• measure Buccal swab

    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 YC_DSC YE_FITNSS YE_ATTEF1 YE_ATTEF2 YE_ATTEF3 YC_ADHMRI YE_COG18
     
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    Buccal swabs are collections of buccal cell scrapings obtained by rubbing buds along the inside of the mouth.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Stroop color-word task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_ATTEF2 YC_ADHMRI YE_COG18
     
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    The Stroop color-word task consists of pairs of conflicting word and color stimuli, both being inherent aspects of the same symbols, presented simultaneously, for example a name of one color printed in the ink of another color. The difference in time for reading the words printed in colors and the same words printed in black is the measure of the...
    Created October 17, 2024 • Updated October 20, 2024

  • measure NMR metabolomics

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
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    Untargeted proton nuclear magnetic resonance (1H-NMR) metabolomics platform.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Genotyping (array)

    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 YC_DSC YE_FITNSS YC_ADHMRI YE_COG18
     
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    Assessment of single nucleotide polymorphisms (SNPs) as obtained through genotyping arrays.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Verbal Fluency Test

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS2 YE_COG18
     
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    The Verbal Fluency Test assesses how many words that belong to the same predetermined category participants can produce in a given time (usually 60 seconds). This category can be semantic, specified objects such as animals or fruits, or phonological, words beginning with a specified letter such as p.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Skinfold thickness

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
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    Skinfold thickness is an assessment of body fat which can noninvasively and reliably be measured at various sites of the body using a skinfold caliper. Based on measurements at multiple sites of the body, the total body fat and contribution of fat to the body mass can be estimated.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart beat perception

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    In Heart beat perception, participants were asked to judge their own heart rate by introspective visceral awareness, i.e. without palpitating the arterial pulse signal at wrist or neck. They judged their mean heart rate per minute over three short periods (25, 35 and 45 seconds).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Mental Rotations Test (MRT)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YE_ATTEF3
     
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    In the Mental Rotations Test (MRT), participants are asked to compare two-dimensional drawings and three- dimensional geometric figures in order to assess spatial processing.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Spatial N-back Task

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_COG18
     
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    The Spatial N-back Task assesses visuospatial working memory. In the task, participants are instructed to remember and respond to the location of a stimulus on the screen throughout the task, either directly following the stimulus, or with a delay of one or more stimuli.
    Created October 17, 2024 • Updated October 20, 2024

  • measure VU University Ambulatory Monitoring System (VU-AMS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS YE_ATTEF3 YE_COG18
     
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    The VU University Ambulatory Monitoring System (VU-AMS) enables non-invasive ambulatory measurement of the autonomic nervous system for research purposes and can be used to measure: Heart Rate/Inter beat Interval (IBI), Heart Rate Variability (SDNN, RMSSD, IBI power spectrum: HF, LF), Respiratory Sinus Arrhythmia (RSA), Pre-Ejection Period (PEP), Left...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Raven's Progressive Matrices Test (RPM)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YE_ATTEF3
     
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    Raven's Progressive Matrices (often referred to simply as Raven's Matrices or RPM) is a non-verbal test used to measure general intelligence and abstract reasoning. It is one of the most common tests administered to both groups and individuals ranging from 5-years-olds to the elderly. It consists of 60 multiple choice questions, listed in order of...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Saliva sample

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
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    Saliva was collected using a cotton swab or a collection device, such as a tube or container (passive drool).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Steroid hormones

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YC_BS2 YC_BS3 YE_ATTEF2 YE_COG12 YE_COG18
     
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    Steroid hormones, for instance Testosterone, Estrogen, Dehydroepiandrosterone (DHEA), and Cortisol, measured with traditional enzymatic tests, such as Enzyme-Linked Immunosorbent Assays (ELISA).
    Created October 17, 2024 • Updated October 20, 2024

  • measure Reading the Mind in the Eyes Test (RMET)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS1 YE_COG18
     
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    The Reading the Mind in the Eyes Test (RMET) assesses the ability to recognize complex mental states as expressed by human eyes. Participants pick one of four options (e.g. puzzled, nervous, insisting or contemplative) which they think best describes what the person in each photograph is thinking or feeling.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Handgrip

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    Handgrip strength in both hands was measured with a dynamometer (Baseline Digital Smedley Hand dynamometer, Fabrication Enterprises Inc., USA) with one arm at the side of the body and the elbow at a 90 degree angle.
    Created October 17, 2024 • Updated October 20, 2024

  • measure COSMED

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_FITNSS
     
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    COSMED consists of recorded breath-by-breath oxygen uptake (VO2) and carbon dioxide production (VCO2) during exercise measured with a telemetric gas exchange system (Cosmed K4b2, Cosmed Benelux, Nieuwegein, The Netherlands).
    Created October 17, 2024 • Updated October 20, 2024

  • 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 October 17, 2024 • Updated October 20, 2024

  • measure LC-MS lipidomics

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YE_COG18
     
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    Liquid chromatography mass spectrometry (LC-MS) platform targeting lipid species.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Wechsler Adult Intelligence Scale (WAIS)

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Behavioral/cognitive task
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_COG18
     
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    The Wechsler Adult Intelligence Scale (WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents. Most versions contain sub tests that represent the following components of intelligence: Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), Working Memory Index (WMI), Processing Speed Index...
    Created October 17, 2024 • Updated October 20, 2024

  • measure Heart rate

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_BS3 YE_FITNSS YE_ATTEF3 YE_COG18
     
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    Heart rate is the number of times a heart beats per minute and normally ranges between 60 and 100 times for adults. Heart rate variability is the time fluctuation between heart beats.
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).