IntegerRecommendedArousal- picture 131::91=Most Excited; 9=Most Calm
aropic_14IntegerRecommendedArousal- picture 141::91=Most Excited; 9=Most Calm
aropic_15IntegerRecommendedArousal- picture 151::91=Most Excited; 9=Most Calm
aropic_16IntegerRecommendedArousal- picture 161::91=Most Excited; 9=Most Calm
aropic_17IntegerRecommendedArousal- picture 171::91=Most Excited; 9=Most Calm
aropic_18IntegerRecommendedArousal- picture 181::91=Most Excited; 9=Most Calm
aropic_19IntegerRecommendedArousal- picture 191::91=Most Excited; 9=Most Calm
aropic_20IntegerRecommendedArousal- picture 201::91=Most Excited; 9=Most Calm
aropic_21IntegerRecommendedArousal- picture 211::91=Most Excited; 9=Most Calm
aropic_22IntegerRecommendedArousal- picture 221::91=Most Excited; 9=Most Calm
aropic_23IntegerRecommendedArousal- picture 231::91=Most Excited; 9=Most Calm
aropic_24IntegerRecommendedArousal- picture 241::91=Most Excited; 9=Most Calm
aropic_25IntegerRecommendedArousal- picture 251::91=Most Excited; 9=Most Calm
aropic_26IntegerRecommendedArousal- picture 261::91=Most Excited; 9=Most Calm
aropic_27IntegerRecommendedArousal- picture 271::91=Most Excited; 9=Most Calm
aropic_28IntegerRecommendedArousal- picture 281::91=Most Excited; 9=Most Calm
aropic_29IntegerRecommendedArousal- picture 291::91=Most Excited; 9=Most Calm
aropic_30IntegerRecommendedArousal- picture 301::91=Most Excited; 9=Most Calm
aropic_31IntegerRecommendedArousal- picture 311::91=Most Excited; 9=Most Calm
aropic_32IntegerRecommendedArousal- picture 321::91=Most Excited; 9=Most Calm
aropic_33IntegerRecommendedArousal- picture 331::91=Most Excited; 9=Most Calm
aropic_34IntegerRecommendedArousal- picture 341::91=Most Excited; 9=Most Calm
aropic_35IntegerRecommendedArousal- picture 351::91=Most Excited; 9=Most Calm
aropic_36IntegerRecommendedArousal- picture 361::91=Most Excited; 9=Most Calm
aropic_37IntegerRecommendedArousal- picture 371::91=Most Excited; 9=Most Calm
aropic_38IntegerRecommendedArousal- picture 381::91=Most Excited; 9=Most Calm
aropic_39IntegerRecommendedArousal- picture 391::91=Most Excited; 9=Most Calm
aropic_40IntegerRecommendedArousal- picture 401::91=Most Excited; 9=Most Calm
aropic_41IntegerRecommendedArousal- picture 411::91=Most Excited; 9=Most Calm
aropic_42IntegerRecommendedArousal- picture 421::91=Most Excited; 9=Most Calm
aropic_43IntegerRecommendedArousal- picture 431::91=Most Excited; 9=Most Calm
aropic_44IntegerRecommendedArousal- picture 441::91=Most Excited; 9=Most Calm
aropic_45IntegerRecommendedArousal- picture 451::91=Most Excited; 9=Most Calm
aropic_46IntegerRecommendedArousal- picture 461::91=Most Excited; 9=Most Calm
aropic_47IntegerRecommendedArousal- picture 471::91=Most Excited; 9=Most Calm
aropic_48IntegerRecommendedArousal- picture 481::91=Most Excited; 9=Most Calm
aropic_49IntegerRecommendedArousal- picture 491::91=Most Excited; 9=Most Calm
aropic_50IntegerRecommendedArousal- picture 501::91=Most Excited; 9=Most Calm
aropic_51IntegerRecommendedArousal- picture 511::91=Most Excited; 9=Most Calm
aropic_52IntegerRecommendedArousal- picture 521::91=Most Excited; 9=Most Calm
aropic_53IntegerRecommendedArousal- picture 531::91=Most Excited; 9=Most Calm
aropic_54IntegerRecommendedArousal- picture 541::91=Most Excited; 9=Most Calm
aropic_55IntegerRecommendedArousal- picture 551::91=Most Excited; 9=Most Calm
aropic_56IntegerRecommendedArousal- picture 561::91=Most Excited; 9=Most Calm
aropic_57IntegerRecommendedArousal- picture 571::91=Most Excited; 9=Most Calm
aropic_58IntegerRecommendedArousal- picture 581::91=Most Excited; 9=Most Calm
aropic_59IntegerRecommendedArousal- picture 591::91=Most Excited; 9=Most Calm
aropic_60IntegerRecommendedArousal- picture 601::91=Most Excited; 9=Most Calm
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

  • Element Name: This is the standard element name
  • Data Type: Which type of data this element is, e.g. String, Float, File location.
  • Size: If applicable, the character limit of this element
  • Required: This column displays whether the element is Required for valid submissions, Recommended for valid submissions, Conditional on other elements, or Optional
  • Description: A basic description
  • Value Range: Which values can appear validly in this element (case sensitive for strings)
  • Notes: Expanded description or notes on coding of values
  • Aliases: A list of currently supported Aliases (alternate element names)
  • For valid elements with shared data, on the far left is a Filter button you can use to view a summary of shared data for that element and apply a query filter to your Cart based on selected value ranges

At the top of this page you can also:

  • Use the search bar to filter the elements displayed. This will not filter on the Size of Required columns
  • Download a copy of this definition in CSV format
  • Download a blank CSV submission template prepopulated with the correct structure header rows ready to fill with subject records and upload

Please email the The NDA Help Desk with any questions.

Distribution for DataStructure: eerp01 and Element:
Chart Help

Filters enable researchers to view the data shared in NDA before applying for access or for selecting specific data for download or NDA Study assignment. For those with access to NDA shared data, you may select specific values to be included by selecting an individual bar chart item or by selecting a range of values (e.g. interview_age) using the "Add Range" button. Note that not all elements have appropriately distinct values like comments and subjectkey and are not available for filtering. Additionally, item level detail is not always provided by the research community as indicated by the number of null values given.

Filters for multiple data elements within a structure are supported. Selections across multiple data structures will be supported in a future version of NDA.