1. Department of Clinical-, Neuro- and Developmental Psychology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands
2. Nature and Child Development Research Group, Department of Education, Leiden University of Applied Sciences, Zernikedreef 11, 2333 CK Leiden, The Netherlands
3. Applied Plant Research, Wageningen University and Research, Lingewal 1, 6668 LA Randwijk, The Netherlands