A Standard of Aberrant Conformations of Gyres and Furrows framed as a Test, and constituting a stigma, of Hereditary Mental Degeneracy. A Standard of Deviation and Defect.
And, in Chapter XI.,
The results of the Application of the Standard of Deviation and Defect in Comparisons between the Gyres and Furrows in several forms of Mental Disease, and those in the Standard Group of Cases.
In the deviations from usual form or type already described—both the new and those adopted from other observers—the material is provided for tests or criteria of various forms of defective or aberrant brain development; and the standard about to be described has its material derived from those sources, and is directly drawn from certain brains.
∗ With little change, these preliminary remarks are taken from part of my Presidential Address, in July, 1895, in the Section of Psychology at the Annual Meeting of the British Medical Association in London. (British Medical Journal, Sept. 28, 1895.)