Cosmological Foundations of
Consciousness
An Overview
Chris King
Emeritus, Mathematics,
University of Auckland
http://www.math.auckland.ac.nz/~king/
2 Feb 2011
Abstract: This paper
explores the cosmological foundations of subjective consciousness in the
biological brain, from cosmic-symmetry-breaking, through biogenesis,
evolutionary diversification and the emergence of metazoa, to humans,
presenting a new evolutionary perspective on the potentialities of quantum
interactions in consciousness, and the ultimate relationship of consciousness
with cosmology.
Fig 1: Cosmic symmetry-breaking
and its interactive fractal and chaotic effects leading to biogenesis. (a) Life
is the consummation of interactive complexity (Σ) resulting from
symmetry-breaking of the fundamental force of nature in the big-bang (α), whatever ultimate fate is in
store (Ω). Inset (i) fractal
inflation model, (ii) the distribution of dark energy and matter and the matter
of stars and planets. (b) Logarithmic time scale of cosmological events showing
life on earth existing for a third of the universeÕs lifetime. (c)
Symmetry-breaking of the forces of nature results in the color and weak forces,
generating 100 atomic nuclei, while gravity and electromagnetism govern
long-range structure determining biogenesis, from fractal chemical bonding, to
solar systems capable of photosynthetic life in the goldilocks zone of liquid
water. (d) Interactive effects of cosmic symmetry-breaking lead to hierarchical
interaction of the forces, generating hadrons, atomic nuclei and molecules (i).
Non-linear energetics of chemical bonding lead to a cascade of cooperative
weak-bonding effects, which generate fractal molecular complexity, from the
molecular orbitals of simple molecules (ii), through the 3D structures of
complex proteins and nucleic acids (iii) to supra-molecular cell organelles
(iv), cells (v), and tissues (vi) and organisms. (e) Chaotic effects of gravity
as a non-linear force, results in extreme planetary variation, generating a
diversity of potential conditions for biogenesis, similar to dynamic variations
surrounding the Mandelbrot set.
1:
Introduction: Scope and Design
This
overview explores the cosmological foundations of consciousness as evidenced in
current research and uses this evidence to present a radical view of what
subjective consciousness is, how it evolved, and how it might be supported
through quantum processes in the biological brain.
To do full justice to this very broad topic within the confines of the special issue and its planned book edition, I have prepared this paper as a short review article, referring to the full research monograph (King 2011b), as supporting online material, containing all the detailed references, a more complete explanation of the ideas and the ongoing state of the research in the diverse areas covered.
2:
Non-linear Quantum and Cosmological Foundations of Biogenesis
While
it is well understood that the fundamental forces of nature appear to have differentiated
from a super-force in a founding phase of cosmic inflation, the interactive
implications of cosmic symmetry-breaking for the chemical basis of life and its
evolution into complex sentient organisms are equally as striking, and central
to our existence. Cosmic symmetry-breaking and the ensuing preponderance of
matter over anti-matter results in the hierarchical arrangement of quarks into
neutrons and positively charged protons and then the 100 or so stable atomic
nuclei, through the interaction of the strong and weak nuclear forces with
electromagnetic charge, providing a rich array of stable, electromagnetically
polarized, atoms with graduated energetics.
The
non-linear molecular orbital charge energetics that results in strong covalent
and ionic bonds also leads to a cascade of successively weaker bonding effects
from H-bonds, to van-der-WaalÕs interactions, whose globally cooperative nature
is responsible for the primary, secondary, and tertiary structures of proteins
and nucleic acids, and in a fractal manner to quaternary supra-molecular
assemblies, cell organelles, cells, tissues and organisms. Thus, although
genetic coding is a necessary condition for the development of cell organelles
and organismic tissues, this is possible only because the symmetry-broken laws
of nature can give rise to such dynamical structures. In this sense, tissue,
culminating in the sentient brain, is the natural interactive full-complexity
product of cosmic symmetry-breaking.
Despite
the periodic quantum properties of the s, p, d and f-orbitals, which form
the basis of the table of the elements, successive rows have non-periodic
trends because of non-linear charge interactions, which result in a
symmetry-breaking determining the bioelements pivotal to biogenesis. Life as we
know it is based on the strong covalent bonding of first row elements C, N and
O in relation to H, stemming from the optimally strong multiple -CN, -CC-, and
>CO bonds, which are cosmically abundant in forming star systems and readily
undergo polymerization to heterocyclic molecules, including the nucleic acid
bases A, U, G, C and a variety of amino acids, as well as optically active
cofactors such as porphyrins.
Fig2: (a) Symmetry-breaking
quasi-periodic table of the bioelements displays covalent optimality. (b)
Optimality of H20 in terms of internal weak-bonding expressed in its
high boiling point. (c) Evidence for a symmetry-breaking origin of the genetic
code. (d) Realized and proposed direct synthesis paths from primordial
precursors such as HCN to nucleotides (Powner et. al. (2010).
