Sleep at University Of South Australia | Flashcards & Summaries

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Lernmaterialien für Sleep an der University of South Australia

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EEG & EOG & EMG

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EEG - measures brainwaves

EOG - measures eye movements

EMG - measures muscle tone

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Explain why shiftwork is associated with increased accident risk 


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Our biology promotes daytime wakefulness and sleep at night. Shiftworkers often work when their bodies are primed for sleep, and sleep when their bodies are primed for wake. This disruption in circadian rhythms results in sleep of reduced duration and quality. Circadian disruption and sleep loss increase accident risk. 

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What is primary insomnia?

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sleeplessness that cannot be attributed to an existing medical, psychiatric or environmental cause (such as drug abuse or medications). Can be treated with CBT, stimulants, drugs

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What is sleep?

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A change in consciousness or environmental awareness

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What are circadian rhythms?

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near-24 hour rhythms in functioning. controlled by SCN, prime us to be awake during the day and to be asleep at night.


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A single sleep period has a higher value than

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split sleep

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Circadian rhythms control

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sleep wake cycle, body temp, hormone production, alertness/performance

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Explain the potential cycle of impairment associated with obstructive sleep apnoea (OSA). 


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OSA can lead to sleepiness, performance impairment and depressed mood, which in turn, can lead to further health complications. Together, this can influence exercise levels and diet, which can lead to weight gain, which exacerbates OSA. 

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What causes fatigue?

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Time of day/circadian influences

Hours of prior sleep

Work

Social, family, environment, lifestyle factors


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What is the SCN, and what is its function? 


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The suprachiasmatic nucleus (SCN) in the hypothalamus is the primary circadian pacemaker in the body. It keeps our circadian (24 hour) rhythms in functioning synchronised to each other and to the outside light/dark cycle – receiving light input through the eye via the retinohypothalamic tract. 

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What is the most common sleep disorder?

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Obstructive Sleep Apnoea (4% - 1 in 4 adults)

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When do you experience SWS and REM?

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SWS - first half of the night

REM - second half of the night

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  • 1365 Karteikarten
  • 90 Studierende
  • 0 Lernmaterialien

Beispielhafte Karteikarten für deinen Sleep Kurs an der University of South Australia - von Kommilitonen auf StudySmarter erstellt!

Q:

EEG & EOG & EMG

A:

EEG - measures brainwaves

EOG - measures eye movements

EMG - measures muscle tone

Q:

Explain why shiftwork is associated with increased accident risk 


A:

Our biology promotes daytime wakefulness and sleep at night. Shiftworkers often work when their bodies are primed for sleep, and sleep when their bodies are primed for wake. This disruption in circadian rhythms results in sleep of reduced duration and quality. Circadian disruption and sleep loss increase accident risk. 

Q:

What is primary insomnia?

A:

sleeplessness that cannot be attributed to an existing medical, psychiatric or environmental cause (such as drug abuse or medications). Can be treated with CBT, stimulants, drugs

Q:

What is sleep?

A:

A change in consciousness or environmental awareness

Q:

What are circadian rhythms?

A:

near-24 hour rhythms in functioning. controlled by SCN, prime us to be awake during the day and to be asleep at night.


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Q:

A single sleep period has a higher value than

A:

split sleep

Q:

Circadian rhythms control

A:

sleep wake cycle, body temp, hormone production, alertness/performance

Q:

Explain the potential cycle of impairment associated with obstructive sleep apnoea (OSA). 


A:

OSA can lead to sleepiness, performance impairment and depressed mood, which in turn, can lead to further health complications. Together, this can influence exercise levels and diet, which can lead to weight gain, which exacerbates OSA. 

Q:

What causes fatigue?

A:

Time of day/circadian influences

Hours of prior sleep

Work

Social, family, environment, lifestyle factors


Q:

What is the SCN, and what is its function? 


A:

The suprachiasmatic nucleus (SCN) in the hypothalamus is the primary circadian pacemaker in the body. It keeps our circadian (24 hour) rhythms in functioning synchronised to each other and to the outside light/dark cycle – receiving light input through the eye via the retinohypothalamic tract. 

Q:

What is the most common sleep disorder?

A:

Obstructive Sleep Apnoea (4% - 1 in 4 adults)

Q:

When do you experience SWS and REM?

A:

SWS - first half of the night

REM - second half of the night

Sleep

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