Webb Therapy Uncategorized The ‘Triune Brain’ theory by Neuroscientist Paul MacLean — an evolutionary perspective

The ‘Triune Brain’ theory by Neuroscientist Paul MacLean — an evolutionary perspective

The Concept of the "Triune Brain"

In the 1960s, American neuroscientist Paul MacLean formulated the ‘Triune Brain’ model, which is based on the division of the human brain into three distinct regions. MacLean’s model suggests the human brain is organized into a hierarchy, which itself is based on an evolutionary view of brain development. The three regions are as follows:

  1. Reptilian or Primal Brain (Basal Ganglia)
  2. Paleomammalian or Emotional Brain (Limbic System)
  3. Neomammalian or Rational Brain (Neocortex)

At the most basic level, the brainstem (Primal Brain) helps us identify familiar and unfamiliar things. Familiar things are usually seen as safe and preferable, while unfamiliar things are treated with suspicion until we have assessed them and the context in which they appear. For this reason, designers, advertisers, and anyone else involved in selling products tend to use familiarity as a means of evoking pleasant emotions.

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The Four Options for any Problem (Linehan, 1993)The Four Options for any Problem (Linehan, 1993)

Marsha Linehan, the creator of Dialectical Behavior Therapy, gives four options for any problem that you face: Solve the problem, change your perception of the problem, radically accept the situation, or stay miserable.

When we are overwhelmed by a life challenge, one way we might naturally respond is by defending our position. Perhaps, we’ll resort to an effective yet temporary coping strategy like denial, projection, victimhood, or blaming. We attempt to cope in ways that lessen the stress – the internal discomfort and unpleasantness. Coping strategies that offer temporary relief generally make the situation worse in the long run, especially when fostering relationships at work and in our personal lives. For example, crawling back into bed when you need to work or have commitments with friends. Maybe you over-eat, use chemicals or resent the world, which alleviates the immediate emotional pain, then feel guilty or ashamed afterward. 

Sometimes, in an effort to take action, people attempt to solve problems cognitively – problems that cannot be solved, becoming more and more frustrated when their efforts don’t work. Others become paralyzed or dissociate, unable to decide what to do. Intense emotions can be overwhelming, fatiguing, and compromise our ability to think with an open heart and a clear mind. Searching endlessly for the right solution adds to anxiety and distress.

Marsha Linehan, the creator of Dialectical Behavior Therapy, gives four options for any problem that you face: Solve the problem, change your perception of the problem, radically accept the situation, or stay miserable.

Choice 1: Solve the Problem.

There are many problem-solving strategies, but most use the same steps. First, define the problem. Be as specific as possible. Use numbers whenever possible. For example, “I’ve been late for work four days this week.”

Next, analyze the problem. Is it in your power to solve the problem? If not, then consider one of the other three options. If yes, then continue to analyze the problem.

What are the reasons you’ve been late? Is the reason always the same?  Does it depend on your mood or what time you went to bed? Does it depend on what tasks you have to do at work? Who you work with? Where you went the night before?  Consider the who, what, when, and where of the behavior you want to change.

The third step is to consider possible solutions. Think of various solutions that could solve the problem. Evaluate the solutions carefully to determine which might work best for you. What are the pros and cons of different actions? What could go wrong? What can you do to make the solution more likely to work?

For example, if you decide to give yourself a weekly budget and to freeze your credit cards in a block of ice, what would you do in case of an emergency? Would giving yourself a certain amount of spending money for the day work better than an amount for the week?

A key variable to remember is how difficult it is to make changes in behavior. A strong commitment to change is important. Be specific in stating the change you want to make. Be willing to make small changes at first. Implement the solution: Take action. Trouble-shoot as you go along, tweaking it to resolve any issues you didn’t anticipate.

Choice 2: Change Your Perception.

Changing your perception of the problem can be a challenge. An example of changing your perception of a problem might be to see a difficult boss as an opportunity to work on coping with someone who is disorganized and demanding. If you feel irritated because your house is cluttered with toys, maybe change your perception to one that the clutter is a signal to be grateful for young children in the home. Changing your perception could also mean changing your view of emotion. Instead of trying never to feel anger, look at your frustration as a source of information, perhaps a signal that you need to speak up for yourself.

Choice 3: Radically Accept the Situation.

Radical Acceptance means wholeheartedly accepting what is real. Radical acceptance is like saying, “It is what it is,” and giving up your resistance to the situation. Radical acceptance could be about issues we can’t control or concerns that we decide not to change, at least for the time being. It doesn’t mean you agree with what has happened or that you think it is reasonable.

Choice 4: Stay Miserable.

Of course, staying miserable is not a choice anyone wants to make, and no one would want to consider it as an option. But if you can’t solve the problem, can’t change your perception, and you aren’t ready to radically accept the situation, then staying miserable is the only option left.

