Unit 4 AOS 1 Revision 1

Which is the most accurate description of normal waking consciousness?

• Analysing internal thoughts and external conversations

• Awareness of one’s self and the world that surrounds them

• Understanding the world around us

• Ability to react to internal thoughts

The proportion of rapid eye movement (REM) sleep to non-rapid eye movement (NREM) sleep is

• equal across the life span

• greater in infancy than later in the life span

• lower at birth and equal in later adolescence

• lower at birth and higher in later adolescence

According to the restoration theory of sleep, we sleep to

• recover physically and mentally from the energy that is expended during the day.

• make ourselves inactive and protect ourselves at the time we are most vulnerable to predators.

• strengthen neural connections in the brain and consolidate memories.

• experience deep sleep at night, which enhances our chances of survival.

  Circadian rhythm refers to .

• biological ryhtms that occure from 1 month to a year
• hibernation
• biological ryhtm that occurs within a 24 hour period
• hunger

The period of the sleep cycle when most dreaming occurs is

• 1
• REM
• NREM
• 4

Jose went to sleep at midnight but woke up at 6 AM. As a result, he did not experience enough of this stage of sleep.

• Stage 2

• Stage 3

• REM

• Stage 1

The tendency for REM  sleep to increase following REM sleep depriivation 

• REM rebound 
• NREM sleep
• Stage 2 sleep
• awakness

The hormone most closely related to one's sleep pattern is:

• Serotonin
• Dopamine
• Norepinephrine
• Melatonin

Approximately how many cycles of sleep does an adult enter during a full night’s sleep?

• Six to seven
• Three to four
• One to two
• Four to five

Sleep deprivation can lead to 

• diminished productivity
• increased weight gain
• irritability
• all of the above