Baby cry recognition is independent of motherhood but improved by experience and exposure
Data files
Feb 06, 2020 version files 182.16 KB
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DATA_experiment_1.xlsx
33.72 KB
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DATA_experiment_2.xlsx
72.97 KB
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DATA_experiment_3.xlsx
75.47 KB
Abstract
Usage notes
Supporting dataset for Experiment 1: Individual recognition of newborns from their cries in postpartum mothers
Experiment 1 aimed at evaluating postpartum mothers’ ability to recognize their own baby from their cries. More specifically, we tested whether this ability was influenced by their baby’s age at the time of testing, their baby’s age at the time of recording, their own age, their parity status, and the testing stage.
List of variables :
MumID = mother’s identity (included in the model as a random factor)
AgeMum = participant’s age at the time of the experiment (in years)
Parity = participant’s number of offspring at the time of the experiment (coded as “P1” = no previous offspring, “P2” = has already had 1 offspring, “P3” = has already had 2 or more offspring)
Baby = baby’s category coded as “own” vs. “stranger” baby
AgeTest = own baby’s age at the time of the experiment (in decimal hours)
AgeRec = own baby’s age at the time of stimuli recording (in decimal hours)
Test = test number coded as “Test1” vs. “Test2” (i.e. first versus second series of 15 cries)
Response = mothers’ answers, at whether each cry belonged to their offspring (1 = “yes”) or not (0 = “no”)
Supporting dataset for Experiment 2: Individual recognition of newborns from their cries in non-parents
Experiment 2 aimed at evaluating non-parents’ ability to recognize a given experimentally “assigned” baby from their cries. More specifically, we tested whether this ability was affected by their sex, their age, their prior experience at caring for babies, their current exposure to babies, and the testing stage.
List of variables :
ParticipantID = tested participant’s identity (included in the model as a random factor).
Sex = participant’s sex (“female” vs. “male”),
Age = participant’s age (in years),
Experience = participant’s experience at caring for baby less than 1 year old (coded as “yes” = already cared for babies, “no” = never cared for babies),
Exposure = participant’s current exposure to babies aged less than 1 year old (coded as “yes” = have a baby in their family circle, their circle of friends or their neighbourhood, “no” = have not spent time with any baby recently),
Baby = baby’s category coded as “assigned” vs. “stranger” baby,
BabyID = assigned baby’s identity (included in the model as a random factor)
Test = test number coded as “Test1” vs. “Test2” vs. “Test3” vs. “Test4” (i.e. first, second, third or fourth series of 15 cries),
Response = participants’ answers, at whether each cry belonged to their assigned baby (1 = “yes”) or not (0 = “no”)
Supporting dataset for Experiment 3: Effect of exposure on non-parents’ ability to recognise a newborn from their cries
Experiment 3 aimed at evaluating non-parents’ ability to recognize a given experimentally “assigned” baby from their cries depending on the quantity of input received during the training phase (participants’ sex, age and prior experience at caring for babies were balanced across training conditions). More specifically, we tested whether this ability was influenced by the quantity of input received during training (1 to 6 cries heard during training), and the testing stage.
List of variables :
ParticipantID = tested participant’s identity (included in the model as a random factor).
Baby = baby’s category coded as “assigned” vs. “stranger” baby,
BabyID = assigned baby’s identity (included in the model as a random factor)
Input = participant’s input during the training phase (1 to 6 crying samples, taken as a continuous variable),
Test = test number coded as “Test1” vs. “Test2” vs. “Test3” vs. “Test4” (i.e. first, second, third or fourth series of 15 cries),
Response = participants’ answers, at whether each cry belonged to their assigned baby (1 = “yes”) or not (0 = “no”)