“…Previous research has demonstrated that picture-based enrichment (Bull and Wittrock, 1973;Smith et al, 1987Smith et al, , 1994Plass et al, 1998;McGregor et al, 2007;Morett, 2019;Andrä et al, 2020) as well as gesture-based enrichment can improve word learning (with studies predominantly using iconic or emblematic gestures, cf. Quinn-Allen, 1995;Kelly et al, 2009;Macedonia and Knösche, 2011;de Nooijer et al, 2013de Nooijer et al, , 2014Macedonia and Klimesch, 2014;Baills et al, 2019;Huang et al, 2019;Andrä et al, 2020;Sweller et al, 2020). The details of the underlying mechanisms are, however, not understood in full detail.…”