maandag 3 juni 2019

Your mind isn't deep at all. In fact, it's flat.

Repeating an article:

Your mind isn't deep at all. In fact, it's flat.

In his new book, Nick Chater writes that what we see is what we get.

A box of crackers features the tagline, “Conscious eating.” An artistic subgroup embraces the Burning Man ethos: “Conscious music.” This self-declared genre arises from the same set that talks about techniques for “higher consciousness.” In every instance, the sentiment is obvious: my product is better than yours because there's something deeper going on over here.
Consciousness, from their perspective, is like a ladder descending into an unfathomable abyss. This depth can be penetrated, through meditation, through breathing exercises or austerities, through faith or sheer willpower or a combination of the two, or through, apparently, eating crackers. For some, higher consciousness is handed down at birth, from a past life, or bestowed by a teacher, as in the Indian idea of shaktipat. Whatever the method, everyday consciousness only scratches the surface. Something deeper exists, waiting to be mined by the steadfast observer.
A deep sigh of relief washed over me when reading that Nick Chater called the notion of higher consciousness “nonsense on stilts.” The British behavioral scientist doesn’t mince words in his new book, The Mind is Flat. While many believe consciousness to be a hidden mystery few can access, Chater's take on this evolutionary phenomenon is quite pedestrian. What you see is effectively what you get.
No amount of therapy, dream analysis, word association, experiment or brain-scanning can recover a person’s ‘true motives,’ not because they are difficult to find, but because there is nothing to find. The inner, mental world, and the beliefs, motives, and fears it is supposed to contain is, itself, a work of the imagination.
This is not shocking if you consider consciousness in its most fundamental regard. By definition, consciousness is simply what you’re paying attention to at the moment, which can amount to no more than four or five things. You can refine from there: the goal of meditation, for example, is to focus on one thing—a mantra, a candle flame, your breathing, something basic and accessible. Whether you’re an expert meditator or chronic multitasker, the effects on consciousness are physiological, not mystical.
Yet that’s not how we feel, which is why Chater’s book is likely to rattle many mental cages. An emotion, he says, is an interpretation of a physiological change in your body. He’s not the first thinker to posit this; Lisa Feldman Barrett wrote an entire book on this topic. While this will not square well with those who claim they know something to be true because they feel it, Chater’s point should not be dismissed. Anecdotal interpretations have the habit of often being wrong.
We actually have a limited set of feelings. Think about the innumerable issues that cause a stomach to churn. Context matters, and in this sense, our brain contextualizes the physical sensations based on past experiences. Memory is fluid but based on prior events. Essentially, Chater states that we're just making it all up as we go along.
Volume 90%
 
We crave narrative and go to great lengths to fill in incomplete stories regardless of the validity of assumptions being made. This is why Chater thinks the role of psychotherapy is dated. He calls the Jungian notion of a collective unconscious “the astrology of psychology,” rather fitting given that Jung speculated that UFOs are psychic projections from our hidden collective drive. To Chater, comparing Jungian analysis to psychology is akin to relating astrology to astronomy. One exploits patterns of thought and behavior in an attempt to derive coherence, while the other relies on data to pinpoint exact locations and predictable patterns.
Chater believes psychotherapy feeds the illusion of a hidden depth and claims the industry is on the outs.
[Psychotherapy is] doomed by the fact that there is not a deep inner story that is hiding from you. Rather, you’ve got the first draft or a set of incoherent notes for a novel. You’ve got an incoherent muddle. And we’re all incoherent muddles to some degree. But when some of those incoherencies cause us problems, when we’re terrified of something we very much want to do, even something as narrow as a fear of spiders, these are conflicts in our thinking and reactions.
In his latest book, The Strange Order of Things, neuroscientist Antonio Damasio writes that feelings are “for” life regulation. They provide essential information to help us remain in homeostasis. If something is out of whack a feeling lets us know. Again, context matters. Our stomach gets jittery if we’ve eaten something rotten and when we’re courting a romantic partner. As Damasio states, feelings alert us to potential danger as well as potential opportunity. There is nothing metaphysical about the process.


