The Corpus Callosum
The Corpus Callosum is an occasional journal of armchair musings, by a suburban, reality-based, slightly-left-of-center guy, who reserves the right to be highly irregular at times. Topics: social commentary, neuroscience, politics, science news. Mission: to develop connections between hard science and social science, using linear thinking and intuition; and to explore the relative merits of spontaneity vs. strategy.
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Corpus Callosum is written by a psychiatrist at a small community hospital somewhere in the USA. Email to cc.scienceblogger at gmail dot com.
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« Training the Expert Mind, Part II: Medical Diagnosis | Main | Another Mind-Body Link »
Understanding Mental Illness
Category: Armchair Musings • Psychiatry
Posted on: August 24, 2006 8:09 AM, by Joseph j7uy5
Understanding, after all, is merely an act of description. It arises from the collation of observations.
To understand something is to be able to describe that thing on all pertinent levels of abstraction. In the case of mental illness, that means description on levels from the molecular to the sociocultural. At least at this time. It may be that quantum mechanics is involved, in which case you'd have to go beyond the molecular level to the subatomic level.
Sometimes I hear people talking about getting to the root of the matter, or the core issues, or something like that, and I feel perplexed. The nexus of observations necessary to understand what is going on is an ill-defined n-dimensional space. It does not have a core, or roots, or anything like that. There is no surface; thus, there is nothing beneath the surface.
And no part of the knowledge space is more important, a priori, than any other part.
That is not to say that it is impossible to rank the knowledge in terms of degrees of importance. It is just that what makes one aspect more important that another changes according to context.
Sometimes, what is important at the moment is 5-HT, or maybe even TREK-1. Sometimes it is the tissue level, such as Area 25. Sometimes you have to forget all that, and look at society and culture.
Sometimes, it is hard to know which is the important part of the knowledge space to pay attention to. Sometimes, you just have to listen to the patient, who usually will tell you what is important.

Comments
How, I wonder, do cultural and societal experiences cause the chemical changes within the brain? That, to me, is fascinating. After all, one doesn't just "go crazy," does one? There are still chemical changes associated with something like PTSD, aren't there?
Mixter
Posted by: Mixter | August 24, 2006 2:01 PM
Joseph. Put down whatever you're smokin' in those armchair musings.
There are indeed some things that we do know.
There are phenomena that we see and sometimes see repeatedly.
There is an urge that our brains have to form gestalts from what we know and see, in the meanwhile filling in the blank spots with stuff that sure seems as real as the rest.
The challenge can sometimes be to hang on to the real dots before our brain connects them, so we're able to track back for alternative gestalts if we need them.
Posted by: Greg P | August 24, 2006 5:16 PM
When I hear someone say that they'd like to "cut to the chase" or "get to the heart of the matter", or use other similar phrases, what I try to remind myself is that they usually mean, "Let's focus on the aspect of our topic that I consider to be important, or the discussion of which I think is likely to achieve the results I am seeking". Just an aside.
Posted by: Stumpy | August 24, 2006 9:18 PM