Comparison of Finger Ridge Counts in Acquired Idiopathic Blindness in Some Selected Schools for the Blind in Nigeria
Journal Title: Scholars Academic Journal of Biosciences - Year 2017, Vol 5, Issue 11
Abstract
Dermatoglyphics is defined simply as the study of patterns of the skin (dermal) ridges present on human fingers, toes and the soles. The finger ridge counts as a parameter could be used as an investigative tool in forensics. The study was aimed at investigating whether there is a characteristic finger ridge count difference in acquired idiopathic blindness and comparing with non-blind subjects. The design of the study was non-experimental analytical and cross-sectional. The study had 72 subjects which were 14 female blind, 22 male blind, 18 female non-blind and 18 male non-blind subjects recruited for the study. The fingers ridge counts were determined using a classical scanner type, Hp G3110 Scanjet Scanner (9000x4800 dpi resolution) to obtain a clear and visible print. One–way Anova and Kruskal-Wallis Test using Statistical Package for the Social Sciences (SPSS 20.0 version). The blind male subjects had the highest mean value [66.42± 5.73, 64.36±3.28] on the right index finger and left middle finger respectively. The least mean value [46.63±4.21; 55.15± 2.67] right little finger and the left thumb respectively. The Non-blind subjects had the highest mean value [73.05± 5.30; 72.10±1.86] the right middle finger and left index finger respectively. The least mean value [61.45±2.16; 55.05± 4.67] right thumb and left little finger respectively. It has been established that there is a characteristic finger ridge distribution that could be used to differentiate blind males from non-blind males. This information will be very helpful in forensics.
Authors and Affiliations
Paul Chikwuogwo Wokpeogu, Paul John Nwolim
Keywords
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