In acute stroke, OSA has been found to impair rehabilitation and increase mortality but the effect of central apnea is more unclear. The aim of the present study was to evaluate the feasibility of using limited ambulatory recording system (sleep mattress to evaluate nocturnal breathing and EOG-electrodes for sleep staging) in sleep disordered breathing (SDB) diagnostics in mild acute cerebral i...

An automatic method for the classification of wakefulness and sleep stages SREM, S1, S2 and SWS was developed based on our two previous studies. The method is based on a two-channel electro-oculography (EOG) referenced to the left mastoid (M1). Synchronous electroencephalographic (EEG) activity in S2 and SWS was detected by calculating cross-correlation and peak-to-peak amplitude difference in ...

Like other biological systems, olfaction responds "homeostatically" to enduring change in the stimulus environment. This adaptive mechanism, referred to as compensatory plasticity, has been studied almost exclusively in developing animals. Thus it is unknown if this phenomenon is limited to ontogenesis and irreversible, characteristics common to some other forms of plasticity. Here we explore t...

Electroencephalography (EEG) is a non-invasive way of recording brain activities, making it useful for diagnosing various neurological disorders. However, artifact signals associated with eye blinks or the heart spread across the scalp, contaminating EEG recordings and making EEG data analysis difficult. To solve this problem, we implement a common methodology to suppress both cardiac and ocula...

THE eyeball may be regarded as a small battery, with a positive pole in the cornea and a negative pole in the retina. The work of Fenn and Hursh (1937), Frangois, Verriest, and de Rouck (1957), and others, suggests that the corneo-retinal potential is associated primarily with the retinal receptors; Brindley (1956) has suggested that the resting potential of the lens may contribute to it, and i...

The patients with diseases that cause severe movement disabilities was noticeably increasing. These made unable to carry out their daily activities or interact external environment. However, the existence of human-computer interfaces (HCI) gave those a new hope be able once again. HCI enabled these communicate environment by recognizing eyes. Eye movements are recorded an electro-oculogram (EOG...

1 Electronics and Telecommunications Engineering Dept., Jadavpur University, Kolkata, West Bengal, India. e-mail: [email protected] Computer Science & Engineering Dept., JIS College of Engineering,Kalyani, West Bengal, India. 3 Electronics & Communication Engineering Dept., Kalyani Govt. Engineering College, Kalyani, India. Abstract – In the past few years, like other fields, rapid expansi...

This paper describes the voluntary eye blink detection method using electrooculogram (EOG). There are still challenge problems to put brain-computer interface (BCI) systems to real-life applications. In general BCI systems, there is a possibility of incorrect and unintentional input because input is automatically selected even if the requirements are accidentally met. This study aims to propose...