Showing posts with label brain. Show all posts
Showing posts with label brain. Show all posts

31 August, 2022

The Charles Bonnet Syndrome


This paper is taken from Special Issue 70 of SHAPE Journal: Truth and Illusion


The Charles Bonnet Syndrome

Discoveries of the Vision/Brain System caused by significant Loss of Vision



I am a scientist and an octogenarian. I currently suffer from an affliction known as Charles Bonnet Syndrome, caused by macular degeneration.

“Charles Bonnet syndrome (CBS) is a disease in which visual hallucinations occur as a result of vision loss. CBS is not thought to be related to psychosis or dementia and people with CBS are aware that their hallucinations are not real.” Rarediseases.info

As an extensively-experienced researcher in both science and philosophy (and their inter-relationships, and cross- causalities) - as well as being a prolific investigative writer of serious academic papers in both of these areas - I felt I was in a unique position to shed some light on this disease, and the insights it offers into how we understand the world visually.

I have a particularly well-endowed background to both accurately describe the changing symptoms involved, and (it seems to me), I possess a unique and necessary ability to draw conclusions, wholly absent from either the usual sufferers or medical practitioners - to play a role in extracting more informatively, exactly what is going on in this less than perfect, and undoubtedly failing system of diagnosis and treatment.

Indeed, it reminds me of the conclusions drawn, many years ago, by V. S. Ramachandran - whose work I have followed closely - from the clinical evidence of both Blind Seeing and Visual Neglect, concerning the Brain Functions involved, and dependable conclusions on how hallucination is actually a fundamental part of vision.



V S Ramachandran



My credentials are actually somewhat understated in the above brief description of my professional career. The last 20 years of my life have been dedicated to understanding the philosophical limitations of all Pluralist Science - a pervasive logic which sees laws as separable, but is blind to the dynamics of Qualitative Change, due to its primary methods of analysis - holding things still and making extractions. Plurality regularly generates untranscendable contraditions and impasses in our understanding, but science is fundamentally pragmatic and finds workarounds, but without ever resolving the underlying problem of its failure to deal with real-world change.

This is certainly relevant to understanding my condition, as the Charles Bonnet Syndrome is about the dynamic interface between signals from cells in the retina of the Eye, to regions of the Brain with the capabilities to construct adaptable, and developable visual models (“as cerebrally-viewable images”), which is what we actually “see” and consider, and which is both constantly-updateable and stable as a kind of “movie” in our minds, and could be called upon when required in both the immediate present, and the distant future as visual memory.

And this is well beyond what any Pluralist Science can possibly cope with! But, what could be the requirements of an alternative Holist Science, one that could comprehend this mental movie? For, it certainly WILL NOT BE as a sequence of stills (as in Film) OR even as a sequence of mini-movies (as in Analogue Video)! NOTE: I studied the dynamic qualities of both of these electronic media as part of my extensive research into Dance Education and Motion Studies, with Bedford Interactive in the 1990s.

What will it have to be then, to be useable, as we know it is in the brain, and specifically, how will it perform as evidenced by the actions of The Charles Bonnet Syndrome?

And the more incidents I experience due to the condition, the more complicated and various are the functions that are demonstrated. So, rather than using the selected examples from a clearly diverse range of accounts, some of them are either remembered or can be somewhat embroidered - to avoid the misleading consequences of such misleading evidence - I will instead commence my own contributions with a range of my own experiences, as a professional scientist and multi-discipline researcher, only recounting what I have personally experienced, and also judging what I consider valid enough to be included, if and only if, an explanation is forthcoming!

Let me start by describing the various types of hallucination I have experienced myself.


1, The Mini Movie

This invariably occurred upon waking and opening my eyes. But, it wasn’t a misinterpretation of “things- seen”, for it was there wherever I looked, and was always containing the very same subject matter. But, uniquely, it was always in full-detailed colour and excellent resolution - a perfect illusion, always of the same restricted scene, but with minor differences. It was always of a Victorian slate roof, containing one or two brick-built chimney stacks, surmounted by ceramic tops, all with the same kind of zig-zag heads. And, invariably, there would be a branch of a tree, with large glossy leaves being blown about in the wind. But that was it! In a way it was beautiful, but like a repeating movie scrap! Surprisingly it was always framed, as if seen through a window. and wherever Iooked it was there! But it always soon faded and was gone.

2, The Misinterpreted Tile

This, latterly as my sight has become very poor, is clearly a rather poor version of something actually seen, but in these cases it fills-in where my macular is detecting nothing. Very recent versions occur when a glance to a new place immediately sees a hole (that is - nothing there at all), and then rather quickly fills it with the circumstances close to the tile from actually seen views near to that hole! But my looking elsewhere and using the part of my right eye macular, still partially working, you can confirm that the patch is wrong.

