Title: DREAMS
1DREAMS
- Their
- Meaning
- And Role
- In Our Life
by Dimitra Bella-Velidi Teacher Zafi Mandali
2What Is A Dream?
A mental activity (thoughts, images, emotions)
occurring during sleep.
During a typical lifespan, a human spends a total
of about six years dreaming
about 2 hours each night
The contents and purpose of dreams are not fully
understood and they have been a topic of
discussion for many years. There is no
universally agreed definition of dreaming. It is
unknown where in the brain dreams originate, if
there is a single origin for dreams or what the
purpose of dreaming is for the body or mind.
3Function Of Dreams
- There are many hypotheses about the function of
dreams. - Freud suggested that bad dreams let the brain
learn to gain control over emotions resulting
from distressing experiences. - Dreams also let the mind express things that
would normally be suppressed in the real world
and keeping itself in harmony. - Dreams may also allow a person to see some future
events or prepare for them, for example a work
presentation, a job interview, or a first date.
4Function Of Dreams
- Dreams may also create new ideas which are not
real. Some of these may be rejected by the mind
as useless, while others may be seen as valuable
and remain. - Dreams may also change the mood. Hartmann says
dreams may function like psychotherapy, by
"making connections in a safe place" and allowing
the dreamer to connect thoughts that may be
irrelevant while the person is awake. - Recent research suggest that dreaming
metaphorically completes patterns of emotional
expectation and lowers stress levels.
5REM and NREM
REM-sleep Most dreams occur in connection with
rapid eye movements, and are said to happen
during REM-sleep, during which there is a lot
brain activity to be most like that of a
sleepless person. The REM period takes up 20-25
of sleep time. Babies and little children are
believed to dream during about 50 of their sleep
time.
NREM-sleep Dreams occurring during non-REM
periods are said to happen during NREM-sleep.
Dreams during non-REM sleep are usually more
colorless in comparison.
6The Stages Of Sleep
- Sleep researchers divide up sleep time into
stages, usually by seeing the brain waves into
an electroencephalograph (EEG). The EEG records
electrical activity in the brain by connecting
some electrodes to the scalp. - Typically, a person will have four or five REM
periods a night, each one lasting from 5 to 45
minutes. There is some evidence, however, that
REM-sleep happens before dreaming and that these
two are completely different from each other.
7The REM-Dream State
An EEG showing brainwaves during REM sleep
When a person is in deep sleep there is no
dreaming and the waves (called delta waves) come
at a high vibration about 3 per second.
- The REM-dream state is a neurologically and
physiologically active state. In this state the
waves come at a rate of about 60-70 per second
and the brain generates about five times as much
electricity as when awake. Blood pressure, heart
rate, breathing rate, etc. can change
dramatically during REM-sleep. Since there is
generally no external physical cause of these
states, the stimuli must be internal, i.e., in
the brain, or external and non-physical.
8The Brain Activity During A Dream
- Brain stem mechanisms protect us during sleep
from activities that could have as a result
self-injury or injury to others. That is, most of
us are paralyzed during sleep. However, some
people suffer from sleep disorders where those
activities are not prevented. People who suffer
from this disorder flail, sleepwalk, etc., and
can be a danger to themselves or others. Such
people often leave their beds during sleep. - Another curious quality of brain activity during
dreaming is that almost all dreams are forgotten.
We call this dream amnesia. This is not due to
anything paranormal or supernatural, but to weak
encoding. - Perhaps the most curious quality of dreams is
that we most of the time are not aware that we
are dreaming while we are dreaming. This may
account for time distortion, lack of reflection
on one's plight, and the amnesia that often
follows waking.
9Parapsychology vs. Science
- Nowadays, hardly anyone believes that dreams are
messages from the gods. But some
parapsychologists, believe that dreams offer an
opening to another universe. - Others have studied the subject of whether the
mind is open to telepathic input during sleep and
have failed to find evidence of psychic ability
while dreaming. They seem to think that brain
waves represent states of consciousness and that
sleep is an altered state of consciousness.
However, sleep is not a state of consciousness,
but unconsciousness.
10Parapsychology vs. Science
- A lucid dream, also known as a conscious dream,
is a dream in which the person is aware that
he/she is dreaming while the dream is in
progress. During lucid dreams, it is possible to
gain control of the dream characters and
environment, as well as to other impossible
feats. - Lucid dreaming has been researched
scientifically, and its existence is well
established. Allan Hobson, with his
neurophysiological approach, has helped to
understand the lucid dream into a less
complicated way.
11Parapsychology vs. Science
- The prophetic or clairvoyant dream is perhaps the
strongest reason for believing that dreaming is a
gateway to another world. Some dreams seem
bizarre. They seem to foretell events. -
- If a significant number of dreams of just a
single person corresponded to future events, this
would be a great benefit to humankind and we
should try to find out how does it work. However,
no such person has been found yet. - However, most parapsychologists are not
interested in the physiology of dreaming. They
focus instead on the content of dreams, which
they believe reveals a passage to the paranormal
or the supernatural.
12Nightmare
- A nightmare is a dream which causes fear or
horror, or the feelings of pain, falling,
drowning or dying. Such dreams can be related to
physical causes such as a high fever, or
psychological ones such as psychological trauma
or stress in that persons life. If a person has
experienced a psychologically traumatic situation
in life, for example, a person who may have been
captured and tortured, the experience may come
back to haunt them in their nightmares. Sleepers
may stay awake and be unable to get back to sleep
for some time.
13Dream Interpretation
- Dream interpretation is the process of giving
a meaning to dreams. In many of the ancient
societies, including Egypt and Greece, dreaming
was considered a supernatural communication,
whose message could be made clear by those with
certain powers. In modern times, various schools
of psychology have offered theories about the
meaning of dreams.
success, values
If you want to learn more about dream
interpretation and what each thing symbolizes,
simply go to www.dreammoods.com
obedience
love, romance
14Conclusion
- Most dream themes, such as being chased or
falling are said to have a connection with our
hunter-gatherer days. We have these dreams
because our ancestors were chased by
sharp-toothed tigers and slept in trees. The
evidence for such beliefs is minimum. If the
dream-state is a gateway to anything, it is
probably a gateway to personal fears and desires,
rather than to ancient ones of other people. We
assume dreaming has a purpose, but that purpose
is more likely to be rooted in this life than in
some other one. - It is most likely that dreams are a result of
electrical energy stimulating memories located in
various regions of the brain. Why does the brain
keeps memories, remains a mystery, though there
are several explanations. Explanations in terms
of the paranormal and supernatural are not as
likely to have a connection with those that limit
themselves to biological and emotional mechanisms
linked to brain activity.