The world poltergeist derives from a german
word meaning 'rumbling ghost,' which is widely believed to be a
spirit or ghost that interacts with others by moving and influencing
inaminate objects. Poltergeist phenomena is a focus of study within
parapsychology, whereby parapsychologists define poltergeist activity
as a type of uncontrolled psychokenisis.
Poltergesit activity tends to occur around
a single person called an agent or focus. Focuses are often, but
not limited to, pubescent children. Almost seventy years of reseacrh
by the Rhine Research centre has led to the hypothesis among parapsychologists
that the 'poltergeist effect' is a form of psychokenisis generated
by a living human mind (that of the agent). According to researchers
at the Rhine centre the poltergeist effect is an outward manifestation
of psychological trauma. Skeptics beleiive that the phenomena are
hoaxes perpetrated by the agents. Indeed many poltergeist agents
have been caught by investigators in the act of throwing objects.
However parapsychologists investigating poltergeists think that
most occurences are real.
Another version of the poltergeist is the
wrath version. When a person dies in a powerful rage at the time
of death, the person is believed by some to come back to fulfill
that veangance. In some cases the veangance is to strong to let
go or forgive, and the metaphysical ghost becomes a poltergeist,
in which the newly formed ghost can affect solid objects.