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Psychology
C3: States of Consciousness
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Consciousness
is our
awareness
of
ourselves
and our
environments
Circadian Rhythm
is a
biological
clock
that has
regular
bodily
rhythms
, occurring on a
24
hour cycle
Circadian Rhythm
can be
affected
by
age
and
experience
, altering our
24
hour clock
Sleep
is the
periodic
and
natural
loss
of
consciousness
that is
broken
down
into
4
stages
that we
rotate
through
every
90
minutes
The 4 stages of sleep is
NREM-1
,
NREM-2
,
NREM-3
,
REM
There are
two
types of sleep,
REM
and
Non REM
(
NREM
)
Waking Beta
is an
alert
and
walking
state
Waking Alpha
is an
awake
but
relaxed
state
NREM-1
goes from
Alpha
to
beta waves
NREM-1
lasts for
5
to
10
minutes
Hypnagogic Images
are the
hallucinations
involving
moving shapes
,
colours
and
images
Hypnic Jerk
is the feeling of
falling
or
floating
during our
sleep
, causing us to
awake
Breathing
and
heart rate
is
regular
during
NREM-1
;
Brain temperature
and
blood pressure decreasing
During
NREM-1
, the
body
has
little
to
no body movement
at all
NREM-2
consists of
beta waves
and lasts for around
20 minutes
Body temperature
decreases
during
NREM-2
Sleep talking
can occur during
NREM-2
Age affects
the
amount
of
K complexes
one has,
decreasing
as we
grow older
NREM-3
produces
delta waves
NREM-3
is
50
% of our sleep time, lasting for
30
minutes
During
NREM-3
,
sleep walking
occurs
The body is
active
during
deep sleep
for
NREM-3
Any
outside stimuli
fails to
awake
someone during
NREM-3
REM (
Rapid Eye Movement
) produces
beta waves
, having
irrational
,
emotional
and
vivid dreams
All
mammals
have
REM
Paradoxical sleep
is the
paralyzation
of ones
limbs
and the
inability
to
move
Acetylcholine increases
as
serotonin decreases
during
REM
During
REM
,
snoring
will
stop
as our
eyes move
and our
genitals
get
aroused
Breathing
is
irregular
and
rapid
, the
blood flow
to our
brain increasing
during
REM
The sleep cycle repeats every
90
minutes,
NREM-3
decreases each time
while REM and
NREM-2 increases
Sleep loss can effect ones
brain
,
immune system
,
fat cells
,
joints
,
heart
,
stomach
and
muscles
The
brain
can
lose focus
and have
short-term memory
due to
sleep loss
; has an
increased risk
of
depression
The
immune system
can suppress
immune cell
production,
increasing
the risk of
infections
such as
colds
due to
sleep loss
Fat cells increase production
and has a
higher risk
of
obesity
from the
lack of sleep
Joints
have
increased inflammation
and
arthritis
with
sleep loss
The
heart
has an
increased
risk of
blood pressure
from
sleep loss
Stomach
has an
increased hunger-aroused hormone
and
decreased hunger hormone-suppressing hormone
due to
sleep loss
Muscles decrease
in
strength
and have a
slower reaction time
and
motor learning
due to
sleep loss
Insomnia
is the
recurring problems
of staying or falling
asleep
Narcolepsy
is the
uncontrollable sleep attacks
that last
less
than
five
minutes
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