Circadian Rhythms (Biopsychology)

Question 1

What is a circadian rhythm?

Answer 1

• A biological rhythm which takes place over 24 hours approx
• E.g. Sleep-wake cycle which is reset by light, body temperature, hormone production

Question 2

What are biological rhythms regulated by?

Answer 2

• Endogenous pacemakers and exogenous zeitgebers

Question 3

What are endogenous pacemakers?

Answer 3

• The body’s internal structures that control and regulate rhythms —> can be influenced by the environment