Making concepts simple: using language and metaphor
I have written two chapters from the perspective of the brain speaking, ââMy life storyâ by the brainâ (Part I) and âNarrative-inspired interview with the brainâ (Part II). The aim was to help introduce complex concepts around brain development and brain injury to readers using simple, accessible language. I believe in making complex concepts user-friendly; otherwise, knowledge can be lost to language. Stories seem to me to be a natural forum open to children and adults alike, allowing us to connect to our innately creative and fantastic imaginations.
Story lines and characters can be used to form a bridge between semantic knowledge and our natural ways of weaving meaning in conversation and stories. âMini-worldsâ can capture enormous detail, as long as meaning connects the details together. I wanted both chapters to demonstrate this idea. I hope they will be a springboard to others to use fun and creative means to connect crystallised knowledge to our natural ways of making meaning in our lives together.
For instance, another project I am currently developing with Jon Ettey, a doctorate student, uses narrative principles to personify and externalise the different lobes of the brain so that children and adults can better hold on to their functions, their vulnerabilities and what they need from themselves and others to recovery from injury. âThe Lobe Familyâ will be one of the first (if not the first) theoretically and therapeutically grounded psychoeducational packages co-constructed directly with children with an acquired brain injury (ABI). Each character will have a personality demonstrating the main functions of the lobe and will âtalkâ to the user. The way they interact will demonstrate what we know about the development of the brain and principles of connectivity, plasticity, environmental-dependency/expectancy and effects of rehabilitation.
All of these resources can be used with children and adults to increase their mastery of knowledge that forms a solid basis for understanding and reclaiming their own agency in a situation where they may often feel stripped of their role and expertise. In Part II, âThe Narrative-inspired interview with the brainâ purposefully does not include academic references but follows the work of Michael White (2007) as a basis for the questions the fictitious narrative therapist uses. I felt that making this more explicit, in the actual interview, deflated its emotional impact. â âMy life storyâ by the brainâ, as a more complex endeavour, required endnotes throughout, as I felt this would enhance the reading and rigour of the chapter. The Brain will now talk you through its âlife storyâ from birth to old age.
Conception to birth: the worm in the womb
I was born just three weeks after conception. Funny to think that I began life as a plate and then a tube!1 When I look at my electron microscopic baby pictures, I cringe, as I resemble a fat earthworm. Thank goodness they didnât have social media back then. I develop at the âheadâ of the worm, and the âtailâ then becomes the spinal cord. Together, we are the central nervous system, the figurative and literal âbackboneâ; of our minds and bodies.
The spinal cord gets off the blocks fast and begins to develop its first synapses2 by week five. This allows the first movements of my embryonic body just a week later and at ten weeks even more refined actions, such as hiccupping and sucking my thumb. I am more of a slow burner when it comes to ripening, playing the âlong gameâ as they say. In this game of âheads or tailsâ, this flip is always rigged to âTailsâ.
Whilst I may mature at a slower rate, I am still rapidly generating my brain cells3 and by week five, I have formed three bulgy areas of my wormy and tube-like self, towards my front, middle and back. Two weeks later, the front and back areas have both divided into two.4 These each become more intricate with time. Itâs rather like building a house and making sure the floorplan and basic wiring is down so that all rooms are connected. Of course, the house needs a water supply, so I make four interconnected internal chambers that produce my favourite eau de vie,5 the supply of which extends into the space between me, my skull and the canal in the spinal cord.
Incidentally, within the walls of my two biggest chambers is also where I manufacture my brain cells. I make two varieties of brain cells: the vocal communicating neurones and their support act, the glia. To say I run a busy production line would be a slight understatement given that I usually make up to 80â100 billion of each variety of brain cell in the womb!6 I issue each neurone with its own passport and travel itinerary so it can immediately migrate from its place of birth to a specific destination.7 By week 24, I have almost all my neurones made.
Returning to my house-building metaphor, my front rooms are by far the largest because I need a lot of cells to make my most complex areas. Also known as my âcerebrumâ, it is the prime location that I invest in to become my cerebral hemispheres. I guess you could see them as my HQ offices.
I put most of the grey cell bodies of my neurones on the outer layer of the hemispheres â i.e. grey matter. Scientists named this the âcortexâ â the Latin word for tree bark because of the grooves they saw. Underneath my grey matter are the tails of my neurones that will eventually look white when they are covered in fat â i.e. white matter.8 I have to mention that I am careful to shrink wrap myself9 and, of course, ensure an oxygen supply to all my rooms.10
You could say I am a natural architect rather than avant-garde, I follow a similar genetic building plan to other brains, so I put things where they seem to make sense and rarely get maverick with my blueprint.11 However, this doesnât stop me from adding my individual sparkle by customising my rooms and how well they are connected to one another. A big influence on my overall interior structure and design are the experiences I am exposed to. Iâll talk more about this later.12
Once I have my cells in place, I can get my vital jobs done. Firstly, I decorate the back rooms, which are the seat of control of all my critical reflexes (this area is known as the brainstem). The moment I finish furnishing this room and do the lights-on âbig revealâ is like flicking the switch for âautopilot modeâ â it means I no longer have to worry about controlling things such as breathing, how fast my heart beats and the pressure that blood is pumped through my body. By the end of the second trimester (week 28), my brainstem is almost completely mature, which means my foetal body stands a chance of surviving outside of the womb.