Staying miserable may be all you can do in certain situations. Sometimes staying miserable may be what you have to do until you are ready to do something else. There are ways to cope that can help until another option can be used.

In future posts, we’ll look at specific skills that enhance your ability to problem-solve, change your perception, or radically accept situations. We’ll also consider ways to get through the times when you can’t make any of those choices.

Polyvagal Theory and Trauma – Dr. Stephen PorgesPolyvagal Theory and Trauma – Dr. Stephen Porges

Stephen Porges, psychiatry professor and researcher, on the polyvagal theory he developed to understand our reactions to trauma:

[Paraphrased] Polyvagal theory articulates three branches of the autonomic nervous system (ANS) that evolved from primitive vertebrates to mammals. First, there is a system known as ‘freeze’, which involves death feigning or immobilisation. Second, the ANS has a ‘fight or flight’ system, which is a mobilisation system. And third, with mammals, there is what Porges calls, a social engagement system (SES), which can detect features of safety, and actually communicate them to another. The SES may also be referred to by some as ‘rest and digest’, which Porges theory suggests is a function of the Vagus Nerve – the tenth cranial nerve, a very long and wandering nerve that begins at the medulla oblongata. When an individual experiences feelings of safety (within an SES state), the autonomic nervous system can support health restoration. In terms of dealing with a life threat, an ordinary person will most likely go into a feigning death, dissociative state of ‘freeze’.

Polyvagal theory in psychotherapy offers emotional co-regulation as an interactive process between therapist and client which engages the social engagement system of both therapist and client. Social engagement provides experiences of safety, trust, mutuality and reciprocity in which we are open to receiving another person, just as they are.

The following extract has been retrived from https://www.theguardian.com/society/2019/jun/02/stephen-porges-interview-survivors-are-blamed-polyvagal-theory-fight-flight-psychiatry-ace

Polyvagal theory has made inroads into medical and psycho-therapeutic treatment, but how should it inform how people treat each other?


“When we become a polyvagal-informed society, we’re functionally capable of listening to and witnessing other people’s experiences, we don’t evaluate them. Listening is part of co-regulation: we become connected to others and this is what I call our biological imperative. So when you become polyvagal-informed you have a better understanding of your evolutionary heritage as a mammal. We become aware of how our physiological state is manifested, in people’s voices and in their facial expression, posture and basic muscle tone. If there’s exuberance coming from the upper part of a person’s face, and their voice has intonation modulation or what’s called prosody, we become attracted to the person. We like to talk to them – it’s part of our co-regulation.

So when we become polyvagal-informed, we start understanding not only the other person’s response but also our responsibility to smile and have inflection in our voice, to help the person we’re talking to help their body feel safe.”

Clink on the link below to hear Dr. Bessel van der Kolk, one of the world’s leading experts on developmental trauma, explain how our long-term health and happiness can be compromised by prior exposure to violence, emotional abuse, and other forms of traumatic stress.

https://youtu.be/53RX2ESIqsM

Fact. Truth. Belief. They are related but distinct. Here’s a clear explanation showing how they differ and interact:Fact. Truth. Belief. They are related but distinct. Here’s a clear explanation showing how they differ and interact:


1. Fact

Definition:
A fact is something that is objectively real and can be proven to be true. It exists independently of what anyone thinks or believes.

Example:

  • It is a fact that Australia is in the Southern Hemisphere.

Key Points:

  • Facts don’t change based on opinion.
  • They can be verified with evidence (e.g. scientific data, observation, reliable records).
  • Facts are the foundation upon which truth claims and beliefs can be tested.

2. Truth

Definition:
Truth is a quality of a statement or belief that accurately reflects reality or fact.

Example:

  • “Australia is in the Southern Hemisphere” is a true statement because it corresponds with the fact.

Key Points:

  • Truth depends on alignment with facts.
  • Truth is often expressed in language or claims (“That’s true”, “That’s not true”).
  • Something can be true even if no one believes it (e.g. the Earth orbited the Sun even when most people thought otherwise).

3. Belief

Definition:
A belief is something a person thinks or accepts as true, whether or not it actually is.

Example:

  • Someone might believe that kangaroos can be kept as pets in all Australian states — but that belief isn’t necessarily true or factual.

Key Points:

  • Beliefs are subjective — they vary between individuals and cultures.
  • A belief can be true or false, depending on whether it aligns with facts.
  • People often act based on their beliefs, regardless of whether they are accurate.

How They Interact

  • A belief can be true or false:
    → If your belief aligns with fact, it’s true.
    → If not, it’s false — even if sincerely held.
  • Truth depends on fact:
    → A statement is true if it correctly describes a fact.
  • Facts stand alone:
    → They are not changed by belief or opinion.