Contamination of EOG activities in EEG signals remains a significant problem in designing the hybrid BCI system. Since EEG signals have always been contaminated by EOG artifacts, we employ these artifacts as inputs into our system. Therefore, in this study we utilized theEEG and its EOG artifacts as inputs to the hybrid BCI and evaluated the classification performance between thresholding and c...

Drought is a significant climatic disturbance in grasslands, yet the impact drought caused by global warming has on grassland phenology is still unclear. Our research investigates the long-term variability of grassland phenology in relation to drought in the Canadian prairies from 1982 to 2014. Based on the start of growing season (SOG) and the end of growing season (EOG) derived from Global In...

In this work, a MATLAB-based graphical user interface is proposed for the visual examination of several eye movements. The solution algorithm-based, which localizes area movement, removes artifacts, and calculates view trajectory in terms direction orb deviation. To compute algorithm, five-electrode configuration needed. goodness has been validated, at Clinic Child Neurology University Hospital...

The presented study was conducted to analyse the electrooculography signal. We have computed the smooth pursuit eye movements gain before and after subcutaneous apomorphine administration. The results showed significant differences between groups of patients and healthy volunteers.

OBJECTIVE Covert aspects of ongoing user mental states provide key context information for user-aware human computer interactions. In this paper, we focus on the problem of estimating the vigilance of users using EEG and EOG signals. APPROACH The PERCLOS index as vigilance annotation is obtained from eye tracking glasses. To improve the feasibility and wearability of vigilance estimation devi...

BACKGROUND AND PURPOSE New-onset headache in elderly patients is generally suggestive of a high probability of secondary headache, and the subtypes of primary headache diagnoses are still unclear in the elderly. This study investigated the characteristics of headache with an older age at onset (≥65 years) and compared the characteristics between younger and older age groups. METHODS We prospe...

This paper presents a technical solution that analyses sleep signals captured by biomedical sensors to find possible disorders during rest. Specifically, the method evaluates electrooculogram (EOG) signals, skin conductance (GSR), air flow (AS), and body temperature. Next, a quantitative sleep quality analysis determines significant changes in the biological signals, and any similarities betwee...

The aim of this work was to model electro-oculogram (EOG) to find optimal electrode positions for wearable human-computer interface system. The system is a head cap developed in our institute and with it we can measure EOG and facial electromyography (fEMG) and those can be used to control the computer interface: gaze direction moves the cursor and muscle activations correspond to clicking. In ...

Electric potentials are generated across the Cornea and Retina of the eyes as a result of the movement of eyeballs within the conductive environment of the skull. This is referred to as the Cornea-Retinal Potential (CRP) and is the source of the Electrooculogram (EOG) signal. Since the occurrence of DC drifts and numerous artifacts along with power-line interference had made the EOG signal quit...