VCE PSY U4AOS1 6A Sleep as a Psychological Construct

Consciousness is fixed and never changes.

• True

• False

Answer explanation

Consciousness is not fixed as it varies along a continuum.

Which of the following is true of sleep? (Select all that apply)

• Sleep is an altered state of consciousness.

• Sleep is naturally occurring.

• There are different types of sleep.

Sleep can be divided into REM, NREM, and normal waking sleep.

• True

• False

Answer explanation

Normal waking sleep does not exist. Instead normal waking describes a state of consciousness.

The brain is active during REM sleep.

• True

• False

NREM sleep is divided into _____ substages.

Which of the following best fills in the blank?

• 2

• 3

• 4

Answer explanation

Sleep is divided into two stages: NREM and REM. NREM is subdivided into three stages, whereas REM is not subdivided into any further stages.

Which of the following is most correct?

• Sleep is a regular and naturally occurring altered state of consciousness that involves a loss of awareness and disengagement with internal and external stimuli.

• Sleep is a regular and naturally occurring altered state of consciousness that involves a loss of knowledge and communication with internal and external stimuli.

Which of the following is most correct?

• REM sleep is characterised by rapid eye movement, high levels of cognitive functioning, and low levels of physical activity.

• REM sleep is characterised by rapid eye movement, high levels of brain activity, and low levels of biological activity

Which of the following is most correct?

• NREM sleep is characterised by a lack of regular eye movement and is subdivided into three different stages.

• NREM sleep is characterised by a lack of rapid eye movement and is subdivided into three different stages.

Which of the following describes a difference between REM and NREM sleep?

• The sleeper is considered to have a less active brain during REM sleep and active brain during NREM sleep.

• The body is less physically active during REM sleep whereas physical activity is possible during NREM sleep.

• REM sleep makes up approximately 75–80% of sleep, whilst NREM sleep makes up 20–25% of sleep.

• Dreaming does not occur in REM sleep but it often occurs in NREM sleep.

NREM stage 1 and NREM stage 3 both involve

• deep sleep.

• an active brain.

• a less active brain than normal waking consciousness.

• sleepwalking.