Airborne Ultrasonic Tactile Display Brain-computer Interface Paradigm
This work addresses the need for non-invasive, contact-less BCI systems for users, though it appears incremental as it builds on existing tactile BCI methods.
The researchers tackled the problem of developing a contact-less brain-computer interface (BCI) by using airborne ultrasonic tactile display (AUTD) stimuli on the palms, and they validated this novel paradigm with online experiments, showing it can serve as a BCI platform.
We study the extent to which contact-less and airborne ultrasonic tactile display (AUTD) stimuli delivered to the palms of a user can serve as a platform for a brain computer interface (BCI) paradigm. Six palm positions are used to evoke combined somatosensory brain responses, in order to define a novel contact-less tactile BCI. A comparison is made with classical attached vibrotactile transducers. Experiment results of subjects performing online experiments validate the novel BCI paradigm.