2D:4D Digit Ratio Predicts Delay of Gratification in Preschoolers |
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| Authors: | Sergio Da Silva Bruno Moreira Newton Da Costa Jr |
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| Institution: | 1. Graduate Program in Economics, Federal University of Santa Catarina, Florianopolis SC, 88049-970, Brazil.; 2. Federal Institute of Minas Gerais, Formiga MG, 35570-000, Brazil.; University Hospital of Münster, Germany, |
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| Abstract: | We replicate the Stanford marshmallow experiment with a sample of 141 preschoolers and find a correlation between lack of self-control and 2D:4D digit ratio. Children with low 2D:4D digit ratio are less likely to delay gratification. Low 2D:4D digit ratio may indicate high fetal testosterone. If this hypothesis is true, our finding means high fetal testosterone children are less likely to delay gratification. |
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