Understanding Sleep

What characteristic allows a strong enough sensory stimulus to awaken a sleeper?

• Sensory adaptation

• Reversibility characteristic

• Sensory overload

• Sensory deprivation

What are cyclic changes in bodily functions or activities that repeat themselves through time in the same order called?

• Random cycles

• Biological rhythms

• Irregular patterns

• Constant cycles

What do biological rhythms help regulate in the body?

• Body temperature

• Hair color

• Nail length

• Skin texture

What do our biological rhythms and neurological clocks influence?

• Our ability to learn new languages

• What time of day we are most alert, hungry, tired, or physically primed to undertake various activities

• Our preference for certain types of food

• Our social interactions

What does the brain coordinate to function in a synchronized way?

• All the biological clocks

• All the muscles in the body

• All the sensory organs

• All the digestive processes

What is the primary function of the 'master clocks' in the brain?

• To regulate sleep patterns

• To coordinate all biological clocks

• To control hunger

• To manage stress levels

What time of day are we most likely to experience the highest cardiovascular efficiency and muscle strength?

• Early morning

• Late afternoon

• Midnight

• Noon

What is the primary role of the Superchiasmatic Nucleus (SCN)?

• Regulate heart rate

• Control digestion

• Act as the master clock for circadian rhythms

• Manage blood pressure

What is the effect of a time-free environment on the sleep-wake cycle?

• It becomes shorter

• It becomes free-running and tends to be pushed forward

• It becomes more regular

• It stops completely

What does the color gray represent in the circadian rhythm chart?

• Awake

• Deep Sleep

• REM Dreaming Sleep

• Light Sleep