Introduction: Recently, there has been an increasing growth in studies on Brain-Computer Interfacing (BCI) so as to bring this technology into the phase of practical availability. BCI will contribute to a wide range of human activities, ranging from assisting patients with severe motility disturbance to a variety of nonclinical uses like controlling of cargo-loading machines, gaming or silent speech. The influence of this technology will not stop at the level of individual patients and users, who utilize the technology, but include society as a whole. This will necessitate a deliberation of its ethical, legal, and social consequences. However, currently, these deliberations are not organized in a comprehensive manner. The purpose of this article, therefore, is to provide an overview of preceding ELSI discussions on output BCI and to unveil where further explorations are mandated.
Methods: The authors analyzed discussions on BCI in the form of published studies by employing a systematic review and thematic analysis.
Results: Previous ELSI discussions on BCI can be classified into four main categories: BCI research ethics; BCI’s impact on society; BCI’s possible influences on human nature; and Nature of BCI ethics.
Discussion & Conclusion: While the existing discussions have provided sufficient topics of ELSI on BCI, they have yet to set out the framework to formulate arguments on each topic in an organized manner. Especially, we need more profound arguments about the nature of BCI ethics, namely more philosophical discussions on BCI, to fully appreciate the other categories of BCI research ethics, BCI’s impact on society, and BCI’s possible influences on human nature. The arguments go beyond finding topics, which will include an exploration of the methodology of ELSI discussions about BCI, which should enhance further studies.
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