The aim of the research was to study somatic markers during decision-making in children aged 6-14 years. On the basis of the success in Piaget’s experiments, 27 children were divided into three groups – preoperational stage, concrete operational stage and formal operational stage. Children played a modified Iowa Gambling Task while skin conductance and heart rate were measured. The somatic markers appeared during decision-making in children from the age of approximately 10 years, the period of concrete operational stage.
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