Yr13 Biorhythms Key Terms

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Can you name the Yr13 Biorhythms Key Terms?

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

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