Airborne Ultrasonic Tactile Display BCI
This work introduces a novel contactless tactile BCI paradigm, potentially benefiting users by eliminating physical attachments, though it appears incremental as it builds on existing tactile BCI methods.
The study investigated whether contactless airborne ultrasonic tactile display (AUTD) stimuli on the palms could serve as a brain-computer interface (BCI), achieving validation through online experiments with subjects and winning the top prize in the 2014 BCI Research Award competition.
This chapter presents results of our project, which studied whether contactless and airborne ultrasonic tactile display (AUTD) stimuli delivered to a user's palms could serve as a platform for a brain computer interface (BCI) paradigm. We used six palm positions to evoke combined somatosensory brain responses to implement a novel contactless tactile BCI. This achievement was awarded the top prize in the Annual BCI Research Award 2014 competition. This chapter also presents a comparison with a classical attached vibrotactile transducer-based BCI paradigm. Experiment results from subjects performing online experiments validate the novel BCI paradigm.