Pat (01)
>>>> Wait: neural paths aren't waves. (02)
right observation (03)
( from relative ignorance - this is not my direct field so I don't
have the literature at hand darn)
and following up on an earlier post which said there are no brainwaves (04)
I guess it depends on 'classification' (05)
(ontology for the brain link?) (06)
brain activity
frequency
signal
wave
neural path
other motion that can be detected? (07)
define and establish the relationships between them
then we talk again (08)
1) according to commonly cited classification (I studied psychology
one year), there are brainwaves and they have also names
(alpha, beta etc)
http://www.web-us.com/brainwavesfunction.htm
They have been studied to some extent, but the subject may be more
interdisciplinary than research is prepared to stretch to (personal
view) (09)
2) Again, I am working on something else now but
here is the reasoning (010)
>get definition and measurement for 'neural path' (my springerlink is
not responding)
>>compare with definition and measurement for for brainwave as above
>>> establish correlation, if any (011)
My entire speculative and relative ignorant guess is that the wave is
a spatial representation of
some electrical signal (012)
correct me please
pdm (013)
On Dec 18, 2007 2:28 PM, Pat Hayes <phayes@xxxxxxx> wrote:
> >On Dec 18, 2007 7:57 AM, Pat Hayes <phayes@xxxxxxx> wrote:
> >
> >> . Even if one were given a complete
> >> (dead) mammalian brain, there is no conceivable
> >> way to reconstruct all the neural connections in
> >> it, since the total cross-section of a neuron's
> >> end branchings greatly exceeds that of its axon,
> >> and these neurons are tightly packed in the
> >> cortex. Any way to 'take it apart' to find all
> >> the neurons, therefore, would of necessity
> >> involve breaking the connections which hold them
> >> together. Put another way: its impossible to
> >> assemble (or disassemble) a brain; it has to be
> >> grown.
> >
> >This is precisely why I think the brain should be studied as a whole, and
> >not in its puree or minced form.
>
> Well, everyone agrees with that, of course. The
> problem is knowing how to start describing a
> whole brain. BTW, it is definitely known that
> different parts (areas) of the brain perform
> distinct functions, even though they mostly look
> similar under a microscope.
>
> > Thats the only way the neural paths (folk. 'brainwave') can be observed,
>
> Wait: neural paths aren't waves. Waves are
> rhythmic patterns of activity across the whole
> brain, like movements in a flock of birds. These
> are only a tiny fraction of the total brain
> activity, though, most of which seems to not be
> 'waves' at all, more like flashes or bursts.
>
> >
> >I hate to think like Frankenstein , but I bet you can induce some
> >level of passive activity in a coma brain by passing some tiny
> >frequencies.
>
> You can stimulate neurons in an awake brain by
> small electrical impulses along a needle. The
> person in the brain experiences some very odd
> stuff, depending on where you do this to.
>
> > (not ac/dc I guess)
> >I ll have to remember to do that experiment next time I come across a coma
>
> Well, speaking as an ex-epileptic, I'd rather you didn't.
>
> Pat :-)
>
> >
> ><grin>
> >
> >PDM
> >
> >>
> >>
> >
> >
> >
> >--
> >Paola Di Maio
> >School of IT
> >www.mfu.ac.th
> >*********************************************
> >
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> (014)
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