He specialises in learning and emotion in infancy and has a particular interest in baby laughter (http://babylaughter.net). From 2005 to 2015 he worked at the Centre for Brain and Cognitive Development at Birkbeck, University of London, first as a PhD and then for several postdoctoral fellowships projects. He has also held an appointment at the University of Burgundy, Dijon. Caspar can be found on Twitter at @czzpr.