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tcaudilllg
Dragonmaster
Joined: 20 Jun 2002
Posts: 1731
Location: Cedar Bluff, VA
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 Posted: Mon Oct 24, 2005 11:10 pm Post subject: About psyche type |
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Wikipedia is proving more and more informative all the time. Amazing how up to date and relevant the information is!
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http://en.wikipedia.org/wiki/Central_nervous_system
The central nervous system (CNS) represents the largest part of the nervous system. Together with the peripheral nervous system, it has a fundamental role in the control of behaviour.
Since the strong theoretical influence of cybernetics in the fifties, the CNS is conceived as a system devoted to information processing, where an appropriate motor output is computed as a response to a sensory input. Yet, many threads of research suggest that motor activity exists well before the maturation of the sensory systems and then, that the senses only influence behaviour without dictating it. This has brought the conception of the CNS as an autonomous system.
The whole CNS originates from the neural plate, a specialised region of the ectoderm, the most external of the three embryonic layers. During embryonic development, the neural plate folds and forms the neural tube. The internal cavity of the neural tube will give rise to the ventricular system. The regions of the neural tube will differentiate progressively into transversal systems. First, the whole neural tube will differentiate into its two major subdivisions: spinal cord (caudal) and brain (rostral). Consecutively, the brain will differentiate into brainstem and prosencephalon. Later, the brainstem will subdivide into rhombencephalon and mesencephalon, and the prosencephalon into diencephalon and telencephalon.
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The rhombencephalon controls sensory perception.
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The cerebellum (Latin: "little brain") is a region of the brain that plays an important role in the integration of sensory perception and motor output. Many neural pathways link the cerebellum with the motor cortex—which sends information to the muscles causing them to move—and the spinocerebellar tract—which provides feedback on the position of the body in space (proprioception). The cerebellum integrates these two functions, using the constant feedback on body position to fine-tune motor movements.
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The pons is a knob on the brain stem. It is part of the autonomic nervous system, and relays sensory information between the cerebellum and cerebrum. Some theories posit that it has a role in dreaming.
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We are only interested in those parts of the brain that relate directly to the development of "self", however, so only the cerebellum is relevant here. Individuals who's physiological development is biased towards the cerebellum have better natural (i.e., "talented") hand-eye coordination compared to those who don't. The "sensing" function is (partially) identified.
To find the intuitive functions, we need to look to the
telencephalon. Here we also find most of the personality. The intuitive function is abstract by nature, therefore it resides in the temporal lobe.
Judgement and perception play dueling roles in the frontal lobe.
The frontal lobe also controls the "extroverted" and "introverted" functions.
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Frontal lobes have been found to play a part in impulse control, judgment, language, memory, motor function, problem solving, sexual behavior, socialization and spontaneity. Frontal lobes assist in planning, coordinating, controlling and executing behavior. People who have damaged frontal lobes may experience problems with these aspects of cognitive function, being at times impulsive; impaired in their ability to plan and execute complex sequences of actions; perhaps persisting with one course of action or pattern of behavior when a change would be appropriate (perseveration).
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The feeling functions are controlled in the amygdala, and in conjunction with other regions.
Finally, the behaviorial "learned" aspects of the psyche emerge in the frontal lobe.
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The frontal lobes also play an important part in retaining longer term memories which are not task-based. These are often memories with associated emotions, derived from input from the brain's limbic system, and modified by the higher frontal lobe centers to generally fit socially acceptable norms (see executive functions above). The frontal lobes have rich neuronal input from both the alert centers in the brainstem, and from the limbic regions.
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Libido flows as dopimine.
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Dopamine-sensitive neurons in the cerebral cortex are found primarily in the frontal lobes. The dopamine system is associated with pleasure, long-term memory, planning and drive. Dopamine tends to limit and select sensory information arriving from the thalamus to the forebrain. Poor regulation of dopamine pathways has been associated with schizophrenia.
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An explanation for schizophrenia unveils the mystery of crossed function.
