期刊
JOURNAL OF NEURAL ENGINEERING
卷 8, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1741-2560/8/4/046028
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资金
- NIBIB NIH HHS [EB006356, R01 EB006356, R01 EB000856, EB000856] Funding Source: Medline
- NIDCD NIH HHS [R01 DC009215] Funding Source: Medline
Several stories in the popular media have speculated that it may be possible to infer from the brain which word a person is speaking or even thinking. While recent studies have demonstrated that brain signals can give detailed information about actual and imagined actions, such as different types of limb movements or spoken words, concrete experimental evidence for the possibility to 'read the mind', i.e. to interpret internally-generated speech, has been scarce. In this study, we found that it is possible to use signals recorded from the surface of the brain (electrocorticography) to discriminate the vowels and consonants embedded in spoken and in imagined words, and we defined the cortical areas that held the most information about discrimination of vowels and consonants. The results shed light on the distinct mechanisms associated with production of vowels and consonants, and could provide the basis for brain-based communication using imagined speech.
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