IUBio

Visual space anomaly

Tore Lund tl001 at online.no
Sun Jul 18 06:51:56 EST 1999


In article <3790408A.2ED6 at online.no>, Tore Lund <tl001 at online.no> writes
>In the book "Complexity" by Roger Lewin (1993) [snip]
>
>   ...Chris felt he was living in the middle of a cube, the sides of
>   which were cinema screens with pictures projected on them.
>              (Beginning of chapter 8, page 151 in Phoenix ed.)

Nick Medford wrote:
>
> I haven't read the book, but the quote above sounds like he could be
> describing the depersonalisation/derealisation syndrome. [snip]
>
> These phenomena are currently the subject of research at the Institute
> of Psychiatry in London. You can get more info and references at our
> website:  http://www.iop.kcl.ac.uk/home/dpu/index.htm

Thanks for the pointer, Nick.  There are quite a few references to
visual disturbances at this site.  Let's look at some of them:

Anonymous:
        
    "Get telescopic vision ... The people I was talking to began to turn 
    into paper cutouts."

Jennifer:

    "My vision even feels like a 2-dimensional movie screen all of the 
    time."

Kerry:

    "Suddenly, that surreal, dream-like quality returned, complete with
    altered depth perception..." 

The mini-FAQ:

    "I really don't have any 3-D vision it seems. Everything appears
    flat." 

You and C_Thomas seem to doubt that Chris was actually seeing the world
as a cube with the world projected on its sides.  Taken together with
the quotes above, however, it seems to me that these people actually
have *visual* disturbances.

Presumably, what happens is that patients of this sort come to a
specialist who is not interested in vision - and the vision specialists
never see these patients.  Hence these disturbances are never properly
studied and described.

I repeat that I think these phenomena could tell us something about our
stereoscopic vision - because the distortions that can arise in a system
can tell us a lot about the nature of that system and rule out models
that don't allow for such distortions. 

Just a thought.
-- 
Tore Lund <tl001 at online.no>




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