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Located in the brain's medial temporal lobe, the almond-shaped amygdala (in Latin, corpus amygdaloideum) is believed to play a key role in the emotions. It forms part of the limbic system. In humans and other animals, it is linked to both fear responses and pleasure. Its size is positively correlated with aggressive behavior across species. In humans it is the most sexually dimorphic brain structure, and shrinks by more than 30% in males upon castration. Conditions such as anxiety, autism, depression, narcolepsy, post-traumatic stress disorder, phobias and schizophrenia are suspected of being linked to abnormal functioning of the amygdala owing to damage, developmental problems, or neurotransmitter imbalance.
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Although, I'm not yet ready to say how the phenomenon transpires.
E, I, S, N, T, F, J, P. All there and accounted for.
Now what was that about type being a pseudoscience? ;)
Update: I think the key word is "imbalance." The question is, how the dopamine is flowing. It appears to be a matter of how continuous the flow is, and what the maximum levels are at any given time... although there is little else about it that I can find. Jung believed that type functions were unable to remain dualistic for more than a moment, and that those individuals who did have "dualistic" functions were "archaic" and "primitive".
Of course he didn't talk about his own functions in that regard. ;)
I researched the pineal gland over Wikipedia also. It's been of some interest to me ever since I heard of an experiment that increased the lifespan of a rat by grafting a younger rat's pineal gland into its brain. The rat literally become younger, as in a fountain of youth. The pineal gland produces melatonin (not to be confused with the melanin byproduct of the skin), a hormone that controls the development of the body. It produces this hormone relative to its exposure to electromagnetic energy through the optic nerve. Literally, light controls how you age.
The question is, how is dopamine produced, and is it in a similar manner to melatonin? Looking this up... searching for the brain's "black hole" construct.
BTW: a black hole was created in New York in an experiment a few months ago, but it was infintessimally small and evaporated instananeously quickly. Besides probably giving Mr. Hawking the prize he has dreamed about (even if it is shared), this experiment seems completely inline with the radial particle model I developed. If a black hole was created in a controlled environment, what's to say they don't pop up all the time in nature, and evaporate just as quickly?
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tcaudilllg
Dragonmaster
Joined: 20 Jun 2002
Posts: 1731
Location: Cedar Bluff, VA
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| Posted: Tue Oct 25, 2005 8:27 pm Post subject: |
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This article demonstrates the relationship between "salience" (psychological significance and wholeness, and depth of experience) and dopamine.
http://www.sci.sdsu.edu/classes/psychology/psy860/readings/schizo.pdf
Particularly important is the noted role of salience in human relationships, especially as an unconscious factor. The concept of cross type appears to be a matter of nearly even distributions of dopamine across functions of the brain that are normally biased-by-density towards one or another. Whearas salience is demonstrated in the article to be the source of "meaning", muted salience between functions naturally corresponds to an absence of the functions' effects in the personality (which is entirely based on salience), although not in the unconscious.
This effect has great relevance to us as RPG players/lovers, because it explains why we feel so attatched to the games we play, and to the genre in general. Imbalances in salency naturally occur every few days in our brains. These are the moments of "eureka", the moments of personal triumph and fulfillment. We remember these moments most pivotally in our gameplay experiences; they represent the moments at which we become more ourselves and see the games as chapters of our own stories. We link the experience of the game, and especially, of its events and characters, to the world around us and are appreciative of a deeper significance. This effect stands in contrast to the drab, frustrating parts of the game: the tedious puzzels and level-building phases, the disappointments and unexpected defeats, and frustrations arising from them. These frustrations invariably lie in an excess of dopamine inhibiting our salience, and heightening our expectations for the future. As the dopamine withdraws, our salience increases proportionally, until the one moment where our entire personality is overcome with itself, and all the world appears deeply meaningful.
It's the reason we're posting on this site, and devoting so much of our time to making games like the ones we have experienced so fully: trying to finally attain lasting wholeness.
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Ninkazu
Demon Hunter
Joined: 08 Aug 2002
Posts: 945
Location: Location:
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| Posted: Tue Oct 25, 2005 9:15 pm Post subject: |
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Let's hear it for the human equation! Heh. Ya, it's quite an interesting topic, but I really don't like to bother too much with the in depth science of it all. Good to see some stuff like this though.
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