TY - JFULL AU - Young-Seok Choi PY - 2014/11/ TI - Electroencephalography Based Brain-Computer Interface for Cerebellum Impaired Patients T2 - International Journal of Biomedical and Biological Engineering SP - 718 EP - 722 VL - 8 SN - 1307-6892 UR - https://publications.waset.org/pdf/9999563 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 94, 2014 N2 - In healthy humans, the cortical brain rhythm shows specific mu (~6-14 Hz) and beta (~18-24 Hz) band patterns in the cases of both real and imaginary motor movements. As cerebellar ataxia is associated with impairment of precise motor movement control as well as motor imagery, ataxia is an ideal model system in which to study the role of the cerebellocortical circuit in rhythm control. We hypothesize that the EEG characteristics of ataxic patients differ from those of controls during the performance of a Brain-Computer Interface (BCI) task. Ataxia and control subjects showed a similar distribution of mu power during cued relaxation. During cued motor imagery, however, the ataxia group showed significant spatial distribution of the response, while the control group showed the expected decrease in mu-band power (localized to the motor cortex). ER -