This
interactive symmetry-breaking continues in a cascade. As we trend from C > N
> O the electronegativity increases from non-polar C-H, to highly
electronegative O, resulting in H2O having extreme optimal properties
as a polar hydride, bifurcating molecular dynamics into polar and non-polar
phases, in addition to pH, and H-bonding effects, which define the aqueous
structures and dynamics of proteins, nucleic acids, lipid membranes, ion and
electron transport. Following on are secondary properties of S in lower energy
-SH and -SS- bonds and the role of P as oligomeric phosphates in the energetics
of biogenesis, cellular metabolism, dehydration polymerization and the nucleic
acid backbone. We then have bifurcations of ionic properties K+/Na+ and Ca++/Mg++
and finally the catalytic roles of transition elements as trace ingredients.
This
does not imply that this is the only elemental arrangement possible for life,
as organisms adapted to use arsenic in the place of phosphorus (Wolfe-Simon et.
al. 2010) demonstrate, but it does confirm that life as we know it has optimal
symmetry-breaking properties cosmologically. Many of the fundamental molecules associated with membrane
excitation, including lipids such as phosphatidyl choline and amine-based
neurotransmitters, also have potentially primordial status (King 1996). Effects
of symmetry-breaking may also extend to the genetic code (King 1982).
Recent
research has begun to elucidate a plausible Ôone-potÕ route (Powner et. al.
2010) from simple cosmically abundant molecules such as HCN and HCHO to the
nucleotide units making up RNA, giving our genetic origin a potentially
cosmological status. There have also been advances with inducing selected RNAs
to self-assemble from precursors and assume catalytic functions (see King
2011b).
Fig 3: (a) Catalytic
nicotine-adenine dinucleotide is essential in respiration. (b) Large and small
subunits of the ribosome are centrally and functionally RNA [pink] (c)
Molecular fossil evidence for a viral-based cellular transition from the RNA
world to DNA based chromosomes, through cellular cooption of viral RNA-directed
RNA-polymerase, followed by reverse transcriptase and finally DNA-dependent
DNA-polymerase. (d) Independent evolution of archaeal and bacterial cellular
life from a non-cellular form of life at the interface of olivine and acid,
iron-rich sea water forming Ôlost cityÕ undersea vents able to solve the
concentration and encapsulation problems (Martin and Russell 2003).
3:
Emergence of the Excitable Cell: From Universal Common Ancestor to Eucaryotes
Looking
back at the universal common ancestor of life, likewise indicates a transition
through an era in which RNA functioned as both catalyst and replicator, through
the establishment of the genetic code, whose ribosomal protein translation
units are still RNA-based, to the eventual emergence of DNA-based life,
probably through viral genes (King 2011a). However the genetic picture of cell wall proteins is
consistent with independent cellular origins of bacteria and archaea, implying
more than one evolution of cellular life from a protected environment conducive
to naked nucleotide replication (Martin and Russell 2003).
Nevertheless,
once the branches of cellular life evolved, excitability based on ion channels
and pumps rapidly became universal. It has recently been discovered that as
early as 3.3 billion years ago there was a massive genetic expansion, which
gave rise to the genes common to all forms of life (David and Alm 2010)
facilitated by high levels of horizontal gene transfer, promoted by viruses (Dagan
et. al. 2006).
Estimates of the adaptive
computational power of the collective bacterial and archaeal genome (King
2011a) give a presentation rate of new combinations of up to 1030
bits per second, compared with the current fastest computer at about 1017
bit ops per second. Corresponding rates for complex life forms are much lower,
around 1017 per second, because they are fewer in total number and
have lower reproduction rates and longer generation times. This picture of bit
rates coincides closely with the Archaean expansion scenario and suggests that
evolution has been a two-phase process of genetic algorithm super-computation,
which arrived at a global solution to the notoriously intractable
protein-folding problems of the central metabolic and electro-chemical
pathways, which are later capitalized on by eukaryotes and metazoa.
Fig 4: (Left) Archaean
genetic expansion around 3.3 billion years ago generated most critical genes
common to life (David and Alm 2010) (Right) Evidence of ubiquitous horizontal
transfer of genes between bacterial species at different trigger levels (Dagan
et. al. 2006).
Horizontal transfer,
endosymbiosis and gene fusion led to a situation where sexuality and
excitability, along with all the critical components for neural dynamics
including ion-channels specific for Ca++, K+ and Na+,
G-protein linked receptors, microtubules, and fast action potential became
common to the spread of eucaryote cell types, from giardia and paramecium to
metazoa. Ion channel structure appears to have been established during the soup
of lateral gene transfers that drove bacterial evolution, with all major
classes arising before the metazoa, with several showing homology to bacterial
versions. This means we can find neurotransmitter receptors from GABA a, b, and
glutamate, through opioid, to dopamine, epinephrine, serotonin and melatonin in
single-celled eukaryotes. This universality continues up the evolutionary tree,
so that chemicals psychoactive in humans also affect the web building of spiders,
implying that the very different nervous system designs of arthropods and
vertebrates mask a deeper common neurodynamic basis.
