Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia)
An ethnically homogeneous group of Yakuts (Mongoloid race, Northeast Asia), aged 18–31, was studied to characterize the diversity of particular features between left- and right-handed individuals. A total of 52 left-handed (32 women and 20 men) and 100 right-handed (50 women and 50 men) individuals...
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ftmdpi:oai:mdpi.com:/2073-8994/10/12/728/ 2023-08-20T04:10:21+02:00 Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) Elena Shadrina Yakov Vol’pert 2018-12-06 application/pdf https://doi.org/10.3390/sym10120728 EN eng Multidisciplinary Digital Publishing Institute Biology and Symmetry/Asymmetry https://dx.doi.org/10.3390/sym10120728 https://creativecommons.org/licenses/by/4.0/ Symmetry; Volume 10; Issue 12; Pages: 728 anthropology handedness dermatoglyphics fingerprints functional asymmetry fluctuating asymmetry Text 2018 ftmdpi https://doi.org/10.3390/sym10120728 2023-07-31T21:53:31Z An ethnically homogeneous group of Yakuts (Mongoloid race, Northeast Asia), aged 18–31, was studied to characterize the diversity of particular features between left- and right-handed individuals. A total of 52 left-handed (32 women and 20 men) and 100 right-handed (50 women and 50 men) individuals were studied. Testing included two sets of questions and tasks, dynamometry of the right and left hand, and fingerprint analysis. Left-handed and right-handed people were found to differ in functional asymmetry of psychophysiological and motor reactions. Right-handers were characterized by higher intragroup similarity, while, among left-handers, greater dispersion of these traits was observed. Asymmetry in hand grip strength was less pronounced in the left-handed people than in the right-handed; this difference was statistically significant, and the difference was greater in men than in women. This suggests that the non-dominant hand in the left-handed people was subjected to a greater load and indicates the forced adaptation of the left-handed people to “dextrastress”. No significant difference between sexes was found when analyzing fingerprint patterns. Left-handers had arches significantly more often than right-handers. Radial loops were most often found on the index finger, and, in the left-handers, their occurrence was significantly higher on three to five fingers of the left hand compared with the right-handers. The levels of fluctuating asymmetry in left-handers and right-handers were similar. Text Yakuts Siberia MDPI Open Access Publishing Symmetry 10 12 728 |
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MDPI Open Access Publishing |
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English |
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anthropology handedness dermatoglyphics fingerprints functional asymmetry fluctuating asymmetry |
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anthropology handedness dermatoglyphics fingerprints functional asymmetry fluctuating asymmetry Elena Shadrina Yakov Vol’pert Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
topic_facet |
anthropology handedness dermatoglyphics fingerprints functional asymmetry fluctuating asymmetry |
description |
An ethnically homogeneous group of Yakuts (Mongoloid race, Northeast Asia), aged 18–31, was studied to characterize the diversity of particular features between left- and right-handed individuals. A total of 52 left-handed (32 women and 20 men) and 100 right-handed (50 women and 50 men) individuals were studied. Testing included two sets of questions and tasks, dynamometry of the right and left hand, and fingerprint analysis. Left-handed and right-handed people were found to differ in functional asymmetry of psychophysiological and motor reactions. Right-handers were characterized by higher intragroup similarity, while, among left-handers, greater dispersion of these traits was observed. Asymmetry in hand grip strength was less pronounced in the left-handed people than in the right-handed; this difference was statistically significant, and the difference was greater in men than in women. This suggests that the non-dominant hand in the left-handed people was subjected to a greater load and indicates the forced adaptation of the left-handed people to “dextrastress”. No significant difference between sexes was found when analyzing fingerprint patterns. Left-handers had arches significantly more often than right-handers. Radial loops were most often found on the index finger, and, in the left-handers, their occurrence was significantly higher on three to five fingers of the left hand compared with the right-handers. The levels of fluctuating asymmetry in left-handers and right-handers were similar. |
format |
Text |
author |
Elena Shadrina Yakov Vol’pert |
author_facet |
Elena Shadrina Yakov Vol’pert |
author_sort |
Elena Shadrina |
title |
Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
title_short |
Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
title_full |
Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
title_fullStr |
Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
title_full_unstemmed |
Functional Asymmetry and Fingerprint Features of Left-Handed and Right-Handed Young Yakuts (Mongoloid Race, North-Eastern Siberia) |
title_sort |
functional asymmetry and fingerprint features of left-handed and right-handed young yakuts (mongoloid race, north-eastern siberia) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2018 |
url |
https://doi.org/10.3390/sym10120728 |
genre |
Yakuts Siberia |
genre_facet |
Yakuts Siberia |
op_source |
Symmetry; Volume 10; Issue 12; Pages: 728 |
op_relation |
Biology and Symmetry/Asymmetry https://dx.doi.org/10.3390/sym10120728 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/sym10120728 |
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Symmetry |
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10 |
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12 |
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728 |
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