A critical appraisal of "Lokalisationslehre" in the brain.

Localization of function in the brain is the attempt to correlate well-defined functions with circumscribed areas of the brain which can be characterized by their cytoarchitecture. The proof that such correlations exist and can be considered legitimate is demonstrated in the bedside neurologic diagnosis. This discussion, however, aims to show how many failures have already been made with this procedure and the still-existent dangers of repeating them.