1. Department of Experimental Psychology University of Oxford Oxford UK
2. Department of Psychology University of California Berkeley California USA
3. Department of Psychology University of Portsmouth Portsmouth UK
4. Department of Research Methods in Early Child Development Leipzig University Leipzig Germany
5. Leipzig Research Center for Early Child Development Leipzig University Leipzig Germany
6. Department of Psychology and Neuroscience Duke University Durham North Carolina USA
7. Department of Developmental and Comparative Psychology Max Planck Institute of Evolutionary Anthropology Leipzig Germany