نتایج جستجو برای: eog
تعداد نتایج: 730 فیلتر نتایج به سال:
سابقه و هدف: توکسوپلاسموزیس بیماری انگلی ناشی از عفونت با توکسوپلاسما گوندئی می باشد که میتواند قسمتهای مختلف بدن را درگیر نماید و بیشترین شیوع آن در کشورهای آسیایی میباشد. روشهای مختلفی برای تشخیص اختلالات بینایی در مبتلایان به توکسوپلاسموزیس وجود دارد. یکی از این روشهای غیرتهاجمی، الکترواوکولوگرام (EOG) است که عملکرد بینایی را در مبتلایان به توکسوپلاسموزیس ارزیابی میکند. این مطالعه با ه...
This paper describes the development of a neural networks gesture recognition system whereby one can control a mobile robot by using the components of his brain wave bio-potentials. Such a system may be used as a control device through human eye-movements, facial muscle, and brain wave bio-potentials. Neural networks are trained to classify EOG data into one of two classes corresponding to two ...
In this article we introduce the analysis of eye motion as a new input modality for activity recognition, contextawareness and mobile HCI applications. We describe a novel embedded eye tracker that, in contrast to common systems using video cameras, relies on Electrooculography (EOG). This self-contained wearable device consists of goggles with dry electrodes integrated into the frame and a sma...
Animals depend on olfaction for many critical behaviors, such as finding food sources, avoiding predators, and identifying conspecifics for mating and other social interactions. The electroolfactogram (EOG) recording is an informative, easy to conduct, and reliable method to assay olfactory function at the level of the olfactory epithelium. Since the 1956 description of the EOG by Ottoson in fr...
In many animals, neurons in the olfactory system have been shown to respond not only to odorants but also to air movements. However, the manner in which the mechanical dynamics of odor stimulation affect olfactory processing remains poorly understood. Using a series of flow rates and odor concentrations from clean air to high-concentration vapors, we systematically analyzed the effects of air m...
Extensive research shows that blacks, those of low socioeconomic status, and other disadvantaged groups continue to exhibit poorer school performance compared with middle and upper-class whites in the United States' educational system. Environmental exposures may contribute to the observed achievement gap. In particular, childhood lead exposure has been linked to a number of adverse cognitive o...
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...
PURPOSE To describe the clinical and molecular characteristics of two families with autosomal dominant Best disease and atypical electrooculography (EOG). METHODS Four affected individuals from two families were ascertained. Detailed ophthalmic examinations, refraction, and biometry (anterior chamber depth [ACD] and axial length [AL]), gonioscopy, optical coherence tomography of the anterior ...
Noninvasive brain/neural controlled robots are promising tools to improve autonomy and quality of life in severe paralysis, but require biosignal recordings, such as electroencephalography (EEG) electrooculography (EOG), from various sites distributed over the user's head. This limits applicability practicality noninvasive robot control on an everyday basis. It would thus be very desirable mini...
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