But we perceive it to be other, as Chater writes. Instead of a perception refined by years of experiences, we come to feel that the deep well of the unconscious is simmering below the surface, like the famed kundalini energyat the base of the spine. Hyperventilate enough and you unleash its fury. Well, true, Chater might say—hyperventilate enough and your nervous system is certainly going to react in peculiar and dangerous ways.
Does this make psychotherapy useless? Not so fast, Chater concludes. First off, talking to another is proven medicine. Chater also says creativity is an important aspect of our humanity. Ingenious solutions can be worked out between a therapist and patient, provided it's understood as a metaphor. His contention seems to be assuming metaphor to represent reality as stated. Constructing new patterns of thought and behavior has therapeutic utility; uncovering unconscious motives or beliefs is not only counterproductive but dangerous:
The reason I think the unconscious is a dangerous metaphor is because it gives you the impression that mental things that are unconscious could be conscious. This whole idea of uncovering things from the unconscious and making them conscious has the presupposition that they are of the same type.
He compares this yearning for a hidden depth to Freud's iceberg: consciousness at the top, the real story under the surface, which Chater says is a mistaken analysis of how our brains actually work.
The things we’re conscious of—experiences, thoughts, fragments of conversation—are completely different in type from the things we’re unconscious of—all these mysterious brain processes, which lay down and retrieve memories, piece fragments of information together, and so on. The brain is doing lots of unconscious work—but it is not thought in any way we understand it.
What is unconscious can never be made conscious because the information is inaccessible by design. I’ll never be conscious of my liver detoxifying my blood, but if something goes wrong in that process I’ll certainly feel the result. If the unconscious could be made conscious, we’d never need a doctor to diagnose an illness; our body would tell us.
We’re just not as deep as we think, which is fine: we have plenty of work to do on the surface. Perhaps if we stop taking so many metaphors as reality, we’d get along much better, with ourselves and those around us. There’s plenty to see when we open our eyes. Closing them to seek a treasure causes us to miss the treasure right before us.
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Homeostasis...

Article: Homeostasis and the Regulation of the body.

  Deductions: 'Mental Health': emotions-> thoughts/brainwaves, +,- charges are a result of a chemical, electrical change, triggered by external impulses; em frequencies ,  (electro)chemicals,  through which homeostasis is obtained/or disrupted



The Energy Homeostasis Principle: A Naturalistic Approach to Explain the Emergence of Behavior

DISRUPT THE (NEUROLOGICAL) ENERGY HOMEOSTASIS BY EXOGENOUS IMPULSES: MANIPULATION: CREATING A.O. ENTROPY/CHAOS, DISRUPTED BEHAVIOR AND ALL KIND OF  CONSEQUENCES AND CONDITIONS



ADDING AS WELL  THE  LINK  TO THE SIGNIFICANT WORK: THE  WISDOM OF THE BODY, FROM  1932, BY WALTER B. CANNON  (PHYSIOLOGY/HOMEOSTASIS)









Article objectives

  • To identify the process by which body systems are kept within certain limits.
  • To explain the role of feedback mechanisms in homeostasis.
  • To distinguish negative feedback from positive feedback.
  • To identify and example of two organ systems working together to maintain homeostasis.
  • To summarize the role of the endocrine system in homeostasis.
  • To outline the result of a disturbance in homeostasis of a body system.

  • The human body is made up of trillions of cells that all work together for the maintenance of the entire organism. While cells, tissues, and organs may perform very different functions, all the cells in the body are similar in their metabolic needs. Maintaining a constant internal environment by providing the cells with what they need to survive (oxygen, nutrients, and removal of waste) is necessary for the well-being of individual cells and of the entire body. The many processes by which the body controls its internal environment are collectively called homeostasis. The complementary activity of major body systems maintains homeostasis.

    Homeostasis

    Homeostasis refers to stability, balance, or equilibrium within a cell or the body. It is an organism’s ability to keep a constant internal environment. Homeostasis is an important characteristic of living things. Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell. The adjusting of systems within a cell is called homeostatic regulation. Because the internal and external environments of a cell are constantly changing, adjustments must be made continuously to stay at or near the set point (the normal level or range). Homeostasis can be thought of as a dynamic equilibrium rather than a constant, unchanging state.
    Feedback Regulation Loops
    The endocrine system plays an important role in homeostasis because hormones regulate the activity of body cells. The release of hormones into the blood is controlled by a stimulus. For example, the stimulus either causes an increase or a decrease in the amount of hormone secreted. Then, the response to a stimulus changes the internal conditions and may itself become a new stimulus. This self-adjusting mechanism is called feedback regulation.
    Feedback regulation occurs when the response to a stimulus has an effect of some kind on the original stimulus. The type of response determines what the feedback is called. Negative feedback occurs when the response to a stimulus reduces the original stimulus. Positive feedback occurs when the response to a stimulus increases the original stimulus.
    Thermoregulation: A Negative Feedback Loop
    Negative feedback is the most common feedback loop in biological systems. The system acts to reverse the direction of change. Since this tends to keep things constant, it allows the maintenance of homeostatic balance. For instance, when the concentration of carbon dioxide in the human body increases, the lungs are signaled to increase their activity and exhale more carbon dioxide, (your breathing rate increases). Thermoregulation is another example of negative feedback. When body temperature rises, receptors in the skin and the hypothalamus sense the temperature change. The temperature change (stimulus) triggers a command from the brain. This command, causes a response (the skin makes sweat and blood vessels near the skin surface dilate), which helps decrease body temperature. Figure 1 shows how the response to a stimulus reduces the original stimulus in another of the body’s negative feedback mechanisms.
    Figure 1: Control of blood glucose level is an example of negative feedback. Blood glucose concentration rises after a meal (the stimulus). The hormone insulin is released by the pancreas, and it speeds up the transport of glucose from the blood and into selected tissues (the response). Blood glucose concentrations then decrease, which then decreases the original stimulus. The secretion of insulin into the blood is then decreased.
    Positive feedback is less common in biological systems. Positive feedback acts to speed up the direction of change. An example of positive feedback is lactation (milk production). As the baby suckles, nerve messages from the mammary glands cause the hormone prolactin, to be secreted by the pituitary gland. The more the baby suckles, the more prolactin is released, which stimulates further milk production.
    Not many feedback mechanisms in the body are based on positive feedback. Positive feedback speeds up the direction of change, which leads to increasing hormone concentration, a state that moves further away from homeostasis.

