Limitations of NIRS-Based BCI for Realistic Applications in Human-Computer Interaction
نویسندگان
چکیده
Recent work in human-computer interaction (HCI) has endorsed NIRS-based BCI as suitable for use as a realtime input modality in realistic interaction settings. However, several discrepancies between the state-of-the-art NIRS signal processing and the purported applications in HCI suggest otherwise. To investigate such discrepancies and their effects on signal reliability, we conducted a large-scale evaluation of three factors – (1) unrestricted subject movement, (2) variable task duration, and (3) realtime signal processing – factors central to realistic settings. Our findings show high signal unreliability with NIRS-based BCI subject to these three factors, suggesting NIRS-based systems are premature for realistic applications in HCI.
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