Dermatoglyphic Patterns of Autistic Children in Nigeria
Abstract
Dermatoglyphic patterns have positive correlation in a number of genetic diseases. This research was carried out to determine any possible relationship between dermatoglyphics and autism in Nigeria using digital and palmar patterns, total ridge count, a-b ridge count and crease pattern. The digital and palmar prints of 20 autistic subjects from an autistic centre in Port Harcourt, Rivers state Nigeria were taken with parental guidance. The percentage frequency distribution of the digital pattern of the autistic subject was 49.5% for the arch, 18.5% for the whorl, 28.5% for the ulnar loop and 3.5% for the radial loop against 44% for the ulnar loop, 25.5% for the arch, 22% for the whorl and 8.5% for the radial loop for normal subjects. The mean values of the a –b ridge counts on the right and left hands of autistic male were 34.66 and 33.33 against 36.40 and 31.33 in non-autistic children respectively while in female they were 38.6 and 35.8 against 41.40 and 38.6 respectively.
Though no statistical significant difference was observed when the two groups were compared (P>0.05). It was, however, observed that the number of the total ridge counts in the right and left hands of the autistic children were lower than those of the normal subjects. Thus, there is need for further investigation using larger sample size. The data from this study will serve as a good reference for future study on this subject in Nigeria.
Key Words: Dermatoglyphics and Autism
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ISSN (Paper)2224-3208 ISSN (Online)2225-093X
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