Yr13 Biorhythms Key Terms

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

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