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Visual mismatch negativity (v-MMN) in electroencephalographic (EEG) record provides an index of pre-attentive information processing of the brain. v-MMN is considered to reflect schizophrenia. The positive and negative syndrome scale (PANSS) is usually used in clinical diagnosis on patients with schizophrenia for estimating the degree of disorder. In this study, the relationship between v-MMN and...
Quantitative analysis and detection of abnormalities for electroencephalogram (EEG) recordings during evoked activities are essential for clinical diagnosis on neurological disorders. However, the process of interpreting EEG is time consuming and requires experienced electroencephalographers (EEGers). In this study, a method of automatic EEG interpretation during hyperventilation was proposed. The...
This paper proposes a real time evaluation method for different types of bio-neurological signals. In this method, multiple types of bio-neurological signals can be automatically processed in a single system in real time, including EEG, EMG, EOG, etc. It can display the wave shapes of these signals, calculate the feature parameters, indicate various kinds of artifacts contaminating in the signals,...
Deep brain stimulation (DBS) is a effective treatment method for patients with Parkinson's disease (PD). In this study, a quantitative evaluation for the availability of DBS operation to PD patients were done by use of a visual tracking test. Visual target with random trajectory was adopted and the hand movement of three PD patients were recorded in the state before and after surgery. Parameters related...
In this study, quantitative evaluation of spiral drawing by patients with movement disorder was investigated in order to extract characteristics of hand movement disabilities. The hand movement of circular spiral drawing was recorded by a digitized tablet. A method of polar coordinate system with varied origin was proposed for evaluation. A set of characteristic parameters were also defined and calculated...
Irritable bowel syndrome(IBS) is suggested to be diagnosed with evaluating large bowel peristalsis. Video capsule endoscopy(VCE) enables a clinician to observe natural peristalsis of the gastrointestinal tract. In our pilot study, about 80% of PillCamtrade SB(Given Imaging Ltd., Yoqneam, Israel) capsule endoscopes (CEs) which were originally designed for viewing the small intestine reached cecum and...
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