The temporal dynamics of intellectual abilities of 3590 first-year students (17.6 ± 1.0 years) from different university faculties were investigated. It was found that in the cohorts of young people tested in the period 2002–2012 in comparison with the decade of 1991-2001, the changes in IQ depend on gender, a field chosen for study at the university and the IQ specificity, i.e. level of verbal, arithmetic, visual-spatial abilities and memory. The Flynn effect is found for the general IQ of math students, while inversion of this effect is observed for humanities students. The heterogeneity of the Flynn effect due to IQ testing methods is manifested by an increase in the arithmetic component of intelligence when comparing the period 2001–2012 years from 1991–2001, but by a decrease in short-term memory. Math students were characterized by an increase in all components of intelligence with the exception of memory; engineering students demonstrated an increase in verbal and arithmetic components, but a decrease in short-term memory; and humanities students showed a decrease in both verbal IQ and short-term memory. The obtained results of the analysis of intellectual abilities in children born in 1974–1996 suggest that the specifics of temporal dynamics of IQ may be due to changes in the education system and the socio-economic status of the family that occurred in Russia during the period of Perestroika in society and the intensive development of information technologies.