Circadian Rhythms (AQA A-Level Psychology): Quizzes

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Circadian Rhythms
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What does the term 'circadian' derive from in Latin?

'Circa' (about) and 'diem' (day)

Which type of biological rhythm occurs multiple times during a single day?

Ultradian rhythms

What are internal body clocks called?

Endogenous pacemakers

In Siffre's cave study, what duration did his free-running biological rhythm settle to?

Approximately 25 hours

In Folkard et al.'s study, how many of 12 participants adjusted to a 22-hour day?

Only one participant

At what time do night workers experience a circadian trough with reduced concentration?

Around 6am

What term describes how drugs are absorbed and distributed in the body?

Pharmacokinetics

What did Czeisler et al. (1999) show about artificial light?

Rhythms could adjust from 22-28 hrs

What term describes people who prefer early bedtimes and early rising?

'Larks'

What causes free-running rhythms to align with our 24-hour day?

Entrainment by exogenous zeitgebers

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