Functional asymmetry between the two hemispheres of the human brain

Abstract

In the past, people believed that the left cerebral hemisphere was the dominant hemisphere based on its relationship with people's unique speech functions, that is, it played a leading and decisive role in human activities. In recent decades, many aspects of research have proven that this argument is outdated, and it has been proposed that the activities of the two hemispheres of the brain not only cooperate with each other, but also have relatively specific special functions. As far as a specific function is concerned, one hemisphere plays an "advantage" role that the other hemisphere cannot. The functional asymmetry of the two hemispheres of the brain is first reflected in the different clinical characteristics caused when they are damaged. Damage to the temporo-parietal-occipital junction areas on both sides can be accompanied by impairments in movement, sensation, nutrition, use and cognition. about