With further deterioration, it has now become a major problem, as it can deliver buildings or trees to the view, when it should be the sky!

3. The False General Tiling

In relatively poor lighting conditions, a misinterpreted patch from an extended same view, will then fill-in-and-maintain, wherever I look in that extended view with a regular tiling of the same “tile”, this giving it a pattern which isn’t actually there.

4, The Simplified Tiling

If I look intently at a patterned surface or curtain, it simplifies successively (if I continue to stare) into a series of different, but repeated sets, wherever I look. And, surprisingly, the images, then consist mostly of black lines upon a white background, but they are so beautiful. It’s a real shame I can’t “capture them”!


Now, as with Ramachandran’s conclusions upon brain-activity areas, with normal seeing, the revelations of the Charles Bonnet Syndrome sufferers, as seeing functions were damaged, also throws light upon how the brain plays various creative roles in normal sight too.

To consider these phenomena upon sound bases, though, we have to be clear upon the differing functions of both the relatively tiny macular areas of the Retina within the eye, and the much larger non-macular area, which occupies the whole of the rest of the Retina. It has become clear that we actually see literally ALL detail via the Macular part of the Retina - these are the only areas naturally delivering everything we see in any detail: whereas the rest of the retina is only well equipped for detecting the movements seen by our eyes.





Indeed, detail updates for any achieved brain-image of something seen, can only take place via the macular! The macular must be moved about to build up the picture of a scene in the brain.

[Whereas, as the focus of seeing is moved elsewhere, a simplified-and-unchanging version is always left behind in all past positions, in the now non-macular areas of the Brain-image. Clearly that part of the brain-image must all be derived from prior macular attention to such areas. The non-macular brain-image is therefore initially composed of “macular-sized patches” delivering the whole of the non-macular brain-image]

So, immediately, anything no longer being picked up by the macular will NOT now show moment-by-moment changes there. Indeed, it will show what was there the last time we looked at that area, via the macular, BUT, as the non-macular does deliver movement, it will have, in some way, to update that non-macular view!

But in addition, evidence from Charles Bonnet sufferers, reveals an extra fill-in function, by copying in a now- absent-view from immediately adjacent areas.

While the rest of the non-macular view is always rotated according to a previously-learned “algorithm”, while still updating movements anywhere upon that area, as our view is moved on.

Now, some of the built-in mechanisms for updating the brain-image of a looked-at-view, have only been revealed by sufferers of the this Syndrome, particularly when the incoming image delivered by the eye is deemed inadequate, for the initial solution is to fill-each-gap with the same content, indeed as that of a close nearby spot (either a reliable one, or a compromise inaccurate one).

In the latter case, it is revealed to be from the immediately priorly-vistited “patch” - so that in an erroneous viewed area, the moving glance of the viewer will merely leave a trail of identical patches determined by the eye’s line of scanning. So, if I as a sufferer, are not sufficiently careful, the brain can fill whole areas of sky with a fiction of recently observed trees!




EDITOR’S NOTE:

Charles Bonnet Syndrome is a very specific form of pareidolia - or visual apophenia. This means that it is evidence of a general tendancy of the brain to invent things in order to make sense of random or meaningless information. For Charles Bonnet sufferers, this is experienced as profound hallucination. In people without sight loss these mechanims are still present, but largely hidden, as the stream of visual information given to us by our eyes is complete enough to correct any mistakes or strange inventions made by the brain. Seeing faces in the dark is an example of pareidolia working under normal sensory conditions. People undergoing prolonged sensory deprivation can also experience hallucinations, similar to Charles Bonnet sufferers, as we see with a phenomenon called Prisoner’s Cinema, in which inmates kept in solitary confinement begin to see strange light shows on the walls of their cell.

09 December, 2021

Developments in the Human Brain




Elsewhere, recently, I have found it necessary to consider the Effect of the Emergence of Language upon Human Development and Understanding. And, in those studies, it clearly is significant just how the Patterns of Thinking seemed to change profoundly whenever a particular Form was also given a Name, and then discussed, along with other things, and in the same way as everything else. And, this was unavoidable, of course, because within Language, a Name must be totally-fixed, to thereby allow Language to both effectively and unambiguously deliver any ideas involved!

For, whereas, a Form is never once-and-for-all uniquely determined - they most certainly-and-importantly DO change, into various other and significantly different Forms as Development proceeds - Names, on the contrary, cannot do this, for a mutually understood definition must hold, in order for it to play a meaningful role within communication.

