1. Department of Human Development and Quantitative Methodology; University of Maryland; USA
2. Dipartimento di Neuroscienze; Università di Parma; Italy
3. Eunice Kennedy Shriver National Institutes of Child Health and Human Development; Poolesville USA
4. Laboratories of Cognitive Neuroscience; Division of Developmental Medicine; Children's Hospital Boston; USA
5. Department of Psychology; University of Chicago; USA