Application of ECoG and Electrode in BCI

Abstract

The brain-computer interface (BCI) is a new technology that connects a computer or other electronic devices to the brains of humans, animals, or even brain cell cultures. It creates a link between the brain and technology so that messages can be sent immediately. It does not rely on the muscles and peripheral nerves that generally aid in the transmission of brain information. It is widely used in rehabilitation medicine, artificial intelligence, neuroscience, and other fields. Nowadays, with the development of neuroimaging technology, brain imaging technologies recording activities on different scales have been emerging. Electrocorticography (ECoG), which is involved in semi-invasive BCI and depth electrode, which is involved in invasive BCI, has greatly promoted the development of BCI. This paper, through a method of literature review, provides general perspectives on the application of ECoG and depth electrode in BCI; describes the advantages and disadvantages of ECoG and depth electrode; and finally discusses chances for further research. Representative research findings regarding ECoG and depth electrodes in recent years were reviewed. In summary, though ECoG and depth electrode still have some limitations, their importance in the future is undisputed.