“…If inhibitory control is needed to prevent highly activated simulations from being expressed as gestures, as the GSA framework contends, then children should gesture more than adults, all else being equal. The problem, of course, is that all else is not equal, as there are also developmental differences in narrative length and complexity (e.g., Colletta et al, 2010;Reig Alamillo et al, 2012), in imagery abilities (e.g., Spruijt et al, 2015), in sensitivity to the audience's knowledge (e.g., Fukumura, 2016), and in other verbal skills across development. Thus, it is difficult to use the GSA framework to interpret differences in gesture rates between children and adults, because so many factors that are proposed to affect gesture rates also change with development.…”