Scotland in the High Middle Ages is a relatively well-studied topic and Scottish medievalists have produced a wide variety of publications. Some, such as David Dumville, Thomas Owen Clancy and Dauvit Broun, are primarily interested in the native cultures of the country, and often have linguistic training in the Celtic languages. Normanists, such as G.W.S. Barrow, are concerned with the Norman and Scoto-Norman cultures introduced to Scotland after the eleventh century. For much of the twentieth century, historians tended to stress the cultural change that took place in Scotland during this time. However, scholars such as Cynthia Neville and Richard Oram, while not ignoring cultural changes, argue that continuity with the Gaelic past was just as, if not more, important.