Naslov
Dermatoglyphics as the markers of high heredity of superior intelligence

Autori
Cesarik, Marijan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Neurol Croat 44 supl 1 1995 / - , 1995, 61-62

Skup
35th INTERNATIONAL NEUROPSYCHIATRIC SYMPOSIUM

Mjesto i datum
Pula, Hrvatska, 14.06.1995. - 17.06.1995

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
Dermatoglyphics

Sažetak
For some time one of very popular topics and the theme of rancorous disputes among philoso- phers and psychologists has been the origin of human intelligence: whether it is the result of heredity or the enviromental influence during development and later life. Today the prevalent opinion is that intelligence is mostly determined by hereditary factors, but it is impossible to give an exact answer about the relative part of heredity in its development. The theory of poligenetically determined predisposition of intelligence has been developed by Burt and Howard (1956). The answer to the question of the relative influence of heredity on the development of a characteristic could be the hereditary coeficient, what is the proportion of diversity of a characteristic property in a population, and is explained by hereditary factors. Dermatoglyphic investigations of persons with insufficient mental development done by Bozicevic (1981) show that the discrimination of insufficiently mentally developed from the average population is possible, primarily by quantitative properties of the palmar localization. Having in mind that the quantitative dermatoglyphic properties are highly hereditary determined, he concludes that the difference in dermatoglyphic structure in persons with insufficient mental level is mostly determined by genetic factors. According to Wechsler’s statistic classification of intelligence, persons with lower mental development are presented in the same number (6.72%) as the superior persons with the higher level intelligence. The basic pressumption of this work is the "biologic difference" between the group of highly intelligent examinees and the average population of both sexes and the possibility to establish this difference by investigating the characteristics of digitopalmar dermatoglyphics. In this work the analysis of quantitative properties of digitopalmar dermatoglyphics is performed within a group of 70 examinees with the above- average intelligence. Eighteen variables were analyzed (total ridge count on all fingers, ridge count between the palmar triradius and atd-angle) in both groups, along with the application of descriptive statistical methods, the variable analysis and discrimination analysis within manifest variables. The research has shown the statistically significant increase in FRD1, FRD5, cd-rc-D, FRL1, FRL5 values, as well as the de- creased values of aid-angles on both sides in male examinees, and the increase in ridge count for the FRD1, FRD5 and FRL1 values, along with the bothsided decrease of atd-angles in female patients. These were the main discriminators, with the possibility to classify by discrimination analysis about 80% of the tested persons, what highly overcomes statistical coincidence. The results point to the possibility of discriminating people with superior intelligence from the average population on the basis of dermatoglyphic status. Regarding the high hereditary determination of quantitative dermatoglyphic properties, we conclude that the difference in dermatoglyphic structure of superior persons is mainly conditioned by hereditary factors.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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