Although there is significant overlap between the fields of neurology and psychiatry, with the boundary between the two disciplines and the conditions they treat being somewhat nebulous, I would say that psychiatry includes wider range of disorders. read more
Neurology deals with the study of the more biological aspects of the brain and how it works while psychiatry deals with the brains cognitive functions. A neurologist looks at how neurons interact within the brain and a psychiatrist attempts to understand why some is depressed, for example. read more