Yr13 Biorhythms Key Terms

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DefinitionKey Term
Explanation for functions of sleep, stating it has developed as an advantageous behaviour
Hormone vital for many biorhythms, levels of which increase at night and decrease when light
EEG reading with regular pattern, found in deep sleep
Term for animals active during the day
Shifting our body clock forwards, e.g. through shift work or jet lag
Scary dreams
An environmental factor affecting biorhythms
According to Horne, a term to describe REM and deepest stages of sleep. So called because it is vital
Records electrical activity in the brain, aka E.E.G.
EEG reading with no regular pattern, found when awake and when in REM sleep
Feeling of tiredness after long plane journeys
What biorhythms do in the absence of zeitgebers
Depression during the winter months, aka S.A.D.
An internal clock affecting biorhythms
Rate at which animals burn up resources
Shifting our body clock backwards, e.g. through shift work or jet lag
Conditions that lead to loss of sleep and as a result cause daytime tiredness, e.g. Insomnia
A biorhythm with a cycle lasting more than a day
According to Horne, the lighter stages of NREM: non essential
A biorhythm with a cycle lasting less than a day
Small brain structure controlled by SCN that secretes Melatonin
Genetic condition most often typified by the sufferer experiencing cataplexy while awake
Insomnia that has no obvious cause
DefinitionKey Term
Term for animals active at night
Events occuring during sleep that DON'T lead to daytime sleepiness, e.g. nightmares, sleepwalking
Neurotransmitter important in sleep and arousal and feeding behaviour
Neurotransmitter vital for emotional states, sleep and depression
Rare genetic condition where a person develops severe insomnia and eventually dies because of it
Deep sleep where dreaming doesn't occur, characterised by large, slow EEG waves
Walking while asleep, obviously.
Person awakes scared, disoriented and confused: NOT a type of nightmare
Insomnia caused by pre-existing conditions
States that sleep is needed to help the body recuperate
A regular pattern of physiological, behavioural or cognitive behaviour
Sleep disorder where people have issues sleeping
In the RF, a set of neurones that control REM sleep and secrete noradrenaline
Sleep type associated with dreaming
Lifelong serious insomnia beginning in childhood: no obvious cause
group of neurones in the RF that control NREM and secrete serotonin
A biorhythm with a cycle lasting 24 hours
An animal's living conditions
Frequent episodes in sleep where breathing stops for a few seconds
Small group of neurons in the hypothalamus: linked to maintaining sleep patterns
aka RF: network of millions of neurones deep in the brain in charge of sleep and wake regulation
The phenomenon where people deprived of REM sleep recover missed REM time
Working patterns that involve working different sets of hours

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Created Apr 2, 2010ReportNominate
Tags:definition, key, Key Terms, term