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RE: EEG

Jack,

Yes EEG does detect brain signals. It is a good tool in detecting normal vs. abnormal brain activities. Using EEG is similar to watching a large building at night. We can see that the light is on or off (or even a television is on) in a particular window, but we can not be sure if there is anyone home :).  There are better methods in  looking at the brains activity that offer a better fidelity, but none of them can offer a clear representation of a thought. Natural language, written/spoken, is not the only thing we can express our thought with, but is most effective when we need to express ideas beyond simple things such as 'stop', 'go', 'left', 'right' and so on.   Curious enough that even these simple terms are deeply rooted in our 'SUO' that we have evolved trough life.

cheers as well

*********1000 0111 -0111***********
Edward Dawidowicz
US Army, RDECOM, CERDEC
Myer Center
Fort Monmouth, NJ 07703
Voice (732) 427-4122
edward.dawidowicz@us.army.mil



-----Original Message-----
From: Jack Ring [mailto:jring@amug.org]
Sent: Sunday, December 26, 2004 12:59 PM
To: standard-upper-ontology@ieee.org
Subject: EEG


I changed the subject so that those who see this topic as extraneous can
filter out these messages.

If you are envisioning EEG as detecting brain signals only then I can
appreciate your point.  However, it may be that skin conditions are being
detected as in the polygraph thus measuring 'emotive' force rather than just
brain activity.

The overall point is that the written/spoken form of language is not the
only phenomenon that the SUO might consider categorizing.

cheers,


----- Original Message -----
From: "Randall R Schulz" <rschulz@sonic.net>
To: <standard-upper-ontology@ieee.org>
Sent: Sunday, December 26, 2004 8:06 AM
Subject: Re: Fw: Intro to natural language processing


> Jack,
>
> On Saturday 25 December 2004 21:40, Jack Ring wrote:
> > Rich may be more right than wrong.
> >
> > Given that researchers at UCLA in 1980 were able to discern the
> > differences in EEG (brain waves) when a subject thought STOP, START,
> > LEFT, RIGHT and a few more and given that technology has advanced
> > during the intervening sun spot cycle (22 years) then I suspect EEG's
> > can be used today to note when a subject reads words and phrases that
> > are more pertinent to him/her than are others, thus begin to organize
> > a personal ontology.  Any takers?
>
> There are some that claim that EEG pattern analysis make it possible to
> distinguish when a person is recognizing a visual image or display that
> they have seen before and when they're seeing something for the first
> time. One person has developed this concept into technology that he
> claims can be used to good effect in criminal investigation. Naturally,
> it has yet to be accepted as evidence in criminal investigations and in
> courts of law. This technique is referred to variously as
> "brainprinting" or "brain fingerprinting."
>
> Here's an article from the BBC:
> <http://news.bbc.co.uk/1/hi/sci/tech/3495433.stm>.
>
> Personally, I've highly skeptical that the very crude signals that reach
> the surface of the scalp can disclose such refined information about
> cognitive states such as visual recognition.
>
>
> Randall Schulz
>