Yazar "Aydemir, Önder" için listeleme
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Beyin-bilgisayar arayüzü uygulamalarında etkin kanalların belirlenmesi
Yavuz, Ebru; Aydemir, Önder (Ieee, 2017)Brain computer interface systems are modeled to facilitate lives of patients who have not a problem in their cognitive functions but also can not move their muscles. the performance of such systems highly depends on features ... -
Classification of brain responses to the various spice odors
Aydemir, Önder; Altun, Hilal; Ergün, Ebru (Ieee, 2018)Since one of the main goal of the human brain is to take and evaluate stimuli that comes from sensory organs, it is possible to measure their functionality. in this study we classified the electroencephalography signals ... -
Classification of EEG based BCI signals imagined hand closing and opening
Yavuz, Ebru; Aydemir, Önder (Ieee, 2017)Brain-computer interfaces allow people to manage electronic devices such as computers without using their motor nervous system. When the brain is in a function, nerve cells in the brain communicate with each other with ... -
Classification of electroencephalography signals recorded during olfaction of some spices
Altun, Hilal; Ergün, Ebru; Aydemir, Önder (Ieee, 2018)Responses to different information from the sensory organs of the brain can be analyzed by various brain imaging techniques. Among these techniques, electroencephalography (EEG) is widely used because it is performed at a ... -
Classification of motor imaginary based near-infrared spectroscopy signals
Ergün, Ebru; Aydemir, Önder (Ieee, 2018)Near Infrared spectroscopy (NIRS) is a brain imaging technique that measures hemodynamic activity in the human brain cortex with special wavelengths (infrared) in the light. the use of this technique in brain-computer ... -
Comparison of post-tonsillectomy morbidity in cases of sleep apnoea where surgery employed either cold knife or coblation techniques
Oğhan, Fatih; Güvey, Ali; Aydemir, Önder; Erdoğan, Onur; Topuz, Muhammet Fatih; Çeliker, Metin; Terzi, Suat; Akbal, Seçkin (Deomed Publ, Istanbul, 2018)Objective: To compare the snare and coblation methods in terms of post-tonsillectomy morbidity for patients with obstructive sleep apnoea. Method: the study involved 49 cases. Twenty-one patients were operated on using the ... -
Decoding of binary mental arithmetic based near infrared spectroscopy signals
Ergün, Ebru; Aydemir, Önder (Ieee, 2018)There has been an increase interest for functional near-infrared spectroscopy (MRS) in recent years since it is a non-invasive technique as well as few restrictions to the subjects and not affected by electrical noise. in ... -
Determination of hypertension disease using chirp z-transform and statistical features of optimal band-pass filtered short-time photoplethysmography signals
Aydemir, Tuğba; Şahin, Mehmet; Aydemir, Önder (Iop Publishing Ltd, 2020)Hypertension is the condition where the normal blood pressure is high. This situation is manifested by the high pressure of the blood in the vein towards the vessel wall. Hypertension mostly affects the brain, kidneys, ... -
EEG+YKS tabanli beyin bilgisayar arayüzü sistemlerinde makine öğrenme tekniklerinin kullanimina i̇lişkin i̇nceleme
Ergün, Ebru; Aydemir, Önder; Korkmaz, Onur Erdem (2024)Beyin-bilgisayar arayüzü (BBA), kişinin beyin aktivitesini algılayan ve bu aktiviteyi bir bilgisayar veya diğer dış cihazlarla iletişim kurmak için kullanılabilir bir formata çeviren sistemdir. BBA sistemleri için çeşitli ... -
Etkin epoklar ile motor hayaline dayalı EEG işaretlerinin sınıflandırma doğruluğunun artırılması
Ergün, Ebru; Aydemir, Önder (2018)Beyin bilgisayar arayüzleri (BBA) sadece beyinde üretilen işaretleri kullanarak çeşitli elektronik cihazları kullanmayı olanaklı hale getiren sistemlerdir. Bu sistemlerin yüksek başarımlı olabilmesi için bu işaretlerden ... -
Gender recognition from PPG signals of people with different blood pressure
Aydemir, Tuğba; Şahin, Mehmet; Aydemir, Önder (IEEE, 2021)Photoplethysmography (PPG) is an opto-electronic technique that measures the blood volume within micro-vascular tissue. Studies based on measuring blood pressure level with PPG have been widely used. In this study, gender ... -
A hybrid BCI using singular value decomposition values of the fast walsh-hadamard transform coefficients
Ergün, Ebru; Aydemir, Önder (IEEE, 2023)One of the main goals of a brain computer interface (BCI) is to enable a communication channel between the brain and electronic devices by converting neural activity into control commands either for devices or applications. ... -
Investigating the informative brain region in multiclass electroencephalography and near infrared spectroscopy based BCI system using band power based features
Ergün, Ebru; Aydemir, Önder; Korkmaz, Onur Erdem (Taylor & Francis Ltd., 2024)In recent years, various brain imaging techniques have been used as input signals for brain-computer interface (BCI) systems. Electroencephalography (EEG) and near-infrared spectroscopy (NIRS) are two prominent techniques ... -
A new evolutionary preprocessing approach for classification of mental arithmetic based EEG signals
Ergün, Ebru; Aydemir, Önder (Springer, 2020)Brain computer interface systems decode brain activities from electroencephalogram (EEG) signals and translate the user's intentions into commands to control and/or communicate with augmentative or assistive devices without ... -
A new method for activity monitoring using photoplethysmography signals recorded by wireless sensor
Aydemir, Tuğba; Şahin, Mehmet; Aydemir, Önder (Springer Heidelberg, 2020)Purpose Different kinds of sensors such as accelerometers and gyroscopes have been used for inferring, predicting, and monitoring human activities for various kinds of applications, including human-computer interaction, ... -
Olfaction recognition by EEG analysis using wavelet transform features
Yavuz, Ebru; Aydemir, Önder (Ieee, 2016)The responses of the brain into different information coming from sense organs could be analyzed by various kinds of measuring techniques. Among the existing techniques, Electroencephalography (EEG) is widely used because ... -
A robust and subject-specific sequential forward search method for effective channel selection in brain computer interfaces
Aydemir, Önder; Ergün, Ebru (Elsevier Science Bv, 2019)Background: the input signals of electroencephalography (EEG) based brain computer interfaces (BCI) are extensively acquired from scalp with a multi-channel system. However, multi-channel signals might contain redundant ... -
Sequential forward mother wavelet selection method for mental workload assessment on N-back task using photoplethysmography signals
Aydemir, Tuğba; Şahin, Mehmet; Aydemir, Önder (Elsevier, 2021)The increasing demands of a cognitive task require additional brain resources. This demand, known as mental workload, can lead to deteriorated task performance. Therefore, assessment of mental workload can provide a proper ... -
Zihinsel aritmetik tabanlı EEG sinyallerinden öznitelik çıkartımı
Yavuz, Ebru; Aydemir, Önder (Ieee, 2017)Analysis of mental arithmetic based electroencephalography (EEG) signal can be helpful for patients who have difficulty learning or understanding arithmetic or have autism spectrum disorders. It is difficult to separate ...