Once I am sure my autopilot mode is in place, I get to work on the âthinkingâ part of my brain so I can learn about the world I am in. Scientists discovered that if they crept up and startled me with loud noises, I would eventually learn to ignore their silly games.13 Honestly, sometimes I think they assume I am just resting on my laurels as if in some kind of suspended animation, but I am busy studying â learning all about my mother: her smell, her heartbeat and her voice.14,15
Of course, I canât say that I am consciously doing this â conscious thinking comes later when my cerebral cortex comes online. You might have noticed that I have been decorating my house from back to front, a bit topsy-turvy, but when you think about it, the tail also came before the head, so I guess when it comes to my story, it is one that doesnât follow expectations.
Throughout my time in the womb, I must make sure I get enough folic acid; otherwise, the âheadâ of my tube never closes, and this would be the end of me (technically before I am even born!).16 If the âtailâ does not seal, then the spinal cord will grow without the protection of the spine.17 Also, infections, malnutrition or drug/chemical exposure can wreak havoc on my newly born neurones that are hitchhiking18 across to their forever homes and so are particularly vulnerable to attack.
Another thing I must mention before I tell you about my next big life event is that I havenât quite told you my story from the very beginning. Scientists are now reliably informing me that long before I start emerging as a plate, the âinstruction manual and programme of worksâ for my development have already been influenced, not only by the genes of my parents, but the life experiences of my mother19, 20 in particular.
Birth: eviction to exuberance
I was evicted from my lovely womb-home when I was ready enough to live without it.21 What a shock to be âoutsideâ and having lots of new sounds, smells and things I could see! I had to get used to my body not being supported by the comfort of my bathing liquid, and it was very scary at first. Luckily, I had learnt the smell, voice and heartbeat of my mother, so I knew I wasnât really alone. But I do have to admit that it took a while to really learn I was safe â because I was so dependent on my parents, I made sure they were close, by crying (a lot) so that I was gradually convinced that they hadnât forgotten about me. Flashing a few winning smiles22 seemed to make them forget the pain of those early days.
I weigh around 1 pound now, and my neurones are so excited by the world around them that they canât stop talking to one another. I am using up energy like nobodyâs business, and by the time I am 1-year-old, I am at young adult levels of power; this increases exponentially so that by the time I am 3, I am sapping 2.5 times adult levels!23 This is perhaps not surprising because in these years, I am producing 700 new neural connections every second!24 Scientists call this time my âexuberant periodâ. At an almost unimaginable rate, my cerebral cortex bursts into life â like the crescendo of a thousand New Yearâs Eve fireworks displays, my neurones make up to two million new synapses every second.25 Anything that happens to me makes a big impression. Scientists describe this as âplasticityâ26 â repeated experiences can easily become part of my âgo-toâ templates about the world27
Because I donât yet know what things are going to be important to me, I employ a âwide-netâ strategy and try to lay down the building blocks for as many memories as possible. I am glad I spent a lot of time making my neurones (approximately 86 billion of them!) before I was evicted, as now they bolt into action like a spread of runners in a relay team, each having migrated in strategic locations forming highways across my landscape of interiors.
Networks are laid down between my neuronal cell bodies in parallel with me insulating the tails of the neurones. Just like cabling a wire, the fat28 I put down means the messages relay faster and more efficiently.29 These networks are like the first imprints of my experiences,30 and the more the routes are run the more distinct they become. I put on a lot of weight after I am out of the womb because of this. In fact, I lay down so many networks, as a baby I have twice as many connections than an average adult.31
The early years equations
Brains + love = development
Bowlby32 was right when he said the first 18 months of life are inordinately important to a personâs sense of belonging in this world. At this time, I am constructing my templates of how I expect to be treated, by whom and how I can get my needs met. This is my neural blueprint for relationships for the rest of my life.
If my parents spend time getting to know me and my foibles,33 a remarkable thing happens â my gelatinous being becomes synchronised with theirs.34 Our brains communicate, and their affection shapes the fundamental development of the rest of my nervous system. Brain role models help me understand my emotions and bring peace to my networks. One particularly important âroomâ I develop only after I am out of the womb is just for understanding people and emotions.35 Given that this is the basis of empathy, it makes sense that I canât develop this on my own.36 I sometimes think about what it would be like if I was born without toys, days out, people talking to me, enough milk and love...