U.S. Patent No. 6,506,148 (inventor Hendricus Loos), Jan, 14, 2003
NERVOUS SYSTEM MANIPULATION BY ELECTROMAGNETIC FIELDS FROM MONITORS
illustrates the technical feasibility of deliberately manipulating humans by pulsed frequency emissions from CRT or LCD monitors (i.e. televisions, computer screens, any device with a display).
"ABSTRACT
"Physiological effects have been observed in a human subject
in response to stimulation of the skin with weak electro
magnetic fields that are pulsed with certain frequencies near
1/2 Hz or 2.4 Hz, such as to excite a sensory resonance. Many
computer monitors and TV tubes, when displaying pulsed
images, emit pulsed electromagnetic fields of sufficient
amplitudes to cause such excitation. It is therefore possible
to manipulate the nervous system of a subject by pulsing
images displayed on a nearby computer monitor or TV set.
For the latter, the image pulsing may be imbedded in the
program material, or it may be overlaid by modulating a
video stream, either as an RF signal or as a video signal. The
image displayed on a computer monitor may be pulsed
effectively by a simple computer program. For certain
monitors, pulsed electromagnetic fields capable of exciting
sensory resonances in nearby subjects may be generated
even as the displayed images are pulsed with subliminal
intensity."
Got it? Even people in the vicinity of the monitor can be affected by low-intensity (i.e unnoticeable) pulsing.
What kinds of effects?
At 1/2 Hz, "the observed effects include ptosis of the eyelids, relaxation,
drowziness, the feeling of pressure at a centered spot on the
lower edge of the brow, seeing moving patterns of dark
purple and greenish yellow with the eyes closed, a tonic
smile, a tense feeling in the stomach, sudden loose stool, and
sexual excitement, depending on the precise frequency used…"
Not just in this patent. The prior art describes the same effects elicited by pulsed electric fields, pulsed magnetic fields, weak heat pulses applied to the skin, and subliminal acoustic pulses.
The effects produced at the 2.4 Hz frequency include slowing of certain cortical processes.
How do these pulses get to the brain to cause such effects? Sensory nerves fire spontaneously. Weak pulses applied to the skin cause slight frequency modulation patterns in these nerves' firings. Even very weak electric fields cause slight polarization changes in the skin. Applying the stimulation over broad areas of the skin – such as by an electromagnetic field – simultaneously stimulates enough nerves that the individual nerve spikes reaching the brain sum together, causing coherent stimulation of the central nervous system at the induced frequency.
"Weak magnetic fields that are pulsed with a sensory
resonance frequency can induce the same physiological
effects as pulsed electric fields. Unlike the latter however,
the __magnetic fields penetrate biological tissue with nearly
undiminished strength__. Eddy currents in the tissue drive
electric charges to the skin, where the charge distributions
are subject to thermal Smearing in much the same way as in
electric field stimulation, so that the same physiological
effects develop."
The patent describes introduction of these pulse patterns by a computer program under the subject's control, or inserted into a video stream delivered from a DVD or over the internet or by a television signal.
This patent is just one of a long series of related patents going back to 1971 in the field of manipulating the human nervous system.