Biomed Tech 2013; 58 (Suppl. 1) © 2013 by Walter de Gruyter · Berlin · Boston. DOI 10.1515/bmt-2013-4182 EEGLAB – AN OPEN SOURCE MATLAB TOOLBOX FOR ELECTROPHYSIOLOGICAL RESEARCH Clemens Brunner1 ‚ Arnaud Delorme2 and Scott Makeig2 1 2 Institute for Knowledge Discovery‚ Graz University of Technology‚ Austria Swartz Center for Computational Neuroscience‚ Institute for Neural Computation‚ University of California San Diego‚ CA‚ USA clemens.brunner@tugraz.at Abstract: EEGLAB is a widely
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The stage cycle Stage one is the beginning of the sleep cycle‚ and is a relatively light stage of sleep. Stage one can be considered a transition period between wakefulness and sleep. In Stage one‚ the brain produces high amplitude theta waves‚ which are very slow brain waves. This period of sleep lasts only a brief time (around 5-10 minutes). If you awaken someone during this stage‚ they might report that they weren’t really asleep. Stage two is the second stage of sleep and lasts for approximately
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Emilio gonzalez 8-3 Science news article Electronic skin The research method used for this article is evidence from movies and or video games to let us know what its really used for. For example and I quote ’’Placed on a forehead‚ the device can record brainwaves; on the wrist‚ blood flow and muscle movement. On the skin of sick patients‚ it can track vital signs and watch for problems‚ replacing the bulky
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To Sleep or Not to Sleep My opinion of sleep and how I actually go about it are different from each other. Generally‚ I get everything I planned for that day done before I allow myself to sleep‚ especially if there is homework involved. However‚ I fully believe people should reorganize their life‚ so they are able to get enough sleep each night. I believe this for several reasons: the consequences of sleep deprivation are serious‚ may improve vitality‚ and sleep is the time to allow the brain to
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Words formed into melodies have been the most powerful message‚ allowing people to comprehend emotion for over 5‚000 years. The way words are placed between beats gives a hypnotic message to your body and changes the state of your brain. But is music just that? A series of notes and precisely placed words? This is what I have set out to discover. What effect does music have on humans? When listening to a good song you feel a sense of relaxation and calm within your body. Often we stop what we’re
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Polysomnography is a sleep study test performed by a qualified sleep technologist in an effort to diagnose sleep disorders. Sleep is defined as a “naturally occurring state of unconsciousness‚ diminished activity of the skeletal muscles‚ and depressed metabolism from which a person can be awakened by stimulation” [AP]. A polysomnogram is a recorded study used to measure multiple physiologic variables and phases of sleep. This involves the use of certain equipment which allows the polysomnographist
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To feel happy is something that seems to be a universal desire. However defining the feeling of happiness is not an easy thing to do. It can be described as a range of positive emotions ranging from contentment to joy (Spoors et al 2011). There are many factors that influence happiness both from within as well as outside a person. Inside influences would involve the brain and the biology of the individual. Outside factors would include relationships and social identity. Research has shown that
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A large portion of our lives are spent in one particular state of consciousness. This state is sleep‚ it is critical to our health and daily functioning. With my roommate coming home at various hours of the night‚ my sleep is disrupted impacting my health and daily functioning. In a typical night’s sleep a person passes through five stages. These stages progress in a cycle from stage 1 to rapid eye movement‚ also known as REM. I will describe each of the five cycles and how they are critical to health
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REM sleep is the process of phases in which there is low physical movement‚ and the propensity of the sleeper to dream vividly. The phase is also known as paradoxical sleep and sometimes desynchronized sleep because of the physiological similarities to being awake‚ including rapid‚ low-voltage desynchronized brain waves. The right and left hemispheres of the brain are more coherent in REM sleep‚ especially during lucid dreams. Two other neurotransmitters seem to promote wakefulness‚ diminish during
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Stage 1 sleep Stage 1 sleep is experienced as falling to sleep and is a transition stage between wake and sleep. It usually lasts between 1 and 5 minutes and occupies approximately 2-5 % of a normal night of sleep. This stage is dramatically increased in some insomnia (restless legs) and disorders that produce frequent arousals such as apnea . Stage 2 sleep Stage 2 sleep follows stage 1 sleep and is the baseline of sleep. This stage is part of the 90 minute cycle and occupies approximately 45-60%
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