Sensorimotor EEG patterns during motor imagery in hemiparetic stroke patients
نویسندگان
چکیده
Motor imagery as rehabilitation method after stroke is becoming an important tool and is currently also heavily researched. One issue, however, is to quantify and monitor changes in the ongoing brain activity and to document brain plasticity. Here, we analyze the electroencephalogram (EEG) of hemiparetic stroke patients during left hand and right hand motor imagery in order to determine whether time-frequency maps of Event-Related Desynchronization (ERD) and EventRelated Synchronization (ERS), and single-trial classification by means of the Distinctive Sensitive Learning Vector Quantification (DSLVQ) method are suited to keep record of the changing brain activity. K eywords: Motor imagery, Stroke, Electroencephalogram (EEG), Event-Related Desynchronization (ERD)
منابع مشابه
Modulation of event-related desynchronization during motor imagery with transcranial direct current stimulation in a patient with severe hemiparetic stroke: a case report.
Recently, surface electroencephalogram (EEG)-based brain-machine interfaces (BMI) have been used for people with disabilities. As a BMI signal source, event-related desynchronization of alpha-band EEG (8-13 Hz) during motor imagery (mu ERD), which is interpreted as desynchronized activities of the activated neurons, is commonly used. However, it is often difficult for patients with severe hemip...
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