• measure Zygosity (DNA)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YS_3 YS_5 YS_7 YS_10 YS_12 YS_DHBQ14 YS_DHBQ16 YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18 YS_TRIP age 1-2 YS_TRIP age 3 YS_TRIP age 4 YS_TRIP age 5 YS_TRIP age 7 YS_TRIP age 10 YS_TRIP age 12
     
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    Zygosity typing based on micro-satellite markers, single nucleotide polymorphisms (SNP), or variable number (short) tandem repeats (VNTRs).
    Created June 5, 2024 Updated June 20, 2024
  • measure Blood sugar markers

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
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    Blood sugar markers, for instance Glucose, Insulin, and C-peptide, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 Updated June 20, 2024
  • measure Dipstick

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
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    Urinary dipstick (Siemens, Marburg, Germany) was applied to the first thaw of the urine samples either by dipping in the residual urine volume after aliquoting or by dropping urine on the dipstick to screen for signs of infections in the urine and to measure leukocytes, nitrite, proteins, glucose, and blood presence in the urine.
    Created June 5, 2024 Updated June 20, 2024
  • measure Inflammation markers

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
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    Inflammation markers, for instance C-reactive protein (CRP), Lymphocytes, Neopterin, Immunoglobulin E (IgE), Immunoglobulin G (IgG), and tissue Transglutaminase Immunoglobulin A (tTg-IgA), measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 Updated June 20, 2024
  • measure Oxidative stress markers

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
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    Oxidative stress markers, including Oxidized DNA/RNA, Total Antioxidant Capacity, and Thiobarbituric acid reactive substances (malondialdehyde), were measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 Updated June 20, 2024
  • measure Viral infections

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3
     
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    Viral and parasitic infection loads, for instance Influenza A, Influenza B, Herpes Simplex Virus 1 (HSV1), Herpes Simplex Virus 2 (HSV2), Toxoplasma Gondii, Cytomegalovirus (CMV), Epstein-Barr Virus (EBV), and Procalcitonin, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created June 5, 2024 Updated June 20, 2024
  • measure Urine sample

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ACTION BB1_1 YC_ACTION BB1_2 YC_ACTION BB2 YC_ACTION - BB3 YC_BS1 YC_BS2 YC_BS3 YE_COG18
     
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    First-morning, spot, or 24 hour urine sample.
    Created June 5, 2024 Updated June 20, 2024
  • measure Amsterdam Neuropsychological Tasks (ANT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF1 YE_ATTEF2
     
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    The Amsterdam Neuropsychological Tasks (ANT) are computerized executive functioning tasks. The ANTs measure a diverse range of executive functions, including attention, working memory, and inhibition.
    Created June 5, 2024 Updated June 20, 2024
  • measure Gaze Cueing experiment

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Eyetracking
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    The Gaze Cuing experiment is an eye-tracking task that measures a participant's sensitivity to another person's gaze direction as a possible cue to predict the location of a next event. Sensitivity to gaze direction is taken as a marker of social competence. In the Social Gaze Task, children see a face with direct gaze, followed by an eye gaze shift to...
    Created June 5, 2024 Updated June 20, 2024
  • measure Hair sample

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Baby and Child  30 weeks 10 months 3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    A hair sample is a collection of hair strands, which are usually cut from a person's head. Hair samples usually contain hair that has grown over the last 12 months.
    Created June 5, 2024 Updated June 20, 2024
  • measure Length, head circumference, weight and vaccinations

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Baby and Child  10 months 3 years 6 years
     
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    Information about height, head circumference, weight and vaccinations was obtained from the growth booklet (Groeiboekje), a booklet in which child development is assessed by a public health and consultation bureau.
    Created June 5, 2024 Updated June 20, 2024
  • measure Child Gap Overlap Task - Antisaccade

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Eyetracking
    Available measurements:
    Baby and Child  6 years

