|
My question exactly. From the way your last statement read Paola, I can only think that you refer to a brain in a living state. In that case, study is limited to functional evaluation (with the occasional exception being those areas removed for pathological examination).
Study of tissue is typically not just a study of morphology. Often, a scientist is more interested in how the tissue behaves in tissue culture media. This may include evaluating hormone or neurotransmitter secretion or uptake, evaluation of electrical potential changes across cell membranes, or evaluating tissue growth or regeneration. under various physiologic constraints.
Cecil O. Lynch, MD, MS
-------- Original Message --------
Subject: Re: [ontolog-forum] brainwaves (WAS: to concept or not to
concept, is this a question?)
From: "Patrick Cassidy" <pat@xxxxxxxxx>
Date: Mon, December 17, 2007 9:06 pm
To: "'[ontolog-forum] '" <ontolog-forum@xxxxxxxxxxxxxxxx>
Paola,
When you talk about studying the brain as a whole are you talking about a
live, functioning brain in situ, or a whole dead brain?
PatC
Patrick Cassidy
MICRA, Inc.
908-561-3416
cell: 908-565-4053
cassidy@micra.com
> -----Original Message-----
> From: ontolog-forum-bounces@ontolog.cim3.net [mailto:ontolog-forum-
> bounces@ontolog.cim3.net] On Behalf Of paola.dimaio@gmail.com
> Sent: Monday, December 17, 2007 11:55 PM
> To: clynch@ontoreason.com; [ontolog-forum]
> Subject: Re: [ontolog-forum] brainwaves (WAS: to concept or not to
> concept, is this a question?)
>
> Thanks Clynch
>
> I understand what you say perfectly well, and you are right, I am not
> a neuroscientist
> I do respect your profession, and I am sure there is value in
> dissection but in my non expert view dissection can only study some
> physical aspects of the brain. (ie enable to better look at the
> individual bits) The 'logical' functions of the brain (the mental
> abilities) I dont think you can study by looking at the pieces
> Please correct me
>
> PDM
>
>
> On Dec 18, 2007 11:44 AM, clynch <clynch@ontoreason.com> wrote:
> > PDM,
> >
> > If you had ever seen a human brain in situ or on a dissecting plate
> and
> > looked at a section of the amygdala under an electron microscope, I
> doubt
> > you would have your opinion that the brain "should be studied as a
> whole".
> > This is like studying an orange seed from the outside of an unpeeled
> orange
> > or deducing behavior of an electron by looking at a piece of wood,
> only more
> > limiting.
> >
> > >From the discussions I have seen posted, I cannot deduce your area
> of
> > expertise, but one of mine is medicine and neuroendocrinology, and I
> assure
> > you are incorrect in this instance.
> >
> > Cecil Lynch
> >
> > -----Original Message-----
> > From: ontolog-forum-bounces@ontolog.cim3.net
> > [mailto:ontolog-forum-bounces@ontolog.cim3.net] On Behalf Of
> > paola.dimaio@gmail.com
> > Sent: Monday, December 17, 2007 8:27 PM
> > To: [ontolog-forum]
> > Subject: Re: [ontolog-forum] brainwaves (WAS: to concept or not to
> > concept,is this a question?)
> >
> >
> > On Dec 18, 2007 7:57 AM, Pat Hayes <phayes@ihmc.us> 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.
> > Thats the only way the neural paths (folk. 'brainwave') can be
> observed,
> >
> > 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. (not ac/dc I guess)
> > I ll have to remember to do that experiment next time I come across a
> coma
> >
> > <grin>
> >
> > PDM
> >
> > >
> > >
> >
> >
> >
> > --
> > Paola Di Maio
> > School of IT
> > www.mfu.ac.th
> > *********************************************
> >
> > _________________________________________________________________
> > Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
> > Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-
> forum/
> > Unsubscribe: mailto:ontolog-forum-leave@ontolog.cim3.net
> > Shared Files: http://ontolog.cim3.net/file/
> > Community Wiki: http://ontolog.cim3.net/wiki/
> > To Post: mailto:ontolog-forum@ontolog.cim3.net
> >
> >
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.503 / Virus Database: 269.17.4/1187 - Release Date:
> 12/16/2007
> > 11:36 AM
> >
> >
> > No virus found in this outgoing message.
> > Checked by AVG Free Edition.
> > Version: 7.5.503 / Virus Database: 269.17.4/1187 - Release Date:
> 12/16/2007
> > 11:36 AM
> >
> >
> >
> >
> > _________________________________________________________________
> > Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
> > Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-
> forum/
> > Unsubscribe: mailto:ontolog-forum-leave@ontolog.cim3.net
> > Shared Files: http://ontolog.cim3.net/file/
> > Community Wiki: http://ontolog.cim3.net/wiki/
> > To Post: mailto:ontolog-forum@ontolog.cim3.net
> >
> >
>
>
>
> --
> Paola Di Maio
> School of IT
> www.mfu.ac.th
> *********************************************
>
> _________________________________________________________________
> Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
> Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-
> forum/
> Unsubscribe: mailto:ontolog-forum-leave@ontolog.cim3.net
> Shared Files: http://ontolog.cim3.net/file/
> Community Wiki: http://ontolog.cim3.net/wiki/
> To Post: mailto:ontolog-forum@ontolog.cim3.net
>
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/
Unsubscribe: mailto:ontolog-forum-leave@ontolog.cim3.net
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/
To Post: mailto:ontolog-forum@ontolog.cim3.net
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/ontolog-forum/
Subscribe/Config: http://ontolog.cim3.net/mailman/listinfo/ontolog-forum/
Unsubscribe: mailto:ontolog-forum-leave@xxxxxxxxxxxxxxxx
Shared Files: http://ontolog.cim3.net/file/
Community Wiki: http://ontolog.cim3.net/wiki/
To Post: mailto:ontolog-forum@xxxxxxxxxxxxxxxx (01)
|