LI.1.23 - The purpose of sleep

Which theory of sleep suggests that sleep is important for restoring the body's physical and mental resources?

• Restoration theory
• Evolutionary theory
• Circadian rhythm theory
• Activation-synthesis theory

According to the evolutionary theory, why do animals have different sleep patterns?

• Due to their dietary needs
• Based on their habitat
• To conserve energy
• To restore brain function

The restoration theory of sleep argues that sleep evolved to conserve energy and protect animals during periods of inactivity.

• True
• False

Briefly compare the restoration and evolutionary theories of sleep in terms of their main focus.

Which theory posits that sleep has evolved to enhance an organism's survival, rather than to fulfill physiological needs?

• Restoration theory
• Evolutionary theory
• Circadian rhythm theory
• Activation-synthesis theory

Which theory suggests that sleep helps in the repair and rejuvenation of the immune system, muscles, and various other bodily structures?

• Restoration theory
• Evolutionary theory
• Circadian rhythm theory
• Activation-synthesis theory

Sleep is primarily for brain plasticity, according to the restoration theory.

• True
• False

Discuss how the evolutionary theory of sleep differs from the restoration theory in explaining the purpose of sleep.

How does the restoration theory explain the increased need for sleep after physical or mental exertion?

• By suggesting it's a response to conserve energy
• By suggesting it's a response to restore depleted resources
• By suggesting it's a response to environmental dangers
• By suggesting it's a response to social interaction needs

Which theory would support the idea that animals sleep based on the risk of predation they face in their environment?

• Restoration theory
• Evolutionary theory
• Circadian rhythm theory
• Activation-synthesis theory