ODISSEI (Open Data Infrastructure for Social Science and Economic Innovations)
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Postpartum Bonding Scale (PBS)
The Postpartum Bonding Scale (PBS) is an assessment of mother-infant relationship disorders. It includes questions on rejection, pathological anger, infant-focused anxiety, and incipient abuse
Substance Use
Substance Use (SU) assesses self-reported frequency of alcohol, cigarettes, and/or drugs consumption
Infant vagal modulation (electrocardiography)
Variations in heart rate influenced by the vagus nerve were assessed via electrocardiography (ECG)
Pregnancies & miscarriages
Pregnancies and Miscarriages contains questions about getting pregnant, including the use of hormone preparations or assisted reproductive technologies, and miscarriages
Tryptophan
Tryptophan is an amino acid that is used in the biosynthesis of proteins such as Serotonin and Melatonin. It was assessed through a blood sample using traditional enzymatic methods such as Enzyme Immuno Assay (EIA)
Home situation and demographics
General information about the home situation and lifestyle, and demographic information including gender, age, child gender, child age, etc. were assessed
Looking While Listening
The Looking While Listening task is an eye-tracking paradigm. It is a simplified version of a visual world paradigm, in which every trial presents pairs of familiar images/objects of roughly the same size (for example, a chair and a bath), accompanied by a pre-recorded Dutch sentence that asks the participant to look at one of these images (e.g., where is a chair?). This paradigm was developed by Anne Fernald (Fernald et al., 2008)
Language and stuttering
Language development and stuttering contains questions about the child's speech development and the parent's and child's stuttering. Questions include, for example, "Have you ever stuttered?", "Did the stuttering bother you?", "Has your child ever stuttered?", "Does the child slowly repeat a sound from a sentence?", and "Does the child prolong a sound within a word?"
Delay Discounting - hypothetical
The Delay Discounting task is the most widely used paradigm to measure the capacity to wait for a hypothetical monetary reward in children between 8-18 years old. A child is given a series of option between a variable immediate monetary reward and 10 Euros after a certain delay. The delay of the 10 Euro reward varies between 2, 30, 180, or 365 days. Each trail starts with the question if the child would rather have a specific immediate reward now, or 10 Euros after a specific delay. Based on the choices of the child, the task determines an indifference point per delay. That is, when the immediate reward has the same subjective value as the 10 Euros at that delay. The different delays are presented in random order, as are the immediate rewards. Based on the decision of the child, the immediate reward is adapted on the next trial of that specific delay following a mathematical model until the indifference point is reached (Richards et al., 1999). The total number of trials depends on the behavior of the child. The task lasts 5 minutes on average
Pregnancy history - This pregnancy
Pregnancy history - This pregnancy assesses the course of a current pregnancy (at enrollement) and subsequent child delivery. It includes items on the last period, height, and weight, whether pregnancy was planned, contraceptive use, infertility treatment, whether blood type matches with biological father, other pregnancies with same biological fathers, and complications, physical complaints, impairments and illness during pregnancy. Questions about the delivery include who supervised the delivery, the place of delivery, and the degree of satisfaction with the childbirth