How the prefrontal cortex has come to dominate human consciousness
Tuesday, October 20, 2009
The Rise of Dualism
In some earlier posts, I’ve looked back into prehistory to see how the pfc’s influence within human consciousness gradually began to increase through the development of language, agriculture and writing. Writing, in particular, as a particularly powerful form of what Merlin Donald calls “external symbolic storage”[1], began to create a force external to the individual human brain but one that was increasingly influential in directing the development of those brains: what I call an “external pfc”.
But it was in the world of ancient Greece in the 4th century BCE that the external pfc began to take a bizarre, new form that has remained with us ever since.
It didn’t happen at the outset of Greek classical civilization. As classical historian Kitto describes it:
The sharp distinction which the Christian and the Oriental world has normally drawn between the body and the soul, the physical and the spiritual, was foreign to the Greek – at least until the time of Socrates and Plato.
For a couple of hundred years during what’s known as the Attic Period of classical Greece (around 600-400 BCE), speculative philosophers began to think in new ways about the world around them. But their speculations, unique as they were in world history, still rose from a shared shamanistic and animistic background from which other early cultures took their own traditions. There are elements in the ever-changing cosmos of Heraclitus that can be found in early Buddhist thought, and the expansion and contraction of Empedocles’ cosmos finds echoes in Chinese theories of yin and yang.[2]
However, with the works of Plato in the early 4th century BCE, something truly astounding occurred: Plato’s cosmology constructed the world in the image of the pfc’s capability for abstraction. Plato devised a strange new dualism dividing body from soul, with the immortal soul linked inextricably with universality and abstraction – the hallmark of the pfc’s unique form of conceptual thought.
Plato’s ideas have been so influential in Western thought that the European philosophical tradition has been famously described as “a series of footnotes to Plato”.[3] The fundamental element of Plato’s philosophy was a division between an abstract world of Ideas and the ever-changing, material world in which we live. In Plato’s view, there are countless chairs in this world, but there is only one Idea of a chair, existing in an immutable dimension, of which every material chair is an imperfect replica. The same is true for concepts such as Beauty or Goodness. And the way in which we humans can try to make contact with this immutable, perfect world of Ideas is through our faculty of reason, the purest aspect of our mind.[4]
The ideal universe, in Plato’s conception, was a mathematical, geometric abstraction, and only through applying one’s mind to these abstractions could we ever understand it. Above the entrance of Plato’s Academy were the words: “Let no-one enter here who does not know geometry.”
And for Plato, humans were constructed just like the rest of the universe, with an ideal and a material dimension. The material aspect was our body. The ideal part, containing our immortal soul, was the mind. And not the whole mind. Not the part that feels or thinks about what to do next. The part of the mind that comprehends the ideal rather than the material, that lives in the world of abstraction.
This part of the mind is one of the defining characteristics of the pfc. Plato had separated the pfc’s capability for abstraction from all other aspects of our human consciousness and called it immortal. In the words of the great Greek scholar Francis Cornford: “The world of the body is a prison, or a tomb; that other world of the soul and of Ideas is the realm of true life and reality, in which all worth resides… the intellect had become a deity.”[5]
Plato had carried out a radical reconstruction of the cosmos that has affected Western views of our external world and our internal nature ever since. Initially, his dualistic construct led to the Neoplatonic tradition, identified with thinkers such as Philo (20 BCE – 50 CE) and Plotinus (ca. 204-270), who took Plato’s dualistic split of body and soul to even greater excesses.
For Philo, “’there are no two things so utterly opposed as knowledge and pleasure of the flesh.’ The great impediment to the good is ‘passions pricking and wounding the soul’”.[6] Plotinus, meanwhile, “could hardly bear the thought that his soul was trapped in so base a thing as his body, which he sometimes called a ‘detestable vessel’, one which acted as an obstacle to spiritual development. He insisted that ‘to rise up to very truth is altogether to depart from bodies. Corporeality is contrary to soul and essentially opposed to soul’”.[7]
Most importantly, Plato’s body/soul dualism was picked up by the early fathers of Christianity, and became deeply embedded in the fundamental forms of thought we’ve all inherited. Perhaps most of us “no longer ‘think the soul’, we no longer argue about it,” states French philosopher François Jullien, “but we inevitably… still think along the lines it laid down long ago. It belongs to an older, ‘archaeological’ stratum of our mental landscape, and acts as a controlling idea that defines our epistemic axioms.”[8]
And this elevation of the pfc’s capacity for abstraction to an eternal status separate from the changing, feeling world of our bodies, has had profound implications for our view of ourselves. In the words of philosopher Chad Hansen:
Ancient Greek humanism took the … road of elevating humans out of nature into the intellectual realm. It placed us in a hybrid tension between the physical world of common sense and experience and an intellectual, rational world of meaning, knowledge, and value. We are neither of this world nor free from it (until we die). The identification of human worth with the impulse to transcendence has a flip side, since we accordingly devalue the physical, the material.
