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VCE Psychology Unit 4 AOS 1 Questions and
Answers (100% Correct Answers) Already
Graded A+
Altered state of consciousness (ASC) Ans: a state of consciousness that
is distinctly different from normal waking consciousness in terms of quality
of experience and levels of awareness
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Normal waking consciousness Ans: a state associated with being aware
and alert of our internal and external environments, we can manage our
attention and our behaviour, and our thoughts and perceptions are
organised and clear
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Sleep Ans: a naturally occurring & reversible altered state of
consciousness, characterised by a reduction in awareness and
responsiveness to external surroundings
REM sleep Ans: a stage of sleep characterized by rapid eye movements
and a high level of brain activity
NREM sleep Ans: a type of sleep characterised by a progressive decline
in physiological activity such as heart rate, blood pressure and breathing
Stage one sleep Ans: light sleep low amplitude and high medium
frequency brain wave activity
Stage two sleep Ans: light sleep, experienced the most throughout a
sleep episode, bursts of brain activity help resist being woken by
environmental stimuli such as noises.
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Stage three sleep Ans: deepest stage of sleep; chracterised by low
frequency, high amplitude brain wave activity, physiological arousal at
lowest, person is most difficult to wake up.
hypnogram Ans: a line graph of a person's sleep mapped over time
Sleep episode Ans: entire sleep in one time bracket
Psychological construct Ans: a phenomenom that cannot be
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objectively observed or measured through the collection of data, but it
is widely understood to exist
Differences between NREM and REM sleep Ans: During NREM sleep,
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physiological activity such as brain activity slows down, whereas in REM
sleep, physiological activity increases. As a night progresses, REM periods
increase in length, whereas NREM periods decrease
Stages of NREM sleep Ans: three
proportion NREM &REM sleep in a typical night for an adult? Ans: NREM
75-80%, REM 20-25%
Duration of sleep cycle Ans: 90 mins
Number of sleep cycles per night typical 8hr sleep adult Ans: 4-5
Electroencephalography (EEG) Ans: electrodes are attached to skull to
detects, amplifies and records the electrical activity of the brain,
Frequency brainwave Ans: speed of the brain waves or how much
activity is occurring every second. Visually identified in a brain wave
1
VCE Psychology Unit 4 AOS 1 Questions and
Answers (100% Correct Answers) Already
Graded A+
Altered state of consciousness (ASC) Ans: a state of consciousness that
is distinctly different from normal waking consciousness in terms of quality
of experience and levels of awareness
© 2026 Assignment Expert
Normal waking consciousness Ans: a state associated with being aware
and alert of our internal and external environments, we can manage our
attention and our behaviour, and our thoughts and perceptions are
organised and clear
Guru01 - Stuvia
Sleep Ans: a naturally occurring & reversible altered state of
consciousness, characterised by a reduction in awareness and
responsiveness to external surroundings
REM sleep Ans: a stage of sleep characterized by rapid eye movements
and a high level of brain activity
NREM sleep Ans: a type of sleep characterised by a progressive decline
in physiological activity such as heart rate, blood pressure and breathing
Stage one sleep Ans: light sleep low amplitude and high medium
frequency brain wave activity
Stage two sleep Ans: light sleep, experienced the most throughout a
sleep episode, bursts of brain activity help resist being woken by
environmental stimuli such as noises.
, For Expert help and assignment handling,
2
Stage three sleep Ans: deepest stage of sleep; chracterised by low
frequency, high amplitude brain wave activity, physiological arousal at
lowest, person is most difficult to wake up.
hypnogram Ans: a line graph of a person's sleep mapped over time
Sleep episode Ans: entire sleep in one time bracket
Psychological construct Ans: a phenomenom that cannot be
© 2026 Assignment Expert
objectively observed or measured through the collection of data, but it
is widely understood to exist
Differences between NREM and REM sleep Ans: During NREM sleep,
Guru01 - Stuvia
physiological activity such as brain activity slows down, whereas in REM
sleep, physiological activity increases. As a night progresses, REM periods
increase in length, whereas NREM periods decrease
Stages of NREM sleep Ans: three
proportion NREM &REM sleep in a typical night for an adult? Ans: NREM
75-80%, REM 20-25%
Duration of sleep cycle Ans: 90 mins
Number of sleep cycles per night typical 8hr sleep adult Ans: 4-5
Electroencephalography (EEG) Ans: electrodes are attached to skull to
detects, amplifies and records the electrical activity of the brain,
Frequency brainwave Ans: speed of the brain waves or how much
activity is occurring every second. Visually identified in a brain wave
