Munich Personal RePEc Archive

2D:4D Digit Ratio Predicts Delay of Gratification in Preschoolers

Da Silva, Sergio and Moreira, Bruno and Da Costa Jr, Newton (2014): 2D:4D Digit Ratio Predicts Delay of Gratification in Preschoolers. Published in: PLoS One , Vol. 9, No. 12 (9 December 2014): e114394.

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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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