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NIMH Data Archive
NDA ABCD CCF OAI NIAAADA AMP SCZ HEAL

Multimodal Continuous Performance Test – AX version

75 Shared Subjects

Cues are displayed on a screen and probes are played through the headphones
Neurosignal Recordings
Task Based
03/15/2016
ax_cpt01
06/12/2017
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 ursi
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.
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query overall_acc Float Recommended accuracy (reported as decimal) of responses for the entire task
Query overall_rt Float Recommended median reaction time for the entire task
Query overall_cnt_hit Integer Recommended Count of the correct responses across all tasks
Query overall_cnt_miss Integer Recommended Count of the number of times no response was detected across all tasks
Query overall_cnt_incorr Integer Recommended Count of the number of incorrect responses across all tasks
Query cue_a_acc Float Recommended accuracy of the responses to "A" cues (target cues)
Query cue_a_rt Float Recommended median reaction time for A cues
Query cue_a_cnt_hit Integer Recommended Number of responses to A cues
Query cue_a_cnt_miss Integer Recommended Number of missed A cues
Query cue_a_cnt_incorr Integer Recommended Number of inccorect responses to A cues
Query probe_ax_acc Float Recommended accuracy of X probes following A cues (IE target cue followed by the target probe)
Query probe_ax_rt Float Recommended Median reaction time to X probes following A cues
Query probe_ax_cnt_hit Integer Recommended count of correct responses to AX probes cpt_right_xa
Query probe_ax_cnt_miss Integer Recommended Count of missed AX probes cpt_missed_xa
Query probe_ax_cnt_incorr Integer Recommended Count of inccorect responses to AX probes cpt_wrong_xa
Query probe_ay_acc Float Recommended accuracy of Y probes following A cues (IE target cue followed by a non-target probe)
Query probe_ay_rt Float Recommended Median reaction time to Y probes following A cues
Query probe_ay_cnt_hit Integer Recommended count of correct responses to AY probes
Query probe_ay_cnt_miss Integer Recommended Count of missed AY probes
Query probe_ay_cnt_incorr Integer Recommended Count of inccorect responses to AY probes
Query cue_b_acc Float Recommended accuracy of the responses to "B" cues (non-target cues)
Query cue_b_rt Float Recommended median reaction time for B cues
Query cue_b_cnt_hit Integer Recommended Number of responses to B cues
Query cue_b_cnt_miss Integer Recommended Number of missed B cues
Query cue_b_cnt_incorr Integer Recommended Number of inccorect responses to B cues
Query probe_bx_acc Float Recommended accuracy of X probes following B cues (IE non-target cue followed by target probe)
Query probe_bx_rt Float Recommended Median reaction time to X probes following B cues
Query probe_bx_cnt_hit Integer Recommended count of correct responses to BX probes
Query probe_bx_cnt_miss Integer Recommended Count of missed BX probes
Query probe_bx_cnt_incorr Integer Recommended Count of inccorect responses to BX probes
Query probe_by_acc Float Recommended accuracy of Y probes following B cues (IE non-target cue followed by non-target probe)
Query probe_by_rt Float Recommended Median reaction time to Y probes following B cues
Query probe_by_cnt_hit Integer Recommended count of correct responses to BY probes
Query probe_by_cnt_miss Integer Recommended Count of missed BY probes
Query probe_by_cnt_incorr Integer Recommended Count of inccorect responses to BY probes
Query cpt_absolute_percent_xa Integer Recommended AX absolute percent
Query cpt_relative_percent_xa Float Recommended AX relative percent
Query visit String 60 Recommended Visit name assessment_number
version_form String 121 Recommended Form used/assessment name
Query nc_dp Float Recommended CPT d Prime Score dprime
Query completed Integer Recommended Checks if completed 0::3 0=No; 1=Yes; 2=Yes, lost; 3=Unverified completed_ax_cpt
Query mean_rt Float Recommended Mean RT across all trials - BEFORE FILTER
Query std_pop Float Recommended Standard Deviation of RT
Query std_3 Float Recommended 3 Standard Deviations of RT
Query lo_std Float Recommended Mean RT - 3 SDs
Query hi_std Float Recommended Mean RT + 3 SDs
Query ax_count Integer Recommended Total AX trials completed
Query ay_count Integer Recommended Total AY trials completed
Query bx_count Integer Recommended Total BX trials completed
Query by_count Integer Recommended Total BY trials completed
Query ax_rt Float Recommended AX Correct RT probe Trials
Query ay_rt Float Recommended AY Correct RT probe Trials
Query bx_rt Float Recommended BX Correct RT probe Trials
Query by_rt Float Recommended BY Correct RT probe Trials
pbsi_errorrate String 10 Recommended PBSI for Errors
pbsi_rt String 10 Recommended PBSI for RT
pbsi_sum String 10 Recommended PBSI Errors + RT
Query zpbsi_rt Float Recommended Zscore(PBSI_RT)
Query zpbsi_sum Float Recommended Zscore(PBSI_SUM)
Query erp_ax Float Recommended ERPs for AX trials
Query erp_ay Float Recommended ERPs for AY trials
Query erp_bx Float Recommended ERPs for BX trials
Query erp_by Float Recommended ERPs for BY trials
Query a_cue_bias Float Recommended AX and AY signal detection bias
bx_int_rt String 50 Recommended RT: BX and BY performance (behavioral interference)
bx_int_acc String 50 Recommended Accuracy: BX and BY performance (behavioral interference)
Query pb_index_rt Float Recommended RT: Proactive Behavioral Index
Query pb_index_acc Float Recommended Accuracy: Proactive Behavioral Index
Query pb_index_sum Float Recommended Sum of RT + Accuracy: Proactive Behavioral Index
axcpt_bybxmrt Float Recommended Median BY Reaction Time / Median BX Reaction Time Median time between a probe and participant corresponding response on BY/BX trials
axcpt_mce Float Recommended AX-Continous Performance Task - Memory Capacity Estimation
axcpt_ap Float Recommended AX-Continous Performance Task - Attention Parameter
axcpt_ayaxmrt Float Recommended Median AY Reaction Time / Median AX Reaction Time Median time between a probe and participant corresponding response on AY/AX trials
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

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