Table 5.

The advantages and disadvantages of brain-computer interfaces (BCI).

Brain-computer interfaces (BCI)
Advantages	(1) Invasive BCI: High accuracy [31] (2) Increase remote access to rehabilitation supporting transition into home [32]. (3) Allows for a better control of the system as well as greater effects on brain reorganizations [33]. (4) Implantable BCIs have provided neural recordings with increased spacial resolutions [35].
Disadvantages	(1) Limited ability to represent more than two signal output choices [30]. (2) The risks and expenses associated with the surgery [31]. (3) Signal degradation (from implanted recordings electrodes), accuracy and robustness of neural decoding algorithms over time, miniaturization of the system, muscle fatigue when using FES, and overall system ease-of-use [35].