This is both mostly unacknowledged epistemologically, and highly important, as Language is our only means of Explaining Things. Such a limitation can often be wholly incorrect when applied to dynamic Forms and Systems in particular, as it is often not immediately evident, as profound Change doesn't happen most of the time, in many areas. They are then regularly used as just another normally-unchanging (constant) elements of Language, Words: and this can cause major errors in Explanations, when those Forms suddenly change into other quite different Forms, in Emergent Development. 

But today, I came across another See The Pattern video on Toutube, by the creator and presenter of that series, Gareth Samuals, in which he considers a study from a US University, in which the actual Shrinking of the Human Brain, generally, has been clearly established! 




Now, I gave been engaged for some time upon the Emergence and putting the Effect of the restrictions of Language, above those nrcessary for Human Thinking, which has seriously affected it, in both some great advantage, as well as also, other clearly disbling ways.

For, the direction that The Sciences have taken since the Greek Intellectual Revolution of the 5th century BC, there has been been an effort to take the Forms, along with all other elements as being totally constant, by putting the needs of the Consistent Language (in Explanation) well above the need to the development of the Forms, thus vastly distorting all supposedly Scientific Explanations, by the needs of Language over those required for Forms.

Now, in addition to the above point crucial other changes are involved. For, something about the processes involved in Thinking about Things generally, must surely have significantly changed the structures and processes involved in a major qualitative changes in the forms of wholly new features that were recently necessary that were NEVER necessary previously, and some replaced those left over from a majorly different System, no longer relevant!

It would seem that whatever changes happened (and remember they actually were NOT universally implemented) still involved a shrinking of our Brain size.






What could possibly have caused it? And did it mean a reduction in the processes necessary,  caused by   simplfied Thinking techniques!? And, if so what exactly were these changes?

We have long been aware of physical changes due to excessive exercise: but this discovery is undoubtedly significant - for it seems to link a Loss-in-Structures, coupled with a significant Gain-in -Performance!

For, if this is a rare if General Rule, it infers a very different - nay revolutionary - relation between Structure and Performance, and a significant re-writing of Development and Evolutionary Changes!

But, it shouldn't surprise us, if we are already committed to the Revelations delivered by Dialectical Materialism! For, though, most of the time, things do remain unchanged, we are beginning to address the Clear Fundamental Interludes of Significant Qualitative Changes, AND the significant Role of Contention in the creation of the Wholly New! So, it cannot be avoided that the Material World changes too - And NOT just incrementally - they also happen in the thinking abilities and even physical capabilities of organisms, which can only mean that these developments must also reflect the capability of physical Changes in those organisms too!

Thought-and-Language simply must have some physical manifestations - for, indeed revolutionary transformations in Thought cannot merely be a mere new arrangrmrnt of a totally unchanging physical entity!

For, we must remember, the relatively short lifetimes of individual people, and their only way of passing physical capabilities on being via Sexual Reproduction between different individuals, in a definitely clearly dialectical development of the production of a Single Egg (synthesis) - formed from both contributing (and contending) parents, but thereafter wholly contained within and automatically sustained by the Mother! Until finally, in a cataclysmic change termed Birth, suddenly becomes a separate and unique individual - having to breathe and feed for itself! If that isn't a Revolutionary Physical Change, I don't know what is!






And, these constant renewals, many thousands per day, alongside the inevitable terminations, ultimately, of both parents of the prior generation, SIMPLY MUST involve other major changes too, also significantly sometimes including, the creation of the Wholly New! Yet, exactly how all those changes in Thinking, physically emerge-and-modify what happens in the Brain is NOT known.

There is no developing Physical Model of the Brain: it, instead, is conceived-of, as an eminently-flexible organ, with potentially infinite capabilities - to which I must profoundly disagree! For, what could possibly have given this matter such capabilities?

You can see why a God had to be considered as The Prime Architect with these assumptions - but it has long been just a necessary Myth!

And, with the usual regular errors imposed upon all discusions of causes, due to the confusion about Names, especially when they are applied to things such as Forms, as explained earlier in this piece - so that NO meaningful conclusions are arrived at, and making regularly sound conclusions impossible to achieve, and the consequent generated problems are thereafter rarely, if ever, addressed.

Yet, surely, it must be possible, from a real understanding of how Forms do ultimately-transform, via explicable processes, into something quite different, without letting the basic rules of supposedly intelligible Language, forever lead us into the mire!

Of course, to be able to do this, one must have seriously embarked upon a dedicated journey into The Dialectics of Change, which is NOT the accepted wisdom currently, though there are increasingly many areas where that is the only worthwhile Approach.

 

03 January, 2019

DNA and the Social Development of the Brain?


