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New user authentication method based on eye-writing patterns identified from electrooculography for virtual reality applications.
Biomed Eng Lett
January 2025
Department of Electronic Engineering, Hanyang University, Seoul, 04763 Republic of Korea.
Demand for user authentication in virtual reality (VR) applications is increasing such as in-app payments, password manager, and access to private data. Traditionally, hand controllers have been widely used for the user authentication in VR environment, with which the users can typewrite a password or draw a pre-registered pattern; however, the conventional approaches are generally inconvenient and time-consuming. In this study, we proposed a new user authentication method based on eye-writing patterns identified using electrooculogram (EOG) recorded from four locations around the eyes in contact with the face-pad of a VR headset.
View Article and Find Full Text PDFComparative Analysis of Single-Channel and Multi-Channel Classification of Sleep Stages Across Four Different Data Sets.
Brain Sci
November 2024
Department of Neurology, Beth Isreal Deaconess Medical Center, Harvard Medical School, Harvard University, Cambridge, MA 02215, USA.
: Manually labeling sleep stages is time-consuming and labor-intensive, making automatic sleep staging methods crucial for practical sleep monitoring. While both single- and multi-channel data are commonly used in automatic sleep staging, limited research has adequately investigated the differences in their effectiveness. In this study, four public data sets-Sleep-SC, APPLES, SHHS1, and MrOS1-are utilized, and an advanced hybrid attention neural network composed of a multi-branch convolutional neural network and the multi-head attention mechanism is employed for automatic sleep staging.
View Article and Find Full Text PDFSleep duration at night affects daytime wake EEG spectra.
Med J Armed Forces India
December 2024
Medical Cadet, Armed Forces Medical College, Pune, India.
Background: Sleep deprivation leads to decreased performance, alertness and degradation in the health status of a person. Often the person remains unaware of the reduced alertness and may end up taking inaccurate decisions. There was a need to study the sleep duration of college goers and to study the effect of total night-time sleep duration on daytime Electroencephalogram (EEG) characteristics.
View Article and Find Full Text PDFAperiodic neural activity distinguishes between phasic and tonic REM sleep.
J Sleep Res
December 2024
Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands.
Traditionally categorized as a uniform sleep phase, rapid eye movement sleep exhibits substantial heterogeneity with its phasic and tonic constituents showing marked differences regarding many characteristics. Here, we investigate how tonic and phasic states differ with respect to aperiodic neural activity, a marker of arousal and sleep. Rapid eye movement sleep heterogeneity was assessed using either binary phasic-tonic (n = 97) or continuous (in 60/97 participants) approach.
View Article and Find Full Text PDFEffect of zonisamide on sleep and rapid eye movement sleep behavioral disorders in patients with Parkinson's disease: A randomized control trial.
Clin Park Relat Disord
November 2024
Department of Neurology, Nara Medical University, Kashihara, Nara, Japan.
Introduction: Zonisamide is a medication developed in Japan that is effective for motor symptoms and wearing off in Parkinson's disease (PD). Zonisamide has properties that may improve sleep disorders. The aim of this study is to verify the safety and efficacy of zonisamide for sleep disorders and rapid eye movement (REM) sleep behavioral disorders (RBD) using a mobile two-channel electroencephalography /electrooculography recording system in patients with PD.
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