A brain-computer interface (BCI) is a device that has the potential to restore communication by direct translation of brain signals. The BCI used in this study, the P300 Speller, relies on the generation of a P300 evoked potential when a user is presented a rare and unpredictable target stimulus amidst a larger pool of non-target stimuli. This evoked potential is used to perform selections on the computer. Those with advanced ALS demonstrate decreased capacity for BCI control using the P300 speller. With this study, we aim to use a combination of eye tracking and sensory testing to quantify sensory and cognitive processes necessary for the generation of a P300 response. We will test the performance of a multisensory P300 spelling task, where brain potentials are evoked using a combination of visual, auditory, and tactile stimuli. The goal is to demonstrate the perceptual benefits of multisensory integration and generate evidence for its use in this patient group.

A brain-computer interface (BCI) is a device that has the potential to restore communication by direct translation of brain signals. The BCI used in this study, the P300 Speller, relies on the generation of a P300 evoked potential when a user is presented a rare and unpredictable target stimulus amidst a larger pool of non-target stimuli. This evoked potential is used to perform selections on the computer. With this study, we aim to use a combination of eye tracking and sensory testing to quantify sensory and cognitive processes necessary for the generation of a P300 response. We will test the performance of a multisensory P300 spelling task, where brain potentials are evoked using a combination of visual, auditory, and tactile stimuli.

$40