摘要：Brain-computer interface (BCI) systems based on the steady-state visual evoked potential
(SSVEP) provide higher information throughput and require shorter training than BCI systems
using other brain signals. To elicit an SSVEP, a repetitive visual stimulus (RVS) has to be
presented to the user. The RVS can be rendered on a computer screen by alternating graphical
patterns, or with external light sources able to emit modulated light. The properties of an RVS
(e.g., frequency, color) depend on the rendering device and influence the SSVEP characteristics.
This affects the BCI information throughput and the levels of user safety and comfort. Literature
on SSVEP-based BCIs does not generally provide reasons for the selection of the used rendering
devices or RVS properties. In this paper, we review the literature on SSVEP-based BCIs and
comprehensively report on the different RVS choices in terms of rendering devices, properties,
and their potential influence on BCI performance, user safety and comfort.
