Особенности полушарного доминирования у студентов
Статья в журнале
Русский
Библиогр.: с. 99 (9 назв.)
612.825(571.56)
Север; адаптация; праворукие и леворукие; большие полушария; моторная и сенсорная асимметрии; студенты-якуты; North; adaptation; right-handed and left-handed; large hemispheres; motor and sensory asymmetry; Yakut students
Медицина и здравоохранение / Клиническая медицина / Неврология
Вестник Северо-Восточного федерального университета им. М. К. Аммосова. – 2017. – N 04 (09)
C. 96-99
Вестник Северо-Восточного федерального университета им. М. К. Аммосова
Якутск, Северо-Восточный федеральный университет
2222-5404 (print)
РИНЦ 2017: 0,237
The types of functional brain asymmetry (FAM) in 104 Yakut students writing with the left (n = 44) and right (n = 60) hand were studied. The types of FAM were determined with the help of functional tests on three grounds: leading hand, ear, and eye. Evaluation of the level of FAM expression was carried out using the coefficient of asymmetry (Ka). Along with the low incidence of absolute right-handers (16.7 %) and left-handers (15.9 %), high occurrence of manual ambidexterity was revealed: in right-handed people - 46.7 %, in left-handed people - 54.5 %. The high prevalence of manual ambidexterity in combination with weak manifestation of manual asymmetry (Ka of arm in right-handed ambidexters at 0.13, in left-handed - 0.03), indicate interhemispheric interaction of motor zones. High occurrence (31.7 %) of right-handed sensory symmetry of the eye is combined with a low value of Ka (0.27) of this organ. Left-handed people are dominated by persons with the left leading ear (59.0 %) and the eye (52.3 %), as well as sensory ambidexters of the ear (20.5 %) and eyes (38.6 %). Left-handed patients have a relatively high level of left-sided asymmetry of the ear (Ka-0.44) and eye (Ka-0.41). The above results suggest the predominant participation of the right hemisphere, or the uniform participation of both hemispheres in the processing of sensory information in the examined. Apparently, in Yakuts, like in other indigenous peoples of the North, the formation of the right hemisphere and ambidextral profiles of FAM is associated with adaptive changes in the organism occurring under extreme environmental conditions
Особенности полушарного доминирования у студентов / Г. К. Степанова, К. А. Кривоошапкин, А. А. Макаров, Н. И. Слюгров // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия: Медицинские науки.— 2017. — N 4 (09). — С. 96-99.
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