The functions of the left and right hemispheres of the human brain are basically the same, but each has its own specific aspects.Usually, it is related to the languageText symbolsThe specialized function of aspect is called dominant hemisphere;And engaged inSense of spaceThe non dominant hemisphere is related to the specialized functions of art, music, etc.The dominant hemisphere is mostly the left hemisphere.The dominant hemisphere hasspeak、be good, writing and readingLanguage area：Motor language center(speaking center),Auditory language center(listening center),Writing center，Visual language center(Reading center)
The right hemisphere of the brain has a dominant perception of local geometric properties
Institute of Biophysics, Chinese Academy of SciencesState Key Laboratory of Brain and Cognitive SciencesThe latest research found that the left hemisphere of the human brain is dominant in the perception of large-scale topological properties, and the right hemisphere is dominant in the perception of local geometric properties.The findings were published in the December 26, 2007《Proceedings of the National Academy of Sciences》, and was introduced by the column "This Guide" of the magazine.
Institute of Biophysics, Chinese Academy of SciencesChen LinAcademician ledcognitive scienceandBrain imagingTeam, created the topological property of "large scale first"Perceptual theory, challenge the theory of "local first" which has dominated for half a century, and emphasizePerceptual processIt starts from the large-scale topological invariance, which provides a new idea for the study of the differences between left and right brains.
Wang Bo and other young scholars of the institute put "large scale first"topologyApplication of property perception theory toCerebral hemispherenoSymmetryResearch.After more than six years of experiments, they systematically studied various topological properties (such as the number of holes, internal and external relations, etc.) and other geometric properties (such as orientation, distance, size, symmetry, parallelism, straightness, etc.)Comparative test, consistently revealing that right-handed people's perception of topological properties of the left brain is dominant;Also usedfunctional magnetic resonance imagingIt is found that topological property discrimination produces the left hemisphere of the brainTemporal lobeexcitement.Some experts believe that the conclusion of this study that "the perception of topological properties of the left hemisphere is dominant, and the perception of local geometric properties of the right hemisphere is dominant" provides a unified theoretical framework for solving various controversial issues about the relationship between left and right brains in vision, and also provides a basic scientific basis for understanding and developing the brain.
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The left and right hemispheres of the human brain have basically the same function, but each has its own specialization. The dominant hemisphere is usually related to the specialization of language and characters;And engaged inSense of spaceThe non dominant hemisphere is related to the specialized functions of art, music, etc.The dominant hemisphere is mostly the left hemisphere.The dominant hemisphere includes speaking, listening, writing and readingLanguage area: sportinessLanguage center(Speakingthe central administration)，Auditory language center(listening center),Writing center，visionSexual language center (reading center)
The center of language activity is often concentrated on one sideCerebral hemisphere, calledLanguage centerThe dominant hemisphere.clinicalPractical proofFor right-handed people, the dominant hemisphere is on the left. Although this is related to heredity, it is mainly formed in the acquired life practice, which is closely related to human right-handed laborrelevant。The dominant hemisphere is formed before adulthood, and the left hemisphere dominance is not fully established before the age of 12. In this case, the left hemisphere is damaged, and the language center may be re established in the right hemisphere.After adulthood, the dominance of the left hemisphere has been fully formed. If the left hemisphere is damaged, it is difficult to establish the language center in the right hemisphere.In the use of left-handed laborAmong peopleBoth left and right hemispheres may become the center of language activities.
Although the left hemisphere is dominant in language activities, the right hemisphere is dominant in nonverbal cognitive functions, such as space recognition, music appreciation and discrimination.However, this advantage is relative. The left hemisphere has a certain non-verbal cognitive function, while the right hemisphere also has a simple verbal activity function.
