Table 1.

Demographic, neurocognitive, and neuroimaging task performance measures

DescriptionCognitive process(es)Performance
measure(s)
Data fileVariable name(s)Percent missingPercent outliers
DemographicsAge in monthsabcddemo01interview_age0.020
Sexabcddemo01sex0.070
Autism, epilepsyabcd_screen01scrn_asd, scrn_epls0
Family IDacspsw03rel_family_id00
Site IDabcd_lt01site_id_l00
Scanner IDabcd_mri01mri_info_deviceserialnumber1.01
Neurocognitive batteryNIH toolbox cognition batteryWorking memoryList Sorting Working Memory Test ussabcd_tbss01nihtbx_list_uncorrected1.711.23
LanguagePicture Vocabulary Test ussabcd_tbss01nihtbx_picvocab_uncorrected1.321.76
Cognitive control, attentionFlanker Test ussabcd_tbss01nihtbx_flanker_uncorrected1.372.67
Flexible thinkingDimensional Change Card Sort Test ussabcd_tbss01nihtbx_cardsort_uncorrected1.352.94
Processing speedPattern Comparison Processing Speed Test ussabcd_tbss01nihtbx_pattern_uncorrected1.510.81
Visuospatial sequencing, memoryPicture Sequence Memory Test ussabcd_tbss01nihtbx_picture_uncorrected1.400.59
ReadingOral Reading Recognition Test ussabcd_tbss01nihtbx_reading_uncorrected1.422.75
Matrix reasoning taskFluid reasoningWISC-V matrix reasoning total scaled scoreabcd_ps01pea_wiscv_tss2.181.40
Rey auditory verbal learning test (RAVLT)Learning, memoryTotal correct on immediate and delayed recall trialsabcd_ps01pea_ravlt_sd_trial_vi_tc, pea_ravlt_ld_trial_vii_tc1.87
2.31
1.95
1.68
Intertemporal Cash Choice TaskDelay of gratificationChoice of smaller-sooner or larger-later rewardcct01cash_choice_task1.830
Little Man TaskMental rotationEfficiency ratio (% accuracy ÷ mean correct-trial RT)lmtp201lmt_scr_efficiency2.851.49
fMRI tasksEmotional n-back (EN-back) taskMemory, emotion regulation% correct on 0-back and2-back blocksabcd_mri nback02tfmri_nb_all_beh_c0b_rate, tfmri_nb_all_beh_c2b_rate20.08
20.08
3.19
3.19
Post-scan EN-back stimulirecognition memory testMemorySensitivity (d')mribrec02Mean of tfmri_rec_all_beh_posf_dpr, tfmri_rec_all_beh_neutf_dp, tfmri_rec_all_beh_negf_dp, tfmri_rec_all_beh_place_dp24.241.41
Stop-signal task (SST)Impulsivity–1*stop-signal RTabcd_sst02tfmri_sst_all_beh_total_meanrt18.972.51
Monetary incentive delay (MID) taskReward processingMean earningsabcd_mid02Mean of tfmri_mid_r1_beh_t_earnings, tfmri_mid_r2_beh_t_earnings17.261.95
  • Data were acquired from publicly available ABCD data release 2.0.1 (DOI 10.15154/1504041). Percent missing values represent the percentage of values missing in the full sample of 11,537 children meeting inclusion criteria, although note that recovery of missing data are ongoing. Percent outlier values represent the percentage of data values more than 2.5 SDs from the group mean. uss = uncorrected standard score.