Featuresyouths with low and high sensitivity to odors of opposite sex

The formation of individual sensitivity to the odors of people of the opposite sex canbe affected by various individual and typological characteristics and social factors. Inthis regard, the objective of this study was to evaluate boys' individual sensitivity to thesmells of young girls.Samples of the smells of 19 girls were presented to 13 boys and on the contrary. Inthe group of subjects there were no people with diseases of upper respiratory tract.Odors were collected on filter discs, sewn to a cotton T-shirts in the underarm. 3 daysbefore taking the odor sample the subjects and the experimenters had refrained from eatingfoods containing garlic, hot sauce and other strong-smelling spices, and also had notused perfumes, deodorants and perfumed shower gels. The vials with samples of smellswere stored at -20.C. Smell testing was performed in a pre-ventilated room with a totalarea of 24 m ., in which there was only a recipient of odor and the experimenter. Thebottle was opened by the recipient, he brought a vial to the nose at a distance of about1 cm and smelled the smell emanating from it. All manipulations of samples odor werecarried out in disposable rubber gloves. Testing of one sample lasted less than 15 seconds.Samples of the smells were given in random order. Those under survey were alsoexamined for neurodynamical features such as mobility, balance and efficiency of thebrain work by NV Makarenko method (1984); genotyping of HLA-DRB1 and questioningwas performed and sexual experience was studied.The results showed that boys are less sensitive to odors of the opposite sex than girls.In this case, two groups of youths with different sensitivity to odors of girls have beenformed. The first group of young men are those who perceived less than 70% of the proposedsample odor, and the second are those who are able to assess more than 70% ofthe samples. The comparison of these groups of young males showed that young peoplewho are most sensitive to odors of the opposite sex are only heterozygous for HLA-DRB1genes and have high sexual experience and are in permanent relationship with a girl. Inthe studied groups of males there are no differences in the level of functional mobilityand nerve processes balance, but they are significantly different in the strength of nervousprocesses. Young men with high sensitivity to odors of the opposite sex have highervalues of this index, which is consistent with the data obtained Henry S. Koelega in thepsychological laboratory at the University of Utrecht in the Netherlands.The ability of young people to read nonverbal information through chemosignals in aright way determines their success in finding the most «suitable» partner for procreation,and the genotype and efficiency of the brain work contribute to it.

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