    System Interactions

    Each body system contributes to the homeostasis of other systems and of the entire organism. No system of the body works in isolation and the well-being of the person depends upon the well-being of all the interacting body systems. A disruption within one system generally has consequences for several additional body systems. Most of these organ systems are controlled by hormones secreted from the pituitary gland, a part of the endocrine system. Table 1 summarizes how various body systems work together to maintain homeostasis.
    Main examples of homeostasis in mammals are as follows:
    • The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens primarily in the kidneys.
    • The removal of metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs.
    • The regulation of body temperature. This is mainly done by the skin.
    • The regulation of blood glucose level. This is mainly done by the liver and the insulin and glucagon secreted by the pancreas in the body.
    Table 1: Types of Homeostatic Regulation in the Body
    Homeostatic ProcessesHormones and Other MessengersTissues, Organs and Organ Systems Involved
    Osmoregulation (also known as excretions)Excess water, salts, and urea expelled from bodyAntidiuretic hormone (ADH), aldosterone, angiotensin II, carbon dioxideKidneys, urinary bladder, ureters, urethra (urinary system), pituitary gland (endocrine system), lungs (respiratory system)
    ThermoregulationSweating, shivering, dilation/constriction of blood vessels at skin surface, insulation by adipose tissue, breakdown of adipose tissue to produce heatNerve ImpulsesSkeletal muscle (muscular system), nerves (nervous system), blood vessels (cardiovascular system), skin and adipose tissue (integumentary system), hypothalamus (endocrine system)
    Chemical Regulation (including glucoregulation)Release of insulin and glucagon into the blood in response to rising and falling blood glucose levels, respectively; increase in breathing rate in response to increases carbon dioxide levels in the blood, and release of carbon dioxide into exhaled air from lungs, secretion of erythropoietin by kidneys to stimulate formation of red blood cellsInsulin, glucagon, cortisol, carbon dioxide, nerve impulses, erythropoietin (EPO)Pancreas (endocrine system), liver (digestive system); adrenal glands (endocrine system) lungs (respiratory system), brain (nervous system), kidneys (urinary system)

    Endocrine System

    The endocrine system, shown in Figure 2, includes glands which secrete hormones into the bloodstream. Hormones are chemical messenger molecules that are made by cells in one part of the body and cause changes in cells in another part of the body. The endocrine system regulates the metabolism and development of most body cells and body systems through feedback mechanisms. For example, Thyrotropin-Releasing Hormone (TRH) and Thyroid Stimulating Hormone (TSH) are controlled by a number of negative feedback mechanisms. The endocrine glands also release hormones that affect skin and hair color, appetite, and secondary sex characteristics of males and females.
    Figure 2: The endocrine system controls almost every other body system through feedback mechanisms. Most of the mechanisms of the endocrine system are negative feedback.
    The endocrine system has a regulatory effect on other organ systems in the human body. In the muscular system, hormones adjust muscle metabolism, energy production, and growth. In the nervous system, hormones affect neural metabolism, regulate fluid and ion concentration and help with reproductive hormones that influence brain development.

    Urinary System

    Toxic wastes build up in the blood as proteins and nucleic acids are broken down and used by the body. The urinary system rids the body of these wastes. The urinary system is also directly involved in maintaining proper blood volume. The kidneys also play an important role in maintaining the correct salt and water content of the body. External changes, such as a warm weather, that lead to excess fluid loss trigger feedback mechanisms that act to maintain the body’s fluid content by inhibiting fluid loss. The kidneys also produce a hormone called erythropoietin, also known as EPO, which stimulates red blood cell production.

    Reproductive System

    The reproductive system does little for the homeostasis of the organism. The reproductive system relates instead to the maintenance of the species. However, sex hormones do have an effect on other body systems, and an imbalance in sex hormones can lead to various disorders. For example, a woman whose ovaries are removed early in life is at higher risk of developing osteoporosis, a disorder in which bones are thin and break easily. The hormone estrogen, produced by the ovaries, is important for bone growth. Therefore, a woman who does not produce estrogen will have impaired bone development.

