1 MANUSCRIPT IN PRESS IN SOCIAL NEUROSCIENCE Action observation in the infant brain: The role of body form and motion Tobias Grossmann 1* , Emily S. Cross 1,2,3 , Luca F. Ticini 1 , & Moritz M. Daum 1 1 Max Planck Institute for Human Cognitive and Brain Sciences, Stephanstrasse 1a, 04103 Leipzig, Germany 2 Donders Institute for Brain, Cognition, & Behaviour, 6500 HE Nijmegen, The Netherlands 3 Wales Institute for Cognitive Neuroscience, School of Psychology, Bangor University, Gwynedd LL57 2AS, UK *Correspondence: grossman@cbs.mpg.de