    Child and Adolescent  9 years 12 years
     
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    The Gap-overlap task is a gaze contingent paradigm that measures visual attention shifting between a central and a peripheral stimulus. This is thought to be a key process underlying behavioral control. The Gap-overlap task contains three conditions; i) Gap, in which the central stimulus disappears 200ms before the appearance of the peripheral target; ii)...
    Created June 5, 2024 Updated June 20, 2024
  • measure Wechsler Preschool and Primary Scale of Intelligence (WPPSI-III-NL)

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Baby and Child  6 years
     
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    The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is an IQ test for children 2.5 to 7.25 years of age to determine general intelligence. It uses subtests to determine a child's Verbal and Performance IQ scores, as well as processing speed.
    Created June 5, 2024 Updated June 20, 2024
  • measure Child Gap Overlap Task - Prosaccade

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Eyetracking
    Available measurements:
    Baby and Child  6 years

    Child and Adolescent  9 years 12 years
     
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    The Gap-overlap task is a gaze contingent paradigm that measures visual attention shifting between a central and a peripheral stimulus. This is thought to be a key process underlying behavioral control. The Gap-overlap task contains three conditions; i) Gap, in which the central stimulus disappears 200ms before the appearance of the peripheral target; ii)...
    Created June 5, 2024 Updated June 20, 2024
  • measure EEG Face House

    Study:YOUth
    Mode of collection: MeasurementsAndTests    EEG
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years
     
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    In the Face-House task, infants or children up to the age of 6 passively watch pictures of faces with a neutral expression (12 faces repeated four times) and pictures of typical Dutch houses (also 12 x 4) while their Electrocardiography (EEG) is measured. This task lasts approximately 3-4 minutes.
    Created June 5, 2024 Updated June 20, 2024
  • measure Length, weight, head circumference

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Anthropometrics/Body measures
    Available measurements:
    Baby and Child  3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    The body measures height, head circumference, and weight were measured by the experimenter in centimeters and kilos respectively. Participants were asked to take off any shoes and large vests and sweaters that could affect these measures.
    Created June 5, 2024 Updated June 20, 2024
  • measure Buccal swab

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Baby and Child  20 weeks 5 months 10 months 3 years 6 years

    Child and Adolescent  9 years 12 years
     
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    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created June 5, 2024 Updated June 20, 2024
  • measure Theory of Mind (TOM) scales

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Baby and Child  6 years
     
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    The internationally widely used Theory of Mind Scale (ToM Scale; Wellman & Liu, 2004) is a measure of social competence that assesses the ability of young children to attribute mental states (e.g. beliefs, goals, desires, emotions) to other people, and to understand and predict their behavior as a function of those states. The ToM Scale consists of...
    Created June 5, 2024 Updated June 20, 2024
  • measure Infant Face Popout

    Study:YOUth
    Mode of collection: MeasurementsAndTests    Eyetracking
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years
     
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    Infant Face Popout is a shortened version of the face-pop out experiment (Gliga et al, 2009 Exp1; Elsabbagh et al., 2013), a free viewing experiment in which children are presented with multiple five-item arrays (always: 1. Human face; 2. Car; 3. Mobile phone; 4. Bird; 5; Face-shaped noise figure). It tests whether children automatically orient to faces...
    Created June 5, 2024 Updated June 20, 2024
  • measure EEG Coherence

    Study:YOUth
    Mode of collection: MeasurementsAndTests    EEG
    Available measurements:
    Baby and Child  5 months 10 months 3 years 6 years
     
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    In the EEG Cohorence task, young children passively watch 60-second video clips depicting singing women (created by Sabine Hunnius and colleagues) or moving toys (used earlier by Jones et al., 2015) while Electrocardiography (EEG) is measured. The task lasts approximately 6 minutes, where both sets of videos last 60 seconds.
    Created June 5, 2024 Updated June 20, 2024
You can also access this registry using the API (see API Docs).