Shiva Neural Stimulation Technology ("Shiva")
is an example of Circumcerebral Neural Stimulation, which, prior
to Shiva, has only been used in laboratory settings. The windows-software
based approach used with Shiva allows many possibilities not yet
researched or described in the scientific literature, and some of
them are included with this software. Although there are studies
that demonstrate that these signals, about as strong as the ones
from a (land-line) telephone handset, do not have adverse effects
on brain tissue or cells, the possibility that some session designs
might be unpleasant for some people cannot be ruled out, due to the
present state of scientific knowledge. Laboratory
research reported no negative effects
of any kind from circumcerebral magnetic stimulation.
In the unlikely event that these
occur for you, contact altered@xtra.co.nz for
tech support.
Some signals have more than one
speed. The ones labeled as 'normal' are the best-tested ones, and
more cautious users may choose to begin with those. Some signals
have not been used in circumcerebral magnetic technology prior to
Shiva, and one has had only minimal testing (the modulated 40 hertz
'chirp'), though it's based on principles which have been well-tested
with other complex magnetic signal technologies.
Headaches have been reported with
complex mangetic signal technology. These have not been headaches
in the usual sense of the word. These have been described as a feeling
of pressure rather than as pain in most cases. Shiva is too new for
data on this subject to have been gathered, but a previous version
of complex magnetic signal technology showed low rates for headaches (informed consent about headaches). Most
of these have been associated with the hippocampal signals, and have
been alleviated using common headache remedies and have occurred
with a few sessions before they stopped happening.
It's important to be very careful with any session
designs you might create for yourself. The manufacturer strongly
suggests that you not develop your own session designs, both for
safety and for effectiveness. However, there are always a few individuals
who will disregard this suggestion, and in the event that unwanted
effects occur, they are strongly advised not to take advice from
any source except Shiva's tech support.
All units are guaranteed against defects in workmanship
and may be returned for a replacement. Contact tech support prior
to returning yours to be sure a replacement is called for. All units
are tested prior to shipping.
All units are handmade prototypes.