    Disruption of Homeostasis

    Many homeostatic mechanisms keep the internal environment within certain limits (or set points). When the cells in your body do not work correctly, homeostatic balance is disrupted. Homeostatic imbalance may lead to a state of disease. Disease and cellular malfunction can be caused in two basic ways: by deficiency (cells not getting all they need) or toxicity (cells being poisoned by things they do not need). When homeostasis is interrupted, your body can correct or worsen the problem, based on certain influences. In addition to inherited (genetic) influences, there are external influences that are based on lifestyle choices and environmental exposure. These factors together influence the body’s ability to maintain homeostatic balance. The endocrine system of a person with diabetes has difficulty maintaining the correct blood glucose level. A diabetic needs to check their blood glucose levels many times during the day, as shown in Figure 3, and monitor daily sugar intake.
    Figure 3: A person with diabetes has to monitor their blood glucose carefully. This glucose meter analyses only a small drop of blood.
    Internal Influences: Heredity
    Genetics: Genes are sometimes turned off or on due to external factors which we have some control over. Other times, little can be done to prevent the development of certain genetic diseases and disorders. In such cases, medicines can help a person’s body regain homeostasis. An example is the metabolic disorder Type 1 diabetes, which is a disorder where the pancreas is no longer producing adequate amounts of insulin to respond to changes in a person’s blood glucose level. Insulin replacement therapy, in conjunction with carbohydrate counting and careful monitoring of blood glucose concentration, is a way to bring the body’s handling of glucose back into balance. Cancer can be genetically inherited or be due to a mutation caused by exposure to toxin such as radiation or harmful drugs. A person may also inherit a predisposition to develop a disease such as heart disease. Such diseases can be delayed or prevented if the person eats nutritious food, has regular physical activity, and does not smoke.
    External Influences: Lifestyle
    Nutrition: If your diet lacks certain vitamins or minerals your cells will function poorly, and you may be at risk to develop a disease. For example, a menstruating woman with inadequate dietary intake of iron will become anemic. Hemoglobin, the molecule that enables red blood cells to transport oxygen, requires iron. Therefore, the blood of an anemic woman will have reduced oxygen-carrying capacity. In mild cases symptoms may be vague (e.g. fatigue), but if the anemia is severe the body will try to compensate by increasing cardiac output, leading to weakness, irregular heartbeats and in serious cases, heart failure.
    Physical Activity: Physical activity is essential for proper functioning of our cells and bodies. Adequate rest and regular physical activity are examples of activities that influence homeostasis. Lack of sleep is related to a number of health problems such as irregular heartbeat, fatigue, anxiety, and headaches. Being overweight and obesity, two conditions that are related to poor nutrition and lack of physical activity greatly affect many organ systems and their homeostatic mechanisms. Being overweight or obese increases a person’s risk of developing heart disease, Type 2 diabetes, and certain forms of cancer. Staying fit by regularly taking part in aerobic activities such as walking, shown in Figure 4, has been shown to help prevent many of these diseases.
    Figure 4: Adding physical activity to your routine can be as simple as walking for a total of 60 minutes a day, five times a week.
    Mental Health: Your physical health and mental health are inseparable. Our emotions cause chemical changes in our bodies that have various effects on our thoughts and feelings. Negative stress (also called distress) can negatively affect mental health. Regular physical activity has been shown to improve mental and physical well-being and helps people to cope with distress. Among other things, regular physical activity increases the ability of the cardiovascular system to deliver oxygen to body cells, including the brain cells. Medications that may help balance the amount of certain mood-altering chemicals within the brain are often prescribed to people who have mental and mood disorders. This is an example of medical help in stabilizing a disruption in homeostasis.
    Environmental Exposure
    Any substance that interferes with cellular function and causes cellular malfunction is a cellular toxin. There are many different sources of toxins, for example, natural or synthetic drugs, plants, and animal bites. Air pollution, another form of environmental exposure to toxins is shown in Figure 5. A commonly seen example of an exposure to cellular toxins is by a drug overdose. When a person takes too much of a drug that affects the central nervous system, basic life functions such as breathing and heartbeat are disrupted. Such disruptions can results in coma, brain damage, and even death.
    Figure 5: Air pollution can cause environmental exposure to cellular toxins such as mercury.
    The six factors described above have their effects at the cellular level. A deficiency or lack of beneficial pathways, whether caused by an internal or external influence, will almost always result in a harmful change in homeostasis. Too much toxicity also causes homeostatic imbalance, resulting in cellular malfunction. By removing negative health influences and providing adequate positive health influences, your body is better able to self-regulate and self-repair, which maintains homeostasis.

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