The second objective was to examine, from a large sample of ordinary locotors, how the age and linguistic performance of the locotors are related to the frequency of gestural use. In practical terms, it was assumed that the number of gestures would increase with the age of a spokesperson, but would decrease with language skills. Unlike most previous studies, the current study systematically and detailedly quantified the results of each participant`s speeches using sensitive language measures that reflect performance ranging from lexical to rate level. The misunderstanding of the importance of gestures in different cultures can lead to misunderstandings, insults and even violence. However, as hand gestures are part of our daily communication habits, it is easy to make a mistake. U.S. Presidents George W. Bush and Richard Nixon involuntarily insulted their audiences in Australia and Brazil by shining frequently used American hand gestures, unaware that the meanings were radically different. A study conducted in 1644 by John Bulwer, English physician and natural philosopher of Baconian, wrote five works, human communication, which refers to gestures.  Bulwer analyzed dozens of gestures and provided a guide under his book Chirologia, centered on hand gestures.
 In the 19th century, Andrea De Jorio, an Italian antique dealer who did a lot of research on body language, published a detailed report on gestural expressions.  Through this combination of co-language gestures – a form of manual action – in language in the brain, Roel Willems and Peter Hagoort conclude that gestures and language contribute to the understanding and decoding of a lophone`s coded message. Willems and Hagoort`s research suggests that “gesture-induced treatment is qualitatively similar to that of words in semantic treatment.” This conclusion is supported by the results of experiments conducted by skipper, where the use of gestures has led to a “division of work between areas related to language or action (the broca range or the premotor/primary motor cortex). There was not as much need for semantic selection or control as the listener would otherwise be required by the Brocas region. Gestures are a way of representing an individual`s thoughts that are stimulated in working memory. The results of an experiment showed that adults have increased accuracy when using pointing gestures instead of simply counting in their head (without using pointing gestures)  In addition, the results of a study conducted by Marstaller and Burianova suggest that the use of gestures affects working memory. The researchers found that those with low working memory capacity who could use gestures actually recalled more terms than those with low ability to use gestures.  Xu, Gannon, Emmorey, Jason and Braun (2009) suggested that language and gesture came from the same system, but that they could be compensated independently. In particular, it seems reasonable to suggest that language and gestures are activated in an antagonistic manner, at least in normal enclosures, where they can compensate each other. Although the above encoding frameworks made it possible to more objectively codify and quantify the use of gestures, most of these reports did not accompany in-depth examinations of the relationship between coded gestures and locotor characteristics, such as age and language proficiency.