To be free is for our reasoning faculty to control us. We detach ourselves from mere bodily, physical determination…
In my next post, I’ll look more closely at how – in the form of monotheism - the pfc performed the coup which gave it nearly unfettered power over our consciousness.
[1] Donald, M. (1991). Origins of the Modern Mind: Three Stages in the Evolution of Culture and Cognition, Cambridge, Mass.: Harvard University Press.
[2] Marlow, A. N. (1954). "Hinduism and Buddhism in Greek Philosophy." Philosophy East and West, 4(1:April 1954), 35-45.
[3] Whitehead, A.N., (1979) Process and Reality, Free Press.
[4] Vlastos, G. (1975/2005). Plato's Universe, Canada: Parmenides Publishing
[5]Cornford, F.M., (1912/2004). From Religion to Philosophy: A Study in the Origins of Western Speculation. New York: Dover Publications.
[6] Wright, R. (2009). The Evolution of God, New York: Hachette Book Group.
[7] Pollard, J., and Reid, H. (2006). The Rise and Fall of Alexandria, New York: Viking Penguin.
[8] Jullien, F. (2007). Vital Nourishment: Departing from Happiness, New York: Zone Books.
I’m a first-time novelist, who was once an Internet entrepreneur. I’m currently in the middle of a multi-year research project for a book that will probably be called Finding the Li: Towards a Democracy of Consciousness. It’s about how human consciousness has lost its balance in the past two thousand years, and how we can go about regaining a harmony within ourselves.
I was born in London, England, studied English Literature at Cambridge , and left England in 1981 to move to the United States.
My first novel was Requiem of the Human Soul, published in 2009. I wanted to write about where I saw our world going, and what it means for our human soul. Not the Judaeo-Christian immortal soul, but the kind we mean when we say: "That's got soul, man." How genetic engineering may put the final nail in the coffin that Western civilization's been building around our soul for the past 500 years.
I tried to make the story believable - not some angst-ridden dystopia, but a realistic view of our future may hold for our species.
My first novel, Requiem of the Human Soul, was published in 2009.One of the characters in the novel, Dr. Julius Schumacher, had a theory he called "the tyranny of the prefrontal cortex (pfc)".He saw the history of humanity as a story of the ever-increasing power of the pfc over other aspects of our consciousness: from language to agriculture, monotheism to science, and finally to human genetic engineering.
As I finished the novel, I became entranced (some might say obsessed) by this notion of the tyranny of the prefrontal cortex.Was it really a valid thesis?What did it mean for where the human race was going, and who we were as human beings?I started researching this idea, going wherever the literature took me.And it took me to some unexpected places: the evolution of language; the split in conceptualizations of the cosmos between Chinese and Western cultures; the all-encompassing power of dualism in Western thought; current theories of self-organization and how they relate to traditional Chinese and Buddhist thought; the neural correlates of consciousness.The list seems to go on forever.
I’ve currently entering my fourth year of research on this topic.With over 1,000 pages of dense notes and 650 references, I’m still not close to finishing.My plan is to write a book (non-fiction this time) tracing the rise of the pfc’s dominance in human consciousness.And more importantly, what are its implications, and what we can do about it.
The implications are enormous.In my view, this dynamic is responsible for the massive global imbalances we deal with everyday in the news, culminating in global climate change and the destruction of our environment.External global imbalances, I believe, are ultimately reflections of internal imbalances within our consciousness.So, in the end, the only way we’ll truly get our relationship with our world back in balance is to get our individual consciousness back in harmony.And that means identifying and ending the “tyranny of the pfc”, and developing what I call a “democracy of consciousness.”
These ideas have begun bursting inside me.I began to realize I couldn’t wait years to publish my thoughts (although I still intend to do that).So, in the meantime, I decided to start writing this blog, Tyranny of the Prefrontal Cortex, along with a sister blog, Finding the Li.You might think of this blog as primarily diagnostic, describing what’s gone wrong in our consciousness, and the sister blog, Finding the Li, as leading towards solutions.
I hope that these blogs can be interactive, and that people will engage in meaningful dialogue on the ideas.I look forward to all comments, both supportive and critical (as long as they’re constructive criticisms!)I hope some people find some ideas here worthy of further thought.Happy reading!
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