The world-renowned neuroscientist Christof Koch, spent nearly two decades working alongside the co-discoverer of the DNA molecule, Francis Crick. Their mission was to find the neurobiological basis of consciousness. They discovered many insights into cognition and the functioning of perception, yet the central enigma, the nature of consciousness itself, remained mysteriously elusive.
In 2009, Koch shocked the scientific community by publishing his conviction that consciousness probably isn’t just in brains, but is a fundamental feature of reality. This is a view known to philosophers as ‘panpsychism.’ The theory Koch is now dedicating his research to is called ‘Integrated Information Theory’ or ‘IIT.’ It is the brainchild of neuroscientist Giulio Tononi of the University of Wisconsin-Madison.
In explaining his theory, Tononi asks us to consider a simple light sensitive photo diode like those found in a digital camera. A simple diode might respond to just two states: light or dark. We could present our diode with any number of images, yet regardless of the picture, the diode conforms to one of only two possible states. Is it light, or is it dark?
Now consider yourself looking at the same picture, lets say, of the Eiffel Tower on a beautiful spring day in Paris. For us, looking at this image results in a reduction from a near infinity of possible states. Not an image of the Andromeda galaxy, not a childhood picture of your mother, not cells dividing in a Petri dish and so on. Because of the vast number of images we are capable of recognizing, each one is highly informative. For Tononi, the vast amount of information capable of being integrated in the brain means that we have a comparatively huge capacity for consciousness.
Tononi’s theory, that consciousness is born out of networks with high integrated information, has novel ways of being tested in the laboratory.
In studies with sleeping participants, Tononi and his colleagues used transcranial magnetic stimulation to send a ripple of activity through the cortex of sleeping participants. The researchers found that when dreaming, this ripple reverberated through the cortex longer than when participants were in stages of dreamless sleep. This demonstrated that during dreaming, when the brain is conscious, the cortex has a higher degree of integration.
In another experiment, the researchers built tiny robots known as ‘animats’ that were placed into mazes. The animats used simple integrated networks capable of evolving over sequential generations. To their surprise, the greater the degree of integration that the animats evolved, the quicker they were able to escape the mazes. For Tononi this finding suggested that consciousness may play a more central role in evolution than had previously been thought.
The mathematical value of integrated information in a network is known as phi. But Tononi’s theory, now the topic of serious mainstream discussion, has an extraordinary implication. Phi didn’t just occur in brains, -it is a property of any network with a total informational content greater than its individual parts. Every living cell, every electronic circuit, even a proton consisting of just three elementary particles have a value of phi greater than zero. According to Integrated Information Theory, all of these things possess something, albeit but a glimmer of ‘what it is like’ to be them. Tononi states:
“Consciousness is a fundamental property, like mass or charge. Wherever there is an entity with multiple states, there is some consciousness. You need a special structure to get a lot of it but consciousness is everywhere, it is a fundamental property.”
Integrated information theory is in its infancy and there are still many questions it must face. Did the information of brains operate at the level of the neuron, or the protein, or something deeper still? The electromagnetic field of the brain, as observed by psi researcher Dean Radin, is always re-establishing its quantum connection to the entire universe. Could a much richer informational interaction exist than has yet been imagined?
Physicists such as John Wheeler have laid the groundwork for a radical new understanding of reality, in which matter, the laws and constants of nature, and indeed the entire universe is best described, not in terms of physical objects, but through the play and display of a fundamental dynamic information.
Quantum mechanics suggests that at the deepest level of nature, the entire physical universe is interconnected. Might the total information of the universe be integrated in some deep sense? Is it in a mysterious way conscious of itself?
As spiritual traditions throughout the ages have long asserted, instead of isolated and separate experiencing beings, we may experience on behalf of the greater evolving system in which we find ourselves.
In Koch’s highly anticipated 2012 book, ‘Consciousness – Confessions of a Romantic Reductionist’, he states:
“I do believe that the laws of physics overwhelmingly favored the emergence of consciousness. The universe is a work in progress. Such a belief evokes jeremiads from many biologists and philosophers but the evidence from cosmology, biology and history is compelling.”
Regardless of the validity of Tononi’s theory, today increasing numbers of scientists and academics are convinced that the existence of consciousness simply cannot be sensibly denied. The study of fundamental consciousness is now entering the mainstream. This movement consists of thinkers in and outside of the mind sciences. Yet despite their different academic backgrounds, they are united by two common convictions: that consciousness is an intrinsic rather than incidental emergence in the universe, and that any complete account of reality must include an explanation of it.
Koch, C. (2009, August 18). A complex theory of consciousness: Is complexity the secret to sentience, to a panpsychic view of consciousness? Scientific American.
Tononi, G. (2008). Consciousness as integrated information: A provisional manifesto. Biological Bulletin, 215(3), 216-242.
Edlund, J. A., Chaumont, N., Hintze, A., Koch C., Tononi G., & Adami, C. (2011). Integrated information increases with fitness in the evolution of animats. PLoS Computational Biology, 7(10).
Radin, D. I. (2006). Entangled Minds: Extrasensory experiences in quantum reality. New York: Simon & Schuster.
Koch, C. (2012). Consciousness: Confessions of a Romantic Reductionist. MIT Press Books.
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