Spectral maps of the Liege-physiognomies of the neuroleptics.

Spectral mapping is a classification technique that has been applied to the Liege physiognomies of the neuroleptics. The method makes use of a special projection that separate potency from spectral information. Principal component analysis revealed a dominant component resembling a bipolar incisive/sedative scale. A second antimanic/antiautistic scale is apparent in the revised. Liege physiognomie. Spectral mapping allows to compare observations on neuroleptics in different frames of reference and from different methodologies (e.g. clinical and pharmacological).