Received: by alpheratz.cpm.aca.mmu.ac.uk id LAA08177 (8.6.9/5.3[ref pg@gmsl.co.uk] for cpm.aca.mmu.ac.uk from fmb-majordomo@mmu.ac.uk); Thu, 23 Mar 2000 11:34:32 GMT To: memetics@mmu.ac.uk Date: Thu, 23 Mar 2000 03:31:56 -0800 From: "Scott Chase" <hemidactylus@my-Deja.com> Message-ID: <JHFFBEALHLMJICAA@my-deja.com> X-Sent-Mail: off X-Mailer: MailCity Service Subject: RE: Self-Acquisition X-Sender-Ip: 209.240.200.85 Organization: My Deja Email (http://www.my-deja.com:80) Content-Type: text/plain; charset=us-ascii Content-Language: en Content-Length: 3134 Content-Transfer-Encoding: 7bit Sender: fmb-majordomo@mmu.ac.uk Precedence: bulk Reply-To: memetics@mmu.ac.uk
--On Thu, 23 Mar 2000 01:50:08 Scott Chase wrote: > >-- > >On Wed, 22 Mar 2000 15:45:40 Joe E. Dees wrote: >>From: "Chris Lofting" <ddiamond@ozemail.com.au> >>> >(snip) >>> >>> As we see in hippocampus, there is a link of waypoint mapping to territorial >>> mapping and this leads to the abstraction of mine/not mine to >>> correct/incorrect. Further abstraction takes us into the neocortex and the >>> root of syntactic processing which is sourced in that part of the brain best >>> associated with object thinking, encapsulated thinking, SELF thinking. >>> >>This granting of specific semantic specifications (mine/not mine, >>correct/incorrect), for all humans, to a particular midbrain (limbic >>system) component which is known primarily for its roles in >>memory and emotion is a speculation without scientific basis at >>the present state of cognitive science. Current speculation upon >>the location of Antonio Damasio's "sense of self" includes, but is >>not limited to, the midbrain (primarily the reticular activating >>system). >>> >>> The emotion linked to the syntax concept has been located by Demasio et al., >>> in the left hemisphere of the brain. Thus there is a fundamental emotion >>> linked to the concept of "I". >>> >>Emotions are generated in the limbic system, which is midbrain. I >>own two of Damasio's books (Descartes' Error and The Feeling of >>What Happens); please refer me to pagination for this contention. >> >Ummm, provide me with support for your contention that the limbic system is midbrain (mesencephalon). I'll be a monkey's uncle, but I thought the components of the limbic system were considered part of the forebrain (prosencephalon). Am I mistaken? > >I do recall the superior and inferior colliculi of the corpora quadrigemina being part of the midbrain and involved in visual and auditory functions respectively though. > > I have no decent neuroanatomy texts handy, but since some of the focus above is on the hippocampus, I found a table depicting the development of the brain from neural tube to its basic components. Shepherd (1994, p. 195) shows this particular developmental path which I'll adapt for this purpose:
anterior neural tube -- prosencephalon -- telencephalon -- rhinencephalon -- archipallium (hippocampus)
I'll need to check a good neuroanatomy text for backup if I can make it to the library. My old neuropsych text might do though. From Kolb and Whishaw (1990, p. 11) there's a table showing "the divisions of the nervous system" and the limbic system is shown as part of the forebrain (prosencephalon). In this table the mesencephalon contains tectum, tegmentum and the cerebral aqueduct.
Both these books could be wrong. I'd be more comfortable if I had a neuroanatomy text handy :-(
refs:
Kolb B and Whishaw IQ. 1990. Fundamentals of Human Neuropsychology. WH Freeman and Company. New York
Shepherd GM. 1994. Neurobiology. Oxford University Press. New York
Scott
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