27 Oct , 10:35
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Scientists uncover the mystery of intelligence inheritance: verbal abilities are transmitted through genes more actively than others
"The inheritance of mental abilities can be imagined as a grand symphony, in which many genes work together, creating a complex composition. In addition, these genetic features also interact with experience gained from the environment, for example, when reading books and attending school. Therefore, differences in people's intelligence are determined by the complex interaction of genes and environmental factors that work hand in hand," geneticist Anastasia Chebotareva told "Gazeta.Ru" in an interview.
According to the specialist, there are three main types of intelligence: verbal, general, and non-verbal. Verbal intelligence is responsible for the effective use of language and speech for communication, understanding, and expressing thoughts. General intelligence encompasses the ability to learn, understand complex concepts, solve problems, and make decisions. Non-verbal intelligence manifests in the ability to understand visual, sensory, and motor information. It's noteworthy that verbal intelligence depends on genetic factors more strongly than other types.
"In a recent study, scientists analyzed data from 452,864 participants. Their intelligence was assessed using standardized psychometric tests that measure cognitive abilities in various areas, including verbal and non-verbal thinking. People's results on different types of intelligence tests are usually closely related. That is, people who scored high on math tests, as a rule, also do well on vocabulary tests. But the study found that verbal intelligence was more predictable from people's genetic data compared to general or non-verbal intelligence," the geneticist emphasized.
Chebotareva notes that this feature may be explained by the fact that verbal intelligence is more likely to be inherited. In society, there is a tendency for people to choose partners with similar traits to create a family, and for most people, verbal communication plays a more significant role compared to other types of communication.
"In the case of intelligence, there is a close interaction between genetic predispositions and the external environment. Sometimes these two components are difficult to distinguish. For example, people with a genetic predisposition to higher intelligence may seek a more intellectually stimulating environment, which will further enhance their cognitive abilities. Therefore, it's important to understand that genes do not determine intelligence: they correlate and interact with the experience gained in the environment," the specialist concluded.