From: Sandra Naumann (email suppressed)
Date: Mon Dec 22 2008 - 03:00:15 PST
Yes, there is a certain frequency. As far as I remember it lies between 8 and 10 pulses per second which matches the frequency of the alpha waves in the brain. But may you want to check out William Grey Walter's book "The Living Brain" (the fourth chapter is called Revelations by Flicker) first published in 1953 and John Geiger's "Chapel of Extreme Experience" which is related to the Dream Machine.
I have heard of some cases where people actually have suffered from epileptic attacks atttending flicker performances which is why quite a lot of artist give advance information about the risks and even let people sign that they are aware of it and attending on own risk.
Best,
Sandra
-------- Original-Nachricht --------
> Datum: Sun, 21 Dec 2008 12:25:12 -0800
> Von: Myron Ort <email suppressed>
> An: email suppressed
> Betreff: Re: Strobe and color
> Interesting. It is so hard for me to keep up with the various
> esoteric showings, I guess we are all in that same boat ....
>
> I wonder if I should put a seizure "warning" at the head of my
> extended hand-painted films. ... probably not since there is
> "content", in the sense that there is content in an AE painting vs.
> a blank frame. Is there a particular frequency of flicker, I
> wonder, which is seizure producing ? (Steve Polta did refer to this
> phenomenon) If one showed any film at a slow enough speed would it
> incur the danger of seizures in certain individuals? (I guess this
> has happened) If a seizure producing film is digitized and shown on a
> tv screen is it no longer seizure producing?
>
> On Dec 21, 2008, at 11:01 AM, Sandra Naumann wrote:
>
> > Hi Myron,
> >
> > Maurizio Martinucci aka TeZ was recently exploring colored
> > flickering images in his piece PV868 .
> > Kurt Hentschlager, one part of the former duo Granular Synthesis,
> > was working with artificial fog and partly colored stroboscobic
> > light in his FEED performance causing colored and even spatial
> > illusions.
> >
> > Sandra
> >
> > -------- Original-Nachricht --------
> >> Datum: Wed, 17 Dec 2008 18:12:44 -0800
> >> Von: Myron Ort <email suppressed>
> >> An: email suppressed
> >> Betreff: Re: Strobe
> >
> >> Is it only B/W flicker-type films that have been known to cause
> >> seizures? What about any other types of experimental films?
> >>
> >>
> >> On Dec 17, 2008, at 9:49 AM, Steve Polta wrote:
> >>
> >>> ARNULF RAINER can indeed trigger seizures. I've seen it happen.
> >>>
> >>> Steve Polta
> >>>
> >>>
> >>> I don't know if the flicker
> >>>> frequencies of any of the films mentioned fall outside the
> >>>> range that can induce this effect, but this can occur with
> >>>> films as well.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> __________________________________________________________________
> >>> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
> >>>
> >>
> >>
> >> __________________________________________________________________
> >> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
> >
> > --
> > Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit
> > allen: http://www.gmx.net/de/go/multimessenger
> >
> >
> > __________________________________________________________________
> > For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
> >
>
>
> __________________________________________________________________
> For info on FrameWorks, contact Pip Chodorov at <email suppressed>.
-- Sensationsangebot verlängert: GMX FreeDSL - Telefonanschluss + DSL für nur 16,37 Euro/mtl.!* http://dsl.gmx.de/?ac=OM.AD.PD003K1308T4569a __________________________________________________________________ For info on FrameWorks, contact Pip Chodorov at <email suppressed>.