Circadian, Infradian and Ultradian Rhythms (OCR A-Level Psychology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What are biological rhythms?
What are biological rhythms?
Patterns of body activity at cyclical times
How long does a circadian rhythm take to complete one full cycle?
How long does a circadian rhythm take to complete one full cycle?
24 hours
Which type of rhythm completes a cycle more than once every 24 hours?
Which type of rhythm completes a cycle more than once every 24 hours?
Ultradian
How often does an infradian rhythm complete one full cycle?
How often does an infradian rhythm complete one full cycle?
Less than once every 24 hours
How long does a full sleep cycle take to complete?
How long does a full sleep cycle take to complete?
90 minutes
How many recognised stages of sleep are there?
How many recognised stages of sleep are there?
Five
In which stage of sleep does dreaming occur?
In which stage of sleep does dreaming occur?
Stage 5 (REM sleep)
Which stages consist of delta waves of deep sleep?
Which stages consist of delta waves of deep sleep?
Stages 3 and 4
How long did Siffre spend in the cave during his case study?
How long did Siffre spend in the cave during his case study?
Two months
What did Siffre's circadian rhythm remain between during the cave study?
What did Siffre's circadian rhythm remain between during the cave study?
24-25 hours
What did Russell et al (1980) find about menstrual cycles?
What did Russell et al (1980) find about menstrual cycles?
They synchronised via pheromones in sweat
Why is ecological validity an issue when researching ultradian rhythms?
Why is ecological validity an issue when researching ultradian rhythms?
Monitors may be invasive & alter sleep