The aim of this article is to provide a summary overview of some of the more important scientific evidence of neurological differences between stutterers and non-stutterers.
 
 Opsomming
 Die doel van hierdie artikel is om ‘n opsommende oorsig te bied van die belangrikste wetenskaplike bewyse vir neurologiese verskille tussen mense wat hakkel en mense wat nie hakkel nie.
 
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