16. Biological Rhythms: Infradian And Ultradian Rhythms AO3 Flashcards Preview

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Flashcards in 16. Biological Rhythms: Infradian And Ultradian Rhythms AO3 Deck (9)
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1
Q

Name two strengths of infradian and ultradian rhythms

A
  1. Evidence supports different stages of sleep

2. Research into SAD is its practical application

2
Q

Explain how research supports different stages of sleep

A

Researcher monitored sleep patterns of 9 participants in a sleep lab - found evidence for stages of sleep - specifically REM

3
Q

What did research evidence that supports different stages of sleep show

A

R.E.M. activity correlated with dreaming - brain activity varied according to how vivid dreams were

4
Q

What can therefore be concluded from the research evidence that supports different stages of sleep

A

Suggests R.E.M. Sleep is a distinct ultradian rhythm -important component of ultradian sleep cycle

5
Q

Explain how research into SAD acts as practical application

A

Affective therapy for SAD is phototherapy - lightbox stimulates strong light in morning and evening - relieves symptoms for 60% of sufferers

6
Q

Explain a contradictory argument for phototherapy

A

Placebo effect found in 30% - casts doubt on real value of phototherapy - may only be affective because of expectations

7
Q

Name a limita of infradian and ultradian rhythms

A

Research in this area uses animal studies

8
Q

Outline some animal research to support infradian and ultradian rhythms

A

Role of pheromones in animal sexual behaviour is well documented - the basis of most of our knowledge

9
Q

Explain how the use of animal studies is an issue

A

Evidence for effects of pheromones on human behaviour remains speculative and inconclusive