[Neuroscience] Re: Reverse EEG
(by reachanadi from gmail.com)
Wed Sep 15 09:14:50 EST 2010
On Sep 14, 4:57 am, Sudheendra Rao N R <sudhe... from gmail.com> wrote:
> Your EEG basically is AMPLIFIED electrical activity and to pass electricity
> back, you would have problems of penetration, tissue resistance.
> However, on a gross scale Transcranial Magnetic Stimulation (TMS) does what
> u intend to do, but it uses magnetic field to create a perpendicular
> electric field..
> In that context, this is interesting.
> 4. Transcranial stimulation has been used to alter cortical activity and
> learning (Hallett, 2007; Floel and Cohen, 2007). In this sense, transcranial
> electrical stimulation is 'reverse EEG'. In an intriguing study, application
> of slow-wave (0.75 Hz) transcranial electrical stimulation during early
> slow-wave sleep was shown to improve declarative memory retention (Marshall
> et al., 2006). The subjects were stimulated with positive currents at
> fronto-lateral locations. The critical link from this finding to the EEG
> literature on global spatio-temporal waves is the finding by Massimini et
> al. (2004) that slow wave activity in the EEG during sleep takes the form of
> a global spatio-temporal wave. The waves during slow-wave sleep originate
> predominantly from pre-frontal regions.
> here is the full linkhttp://www.jneurosci.org/cgi/eletters/27/11/3030
> On Mon, Sep 13, 2010 at 4:40 PM, Infinite Monkey <reachan... from gmail.com>wrote:
> > Hi all,
> > I do not have any idea about neuroscience as such but have interest in
> > cognitive science in general.
> > My question is the following :
> > Is it possible to reverse the EEG?
> > We can capture the current flows with EEG from various parts of the
> > brain and then use them to control devices etc.
> > But can we impose the same synaptic flows from external devices
> > without having to probe the brain, maybe using some EM waves?
> > Does anybody have any idea whether any research has been done on this
> > and if yes, where?
> > Thanks,
> > Infinite Monkey.
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