Maisarah Mahusin Block 5 5/4/2015 Dement & Kleitman experiment is to find out the relation of eye movements during sleep to dream activity. There are three hypotheses that they wanted to test in this study‚ first there will be a significant association between REM and dreaming‚ second there will be a significant positive correlation between the estimate of time spent dreaming and the length of eye movement
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Stages of Sleep The EEG (Electroencephalogram)of a waking person is clearly different than that of a sleeping person. The difference in EEG patterns that occur during sleep has made it possible to divide sleep into five different stages. Stage One We experience stage one of sleep when we are half asleep and half awake; our eyelids feel heavy‚ we feel groggy and suddenly without notice we fall asleep. Stage one counts for more or less 5% our total sleep during the night. Stage
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Definition Description Consciousness Our awareness of ourselves and our environment (can take different forms) Cognitive neuroscience The interdisciplinary study of the brain activity linked with cognition (including perception‚ thinking‚ memory and language) Dual processing The principle that information is often simultaneously processed on separate conscious (deliberate‚ high road) and unconscious (automatic‚ low road) tracks. Selective attention The focusing of conscious awareness on
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"The foundation for much of what we know about sleep was gathered approximately 40 years ago by researcher‚ Michel Jouvet. This French scientist studied the effects of gross brain lesions and brain transections on sleep behavior and related phenomena. It was Jouvet who first suggested that a brainstem region is responsible for the initiation of events that result in the stage of sleep called REM sleep. REM sleep is a stage associated with rapid eye movements‚ a high degree of brain wave activity
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There are four stages of sleep‚ stage 1 occurs when the person decides it’s time to fall asleep. Initially in stage 1 alpha waves start waxing and waning bursts of 8-12 Hz’s EEG. This is when we are alert at our wake fullness. Stage one sleep RRG is low voltage but high frequency signal. As the stages progress into stage 2 there’s a gradual increase in EEG voltage and decrease in EEG frequency. Stage 2 has a higher amplitude and lower frequency and also has two wave forms‚ k complexes and sleep spindles
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Chapter 5 Sleepwalking stage 3 and 4 gets up and walks while asleep‚ sometimes open eyes behaviors: getting knives‚ walking in yard/street‚ physically/verbally attacking cooking/eating getting into car telehoonne moving furniture feeding pets dressing bathing impaired cognitive functioning difficult to wake peaks at 11 years‚ happens in 40% of children Sleep talking non-REM sleep more common in children than adults talking: monotone or loud doesn’t really disrupt the person
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INTRODUCTION Although EEG is designed to record cerebral activity‚ it also records electrical activities arising from sites other than the brain. These unwanted chunks of electrical activity are termed artifacts and may be divided into physiological and non-physiological artifacts. Physiological artifacts are generated from sources other than the brain (i.e.‚ any other part of the body like the eyes‚ other voluntary and involuntary muscles) and involve head or limb motion and muscular tension. On
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14 may be a possible EEC. Moreover‚ the calculated compensation temperature by inverting the straight line slope‚ T comp = 57.9 ºC‚ is higher than the average experimental value‚ T exp = 32.5 ºC. This great difference between these two values of temperatures might reflect the existence of real EEC rather than experimental error [58]. Another evidence of EEC is the approximate constant ∆G # with a significant change in both ∆H # and ∆S # . Finally‚ EEC was also investigated by using
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advances in brain examination have alleviated those challenges‚ making it possible to explore and investigate the brain in depth. Electroencephalography (EEG) is used to monitor and test electrical activity in the brain. The first EEG was developed in the 1920s by Hans Berger‚ which was first used in 1924 to assess electrical current in the brain. Electroencephalography is conducted when electrodes are placed and attached to the scalp;
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Febrile seizures are considered a separate disease classification from epilepsy‚ and approached with a unique set of diagnostic and treatment criteria. They are common‚ occurring in 2-5% of children age 6 months to 5 years and of note for this particular case‚ occur in 5-10% of Indian children. (Chung‚ 2014). With regard to incidence‚ Change (2014) states that there are two peak seasons: November-January as a result of increased prevalence of viral upper respiratory illness‚ and June-August‚ related
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