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NIMH Data Archive
NDA ABCD CCF OAI NIAAADA AMP SCZ HEAL

Quotient ADHD Test

2 Shared Subjects

Previously MMAT. Infrared motion track quantifies head micromovements for 15 min cont. perform. task w/ target & non-target stimuli defined by P. Green/R. Cowen Inst. for Ped. Neuroscience, Child Study Centre, New York University Langone Medical Centre
Clinical Assessments
ADHD
07/15/2010
quotient01
07/15/2010
View Change History
01
Definition
Submission Template
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0::1440 Age 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.
Query mmat_ver Float Recommended mmat version
Query rprtgenver Float Recommended Report Generater version
Query reflectors Integer Recommended number of reflectors 0 :: 3
Query mmperuevent_szeref Integer Recommended a new unique event begins when this amount of distance is moved. 0 :: 1000
camrastr String 200 Recommended Camera version
mtsmodel String 200 Recommended motion tracking system model
Query resa Integer Recommended motion trasking system version 0 :: 100
Query resb Integer Recommended dummy variable for future description of MTS version 0 :: 100
Query framesa_percent Float Recommended percentage of time reflector is detected within frame 0 :: 100
Query reflectorsa_percent Float Recommended percentage of time reflector is detected 0 :: 100
Query cptacc_percent Float Recommended Percentage of correct responses to both the targets and non-targets 0 :: 100
Query cpterrom_percent Float Recommended Percentage of time the patient failed to respond to the target. Omission errors measure the patient's level of distraction and/or degree of inattention 0 :: 100
Query cpterrcom_percent Float Recommended Percentage of incorrect responses made to the non-targets. Commission errors are a measure of the patient's impulsivity or inability to inhibit a response 0 :: 100
Query cptlatmillisecond Integer Recommended Mean reaction time to respond to a target 0 :: 400
Query cptvar Integer Recommended Variation (standard deviation) in response times to the correct target. High levels of variability indicate that the patient is inconsistent in the task performance 0 :: 1000
Query cptcov Integer Recommended Variability that is adjusted to take into account difference in response latency. (COV = (100 * Variability) / Latency). This is a more stringent measure of response consistency. 0 :: 100
Query headimobdur Float Recommended Average time not moving greater than 1 mm - based on head reflector 0 :: 5000
Query headmovmnts Integer Recommended Average number of position changes >1 mm - based on head relfector 0 :: 10000
Query headdispl Float Recommended Total distance traveled by the head reflector 0 :: 50
Query headarea Integer Recommended Two-dimensional space in which the head reflector moved 0 :: 2000
Query headspccmplx Float Recommended Describes the complexity of the movement path. Low spatial complexity values would indicate simple/back-and-forth movements 1 :: 2
Query headtmpscl Float Recommended Frequency of movement with values from 0 to 1. Infrequent movements with long periods of inactivity yield values close to 0. Incessant movement produces values close to 1. 0 :: 1
Query lshinimobdur Float Recommended Average time not moving greater than 1 mm - based on left shin reflector 0 :: 5000 Not available for child data
Query lshinmovmnts Integer Recommended Average number of position changes >1 mm - based on left shin relfector 0 :: 10000 Not available for child data
Query lshindispl Float Recommended Total distance traveled by the left shin reflector 0 :: 50 Not available for child data
Query lshinarea Integer Recommended Two-dimensional space in which the left shin reflector moved 0 :: 2000 Not available for child data
Query lshinspccmplx Float Recommended Describes the complexity of the movement path. Low spatial complexity values would indicate simple/back-and-forth movements 1 :: 2 Not available for child data
Query lshintmpscl Float Recommended Frequency of movement with values from 0 to 1. Infrequent movements with long periods of inactivity yield values close to 0. Incessant movement produces values close to 1. 0 :: 1 Not available for child data
Query rshinimobdur Float Recommended Average time not moving greater than 1 mm - based on right shin reflector 0 :: 5000 Not available for child data
Query rshinmovmnts Integer Recommended Average number of position changes >1 mm - based on right shin relfector 0 :: 10000 Not available for child data
Query rshindispl Float Recommended Total distance traveled by the right shin reflector 0 :: 50 Not available for child data
Query rshinarea Integer Recommended Two-dimensional space in which the right shin reflector moved 0 :: 2000 Not available for child data
Query rshinspccmplx Float Recommended Describes the complexity of the movement path. Low spatial complexity values would indicate simple/back-and-forth movements 1 :: 2 Not available for child data
Query rshintmpscl Float Recommended Frequency of movement with values from 0 to 1. Infrequent movements with long periods of inactivity yield values close to 0. Incessant movement produces values close to 1. 0 :: 1 Not available for child data
Query attnstates String 200 Recommended Describes the attention states of the participant throughout the task.
Query changes Integer Recommended Count of the number of attention state shifts during the test. 0 :: 200
Query att_ot Float Recommended Percent of the time patient is attentive/on task, i.e., hits many targets and few non-targets 0 :: 100
Query dist Float Recommended Percent of the time patient is distracted - misses some targets and hits some non-targets with accuracy better than chance 0 :: 100
Query impl Float Recommended Percent of the time patient is impulsive hits many targets and some non-targets 0 :: 100
Query rand Float Recommended Percent of the time patient exhibits random behavior (hits most targets and non-targets with accuaracy about as good as chance. 0 :: 100
Query min Float Recommended Percent of time patient misses most targets and non-targets with accuracy about as good a chance 0 :: 100
Query cont Float Recommended Percent of time patient does significantly worse than chance 0 :: 100
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.

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