ABSTRACT
In the event of spinal cord injury or neuromuscular disease such as amyotrophic lateral sclerosis (ALS), the people affected have difficulty communicating normally with people and their external environments. In order to better provide for the needs of these individuals, developments of assistive devices have seen an increase in proliferation in recent years. These devices are used to help the patients cope with daily tasks such as eating, changing clothes, and mobility, among others. A field that has only recently been considered is entertainment for the patients. Different forms of entertainment were created with the assistance of brain computer interface (BCI). BCI is essentially a means of extracting several features from the scalp potential, or EEG, with the aid of external devices. Through the use of these assistive devices patients would then be able to communicate with the outside world (Wolpaw et al., 2002). One entertainment task is BCI-controlled chess game wherein EEG is used to determine which piece to move (Morais, 2002). Previous developments on BCI made use of event-related
potential (ERP) associated in time with either physical or mental occurrence.
