The Journal of Abnormal Psychology | ||
FEEBLE-MINDEDNESS, ITS CAUSES AND CONSEQUENCES. By H. H. Goddard. The Macmillan Co., N. Y., 1914. 599 pp., illustrated.
Two comprehensive attempts have been made in recent years to study the inheritance of mental abnormality, one in England at the Eugenics Laboratory of the University of London, the other in this country under the leadership, more or less immediate, of the Eugenics Record Office. Both the English and the American school of workers agree that different grades of mental ability, mental defect and insanity are strongly inherited. But the two schools have reached very different conclusions as to the manner of inheritance of mental traits and mental defects. Each school entertains profound disrespect for the scientific methods and conclusions of the other and with the frankness and honesty which devotion to truth demand has freely criticised the other. By this criticism, at the bottom friendly though sometimes caustic, science has undoubtedly profited. The later work of each school begins to show the chastening influence of adverse criticism.
The English school has leaned backward in its devotion to the inductive method of accumulating inheritance data, ostensibly without prejudice for or against any particular theory but in reality with an ill-concealed bias against anything savoring of "Mendelism." The American school recognizing in Mendelism a great advance and an important instrument for the discovery of new truth, has ignored the possibility that other undiscovered laws of heredity may exist and has cast aside as superfluous the valuable biometric tools wrought with much patient toil by Galton and Pearson. It will be the part of wisdom for students of genetics to imitate the hostile attitude of neither school, but to utilize the positive results of both. This is what Dr. Goddard has done in the work under review.
He apparently began studying the inheritance of feeble-mindedness without theoretical prejudice, but with a practical end in view, to discover, if possible, the causes of feeble-mindedness so as to deal intelligently with the inmates of the Vineland (N. J.) institution with which he is connected. Goddard received inspiration
Goddard's findings as regards feeble-mindedness fit in perfectly with this scheme. That Goddard was unaware of it when his conclusions were reached is all the more evidence of their soundness because it shows that they were reached independently. Among albinos every higher grade of pigmentation dominates all the lower grades in inheritance, and so apparently it is with mental development; the higher grades dominate the lower. At every point there appears to be agreement in method of inheritance between albinism and feeble-mindedness. Each is a unit character but showing graded allelomorphic conditions which correspond probably with different stages of arrested development of pigmentation or mentality respectively.
The fact noted by Goddard that the feeble-minded resemble savages, that is backward races of low mentality, has much interest to the student of evolution. It indicates that the evolution of intelligence has occurred by a gradual progressive advancement, stages in which reappear as the higher grades of feeble-mindedness. Of course it is not certain that the ontogenetic stages, at which mental development may be arrested, correspond accurately with earlier phylogenetic stages, but the idea receives considerable support from the observed resemblance between the mentality of morons and that of savage peoples, if the observation may be accepted as accurate. I do not understand however that Goddard makes any claim to first-hand familiarity with the mental life of savages, so that no great emphasis should be laid on the point. But the mere fact that retrogressive variation in mentality is graded favors the view that its progressive evolution has been gradual, rather than the view that it has arisen by mutation or sudden loss of inhibitors. (Bateson, Davenport).
Goddard points out that a high grade moron may be a useful
As regards the causes of feeble-mindedness Goddard's findings are wholly negative, but not less valuable on that account. His case histories statistically studied indicate no causal relation to a number of reputed agencies in the creation of feeble-mindedness, such as alcoholism (which he regards as oftener a symptom than a cause), tuberculosis, sexual immorality, insanity, syphilis, accident and consanguinity. He recognizes heredity as its principal source, i. e. he recognizes feeble-mindedness as a stage of mentality already existing and transmissible by the ordinary mechanism of heredity, but does not attempt further to account for it, either as a survival or as an atavism.
That humanitarian governments by shielding and supporting the moron without putting a limit on his naturally high reproduction will speedily increase this class at the expense of the more intelligent classes of the community is self-evident, if it is admitted that feeble-mindedness is hereditary, as all who have investigated
How is this to be done? Goddard has no cure-all to offer but urges first of all that the mental grade of each individual be accurately determined and education and occupation be provided suited to his capacity. This will tend to make the moron a useful and contented member of the community, not a menace to it. Segregation is recommended so far as practicable, but in view of the large number (estimated at 300,000 to 400,000 in the U. S.) Goddard considers segregation of all impracticable. Nevertheless he urges further and energetic efforts in this direction, that as many as possible may be segregated as a safeguard against their reproduction. In individual cases "sterilization wisely and carefully practiced" must be employed to insure non-reproduction.
In this volume there is a pleasing absence of the rant which pervades some eugenic literature. The author has something of importance to contribute to science and he presents his contribution in a sober, dignified manner in keeping with the important character of his contribution.
W. E. CASTLE.
The Journal of Abnormal Psychology | ||