Reitan (August 29, 1922 – August 24, 2014) was an American neuropsychologist and one of the fathers of American clinical neuropsychology having brought the notion of brain-behavior relationships to the forefront of the field.
He is best known for his role in developing the Halstead-Reitan Neuropsychological Battery and his strong belief in empiricism and evidence-based practice.
He was a strong advocate of use of a fixed battery in neuropsychological assessment, published prolifically, and mentored many students who also became prominent in the field.