{"id":16961,"date":"2019-11-12T05:16:05","date_gmt":"2019-11-12T05:16:05","guid":{"rendered":"https:\/\/www.revoscience.com\/en\/?p=16961"},"modified":"2020-06-09T12:40:01","modified_gmt":"2020-06-09T12:40:01","slug":"researcher-found-clues-to-explain-origin-of-human-hand-motor-skill","status":"publish","type":"post","link":"https:\/\/www.revoscience.com\/en\/researcher-found-clues-to-explain-origin-of-human-hand-motor-skill\/","title":{"rendered":"Researcher found clues to explain origin of Human hand motor skill"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Recent study suggests that, “Brain\nEnlightens the Origin of Human Hand\u2019s Skill.”<\/p>\n\n\n\n

According to the Dr. Jinung An, Daegu Gyeongbuk Institute of Science and Technology (DGIST)<\/a>, We, humans, who have evolved from Homo Habilis (\u2018handy man\u2019), have developed art, science, and technology. <\/p>\n\n\n\n

This is due to the ability to manipulate hands; one of the innate\ntalents that human has as well as language. <\/p>\n\n\n\n

Nevertheless, scientific exploration of the origin of the human hand\u2019s\nskill to manipulate is still ongoing. He and his colleagues (Dr. Seung Hyun Lee\nand Mr. Sang Hyeon Jin) began to explore the human brain’s motor pathway with a\nlamp called fNIRS to find it.<\/p>\n\n\n\n

Fifteen right-handed men performed\nsophisticated and complex hand movements (pinch grasping almonds with steel\nchopsticks and moving them precisely into the target) alternately between right\nand left hands. Simultaneously, they observed by fNIRS how the motor pathways\nof the cerebral cortex differ from one another.<\/p>\n\n\n\n

\"\"
Dr. Jinung An (left), Dr. Seunghyun Lee (middle), and Mr. Sang-hyeon Jin (right) <\/figcaption><\/figure>\n\n\n\n

They discovered that dominant right hand\nmanipulation turned on contralateral cortical motor pathway accurately.\nNon-dominant left hand manipulation, on the other hand, activated contralateral\ncortical motor pathway with the help of ipsilateral cortical motor pathway.\nThis results significantly suggested that when manipulating with non-dominant\nleft-hand, brain regions corresponding to the inborn dominant right hand\nfunctioned to help learn motor manipulation.<\/p>\n\n\n\n

Dr. An talked. In the early 20th century,\nClaude L\u00e9vi-Strauss declared that human is a ‘Locuteur (Speaker)’ rather than a\nman’s maker of machines. He emphasized language as a natural heritage of\nhumankind. In contrast, Henri Bergson earlier defined human intelligence as the\n\u201cfaculty to create artificial objects, in particular tools to make tools, and\nto indefinitely variate its makings\u201d in his great book, \u201cCreative Evolution,\n1907.\u201d Influenced by his philosophical idea, Max Frisch published a novel \u201cHomo\nFaber (Man the Maker)\u201d tells that human beings are able to control their fate\nand their environment as a result of the use of tools.<\/p>\n\n\n\n

Dr. An strongly insisted that both language\nand ability to use tools are inherent talents of human beings, and we can develop\nnew motor artificial intelligence by simulating human ability to use tools just\nas we have developed the artificial intelligence of natural language processing\nby simulating the structure of human language.<\/p>\n\n\n\n

This research was supported by the National\nResearch Foundation for the \u2018Development of noninvasive central-peripheral\nnerves complex stimulus and control technology based on brain activated\nreal-time for facilitating next generation cerebral nerves (2018R1A2B2008013)\u2019\nas well as the \u2018Development of BCI-based brain cognitive computing technology\nthat recognizes human intention using deep learning (2017-0-00451)\u2019 supported\nby the Institute for Information and Communications Technology Promotion\n(IITP). The research was published on the online version of Scientific Reports\non October 1st.<\/p>\n
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