ABSTRACT

This study was conducted to find the effect from the differences in EEG caused by the type of tactile exploration used and the affected site in the stroke patient. Methods : The data were collected on 21 stroke patients and 23 normal subjects between March and June of 2012. The EEG test conditions were classified as resting, passive, and active based on the type of tactile exploration. The conditions of the analyzed regions were sorted into Rt. hemiplegia, Lt. hemiplegia, and normal. We collected the data on the relative power of each patient's alpha rhythm and beta rhythm. An analysis of variance was conducted using SPSS 18.0. Results : The EEG activity differed according to the tactile exploration type and the affected site. We also found that the relative power of the alpha rhythm was lower during a passive state as compared with a resting or active state. Depending on the affected site, the relative power value of the beta rhythm was higher for the patients with a Rt. hemiplegia and the normal subjects. The interaction of each condition produced no changes. Conclusion : We found the effectiveness of the EEG value depending on the tactile exploration type used and the affected site. Accordingly, the tactile exploration method and affected site should be considered when providing occupational therapy. This study provides the related evidence for this based on neurophysiology.