biopsychology not in exam

Question 1

What are Endogenous Pacemakers?

Answer 1

Mechanisms within the body that govern the internal, biological bodily rhythms.

Question 2

What are exogenous zeitgebers?

Answer 2

An environmental cue, such as light, that helps to regulate the biological clock in an organism

Question 3

What are Infradian rhythms?

Answer 3

Rhythms that have a duration of over 24 hours, and may be weekly, monthly or even annually.

Question 4

What are Ultradian rhythms?

Answer 4

Cycles that last less than 24 hours, such as the cycle of sleep stages that occur throughout the night.

Question 5

What is a circadian rhythm?

Answer 5

A pattern of behaviour that occurs or recurs approximately every 24 hours, and which is set and reset by environmental light levels.

Question 6

What is a sleep-wake cycle?

Answer 6

refers to alternating states of sleep and waking that are dependent on the 24-hour circadian cycle.