Comparative analysis of lateral organization of brain of teenagers of the northern and southern regions of Russia

The article deals with the peculiarities of the lateralization of the sensor-motor functions of the teenagers of 13–14 years old of different climatological and geographical zones. There is demonstrated that the percent of the persons with the left phenotype and a high degree of the dominancy of each lateral trait is significantly higher among the students of the south region than the schoolchildren living in the north.