The dreams are associated to image model development. Such models are built,
based on the available data in the brain and not by direct interaction with
the external reality. We call the source of data for the dreams as Quasi-
External-Reality. QER could take information from any available model of the
brain to build and develop the dream-model. QER is invariant during a dream.
A dream is a model, which is developed, based on an invariant QER.
We shall describe several classes of dreams.
1. QER is mainly based on the external reality, but contains also some
artificial elements or relations. A dream based on artificial components,
tries, by development, to modify the external reality to meet the dream.
Example: we dream a situation. Such a situation doesn't meet the external
reality, because some artificial elements or relations are added. The dream
can activate some models to change the external reality, to meet the
specifications of the dream.
2. Technological dreams (wake-up dreams)
The brain generates such dreams. They solve by software, some of the design
deficiencies of the brain. The most important technological dreams are wake-up
dreams.
There are normal wake-up dreams, emergency wake-up dreams and nightmare
dreams. They are generated to wake-up a brain, because, due to a lack of a
suitable hardware, the brain must generate the wake-up function based on
software.
The main design feature of the brain, which is used by these technological
dreams, is to activate the PSM. As the PSM is activated, the brain wake-up,
i.e. a normal ZM, is activated. Usually, the PSM is activated by some unusual
changes of the external reality (powerful noises, mechanical shocks...). The
wake-up dreams try to activate the PSM by software. To do this, a wake-up
dream sends to PSM the information that there is a situation and no suitable
model to understand it. As we already know, when there is no model to
understand a specific external reality, the PSM is activated. For a wake-up
model, external reality is replaced by Quasi-External-Reality (QER).
MDT does not specify which component of the brain starts the dream (this is a
technological feature). The components could be associated with the internal
body or to the sense organs.
The content of the dream is not important. Any dream that activates the PSM is
good. So an important problem associated with the health of the being or an
unimportant problem could build the same dream. Only the character of the
dream is important.
In case of a wake-up dream the character has to be taken into account:
- iminent danger to the person means that there is a big problem associated to
health or the environment where the person is sleeping. Also, it could be a
problem associated with something which is included, as a model, into the PSM
(close relatives, some objects or situations, some problems etc).
- there is a danger, but it is not associated to the person or close
relatives.
- It is a neutral dream, no danger. This is a normal wake-up dream. For
instance: the dream is associated with a flower. The person wants to pick that
flower, but fails. This situation activates the PSM, which activates the wake-
up procedure.
One problem could occur: how does the brain know that a certain dream will
activate the PSM? A possible answer is that a dream will develop by
simulation, on and on, up to the moment when the PSM is activated. When the
wake-up occurs, the first active-ZM will be that one which activated the PSM
and so, it will be remembered.
There is an important feature of QER to be presented here. QER is built on the
spot, because it is associated to a problem, which has to be solved very fast.
Thus, QER cannot be too complex. It is easy to simulate the development on a
simple model, which cannot be solved by the dream model.
Example: The QER is associated with a room. If, during a dream, the person
wants go outside the room, this is impossible, because the QER doesn't contain
the exterior of the room. Thus, it is impossible to go outside and so the PSM
is activated.
3. The nightmare dreams are associated with a general instability of the
structure of models. A nightmare cannot occur in a brain which is in a normal
status. A nightmare dream might try to activate the PSM, but the PSM does not
activate. Even more, if the PSM activates (the nightmare becomes the active-
ZM) the nightmare continues. This problem is too closely associated to the
technological implementation of the brain and so it cannot be treated by the
theory only.