In a CARTA video available on YouTube, by Leah Krubitzer, she delivers a remarkable alternative to the usual Genome-dominated idea of development in the brain. It clearly demonstrated that though the forms-of-development within the brain are solely determined by genetics, the actual contents of those developments are NOT so determined at all, but are primarily influenced by actual use, via behaviours in the real world - especially by behaviours caused by major crises inflicted upon the recipient.





This "seems" to return to the oldest problem of all in explaining development!

Is it wholly blue-printed within the DNA (Genome) of the living entity, which effectively determines everything that subsequently occurs, though occasionally changed by what are wholly accidental Random Damages to individual Genes, OR, can things learned during life be passed on to descendants as "Acquired Characteristics" (such as in current epigenetics and a return to Lamarckism)?

For, her contribution could also be seen in that way, but that certainly isn't, and indeed wasn't her case either. What Leah Kubitzer reveals is more a development of the former than a return to the latter as will I hope be revealed!

Indeed, various studies both of unusually sensually-equipped animals both occurring naturally, as well as in addition others having had their sensorial means artificially totally-restricted, and the effects on their brains compared over many individuals.

The results were remarkable!

Actual use, over time, had physically-changed the brains involved.

Particular areas of the brain appeared transformed in the animals artificially reduced in sensorial abilities, to enhance some of those that remained, to end up with a brain-structure similar to that of the duck-billed Platypus, whose brain-area dedicated to its super-sensory bill was relatively enormously enlarged. But, the changes noticed, in both, amounted to a great multiplicity of the connections from that part of the brain to other areas within it, and consequent increases in those particular areas too, the behaviours-possible were down to those vastly increased connections, and NOT to wholly new functional areas.

The brain was physically changed by enhanced behaviours, but then, via new connections, also enabling, in addition, wholly-new further development of such behaviours.

But, there is a great deal more in these findings than what immediately presents itself.

Notice that the duck-billed Platypus, as a species, hasn't changed much in vast periods of time, and yet the particular individual animal (a possum) deprived of its sight changed at a remarkable rate, and made all the necessary developments very early in its life - the initial period was absolutely crucial.




Nothing new was available to that animal, indeed it was a deprivation that precipitated the developments.

But, we already have a process in which the given Genome of an animal delivers all its "built-in" behaviours, with any changes being down to random chance mutations of genes. And, in addition, it is supposed to be only by such purely random damage to the genome that any changes can ever happen, and thereafter by Natural Selection, which chooses the best adaptations to predominate over succeeding generations.

Is not that single one-way causality also somewhat challenged by these findings?

For, the deprived individual animals developed not only new connections in their brains, but also enhanced, or even new, behaviours benefiting from those changes.

Yet, the developments in the brain must also be inherited! How else do modern animals including ourselves come to be as they are? And, at the same time, why do some organisms remain unchanged for millions of years?

Mankind has, in the past, clearly revealed important processes in this area, but, as usual, always conceptually simplified them in order to more easily develop them further - for simplifying Abstractions always enable such things (see all of Mathematics!).

And, there has to be more to the mostly wholly redundant and unused majority of any organism's Genome, where the genes seem to be in "rooms used as depositories of rubbish, and like those in many a Stately Home, full of no longer used cast offs".

I don't believe in 'junk' DNA! It is more likely that this represents The Past of that organism in some way, in its evolutionary development: occasionally transformed by mutations, but later bypassed either temporarily or permanently, as a repository of things that once worked but now bypassed. Could this be how prior evolutionary solutions return, in supposedly convergent evolution, such as the return of fish-like traits in sea mammals? 

Primarily, though, the dead weight of our pluralist history in Mathematics, Reasoning and even Science has imposed upon our thinking the myth of eternal Natural Laws and Reductionism, which fatally damages our ability to make sense of such Development at all, by falsely converting it into the mere Complexity of many summed-fixed-things and laws.

The consequent missing ingredient was therefore Real Qualitative Change, and hence the absolutely necessary means to ever understanding Creative Changes.


Darwin, Engels and Marx

Now, since Hegel and then Marx, the methodology of Dialectical Materialism had been devised to address such developments, culminating only in 2010 with the Theory of Emergences (by the writer of this paper), which finally tackled the trajectory of alternating Stabilities and Emergences that characterise Qualitative Development in literally all spheres.

And, echoes of it are clearly shown in the case of the deprivation of sight in a possum leading to a rush of developments in other senses - for in the Theory of Emergences the termination of seemingly permanent Stabilities can only be precipitated by crises that cannot be resolved from within them, and therefore necessarily results in both a collapse of the current Stability, and thereafter the consequent construction of a wholly new one, which is finally established via another and wholly different Stability and set of new capabilities!