The evolutionary key to sentient consciousness lies in the survival advantage it could provide in anticipating existential threats and strategic opportunities. Since key genes for neurophysiology evolved up to six times as long ago as the Cambrian radiation, the key to the emergence of conscious sentience may be sourced in the evolution of excitable single cells. Chaotic excitation provides a eucaryote cell with a generalized quantum sense organ. Sensitive dependence would give a cell feedback about its external environment, perturbed by a variety of quantum modes - chemically through molecular orbital interaction, electromagnetically through photon emission and absorption, electrochemically through the perturbations of the fluctuating fields generated by the excitations, and through acoustic, mechanical and osmotic interaction.
Â
Fig 5: Real-time purposive
behavior in single cells (a) Paramecium reverses, turns right and
explores a cul-de-sac. (b) Human neutrophil chases an escaping bacterium
(black), before engulfing it. (c) Chaos chaos engulfs a paramecium. Action potentials in
Chaos chaos (d) and paramecium (e). Period 3 perturbed excitations in alga Nitella indicate chaos. (g)
Frog retinal rod cells are sensitive to single quanta in an ultra-low intensity
beam.
As we move to founding metazoa,
we find Hydra, which supports only a primitive diffuse neural net, in
continuous transformation and reconstruction, has a rich repertoire of up to 12
forms of ÔintuitiveÕ locomotion from snail-like sliding to somersaulting (King
2008), as well as coordinated tentacle movements. This is consistent with much
of the adaptive capacity of nervous systems arising from cellular complexity,
rather than neural net design alone. Pyramidal neurons for example engage up to
104 synaptic junctions, having a diversity of excitatory and
inhibitory synaptic inputs involving up to five types of neurotransmitter, with
differing effects depending on receptor types, and their location on dendrites,
cell body, or axons.
In the complex central nervous
systems of vertebrates, we see the same dynamical features, now expressed in
whole system excitations, such as the EEG, in which interacting excitatory and
inhibitory neurons provide a basis for broad-spectrum oscillation, phase
coherence and chaos in the global dynamics, with the synaptic organization
enabling the dynamics to resolve complex context-sensitive decision-making
problems. Nevertheless the
immediate decision-making situations around which life or death results, in the
theatre of conscious attention are qualitatively similar to those made by
single celled organisms, based strongly on sensory input, and short term
anticipation of immediate existential threats and opportunities, in a context
of remembered situations that bear upon the current experience.
Fig 6: Structural overview of the
brain as a dynamical organ. (a) Major anatomical features including the
cerebral cortex, its underlying driving centres in the thalamus, and
surrounding limbic regions involving emotion and memory, including the cingulate cortex, hippocampus and amygdala. (b) Conscious
activity of the cortex is maintained through the activity of ascending pathways
from the thalamus and brain stem, including the reticular activating system and
serotonin and nor-adrenaline pathways involved in light and dreaming sleep. Processes
which enable global dynamics to be affected by small perturbations. (c)
Evidence for dynamical chaos includes modulated strange attractors (Freeman
1991), and broad spectrum excitations with moderate fractal (correlation)
dimensions (Basar et. al. 1989). These dynamics are complemented by holographic
processing across the cortex illustrated in an experimental representation of
olfactory excitations corresponding to recognized odors (Skarda and Freeman
1987). (d) Stochastic resonance enables fractal instabilities to grow from ion
channel to neuron to hippocampal excitation (Liljenstršm and Uno 2005). (e)
Chandelier cells can facilitate an spreading of excitation to many pyramidal
cells (Molnar et. al. 2008, Woodruff and Yuste 2008). (f) Wave front coherence
in processing becomes manifest when a cue is recognized by the subject (left)
(g) Correlation matrix and dendrogram of cortical slice is consistent with
fractal self-organized criticality (Beggs and Plenz 2004).
4:
A Dynamical View of the Conscious Brain
Although long distance axons
involve pulse coded action potentials, the brain appears to utilize dynamic
processing involving broad-spectrum oscillations, rather than discrete signals.
Unlike the digital computer, the human brain is a massively parallel organ with
only the order of 10 synapses between input and output, despite having some 1010
neurons and 1014 synapses. Such design is essential to enable quick reactions to complex stimuli in real time and avoid the intractability problem of serial computers, which neural nets and genetic algorithms do solve effectively.
The cerebral cortex consists of
six layers of cells organized in a sheet of functional columns about 1mm
square. These have a fractal modular architecture, with each column
representing one aspect of experience, from primary processing of lines at
given angles, color, motion and auditory tones, through to cells recognizing
individual faces. Major areas of
the cortex also follow a modular pattern centered on the primary senses and our
coordinated motor responses to our ongoing situation. Frontal areas are
involved in abstractions of motor events, strategic planning and execution,
parietal areas between touch and visual cortices are involved in spatial
abstractions, with the temporal lobes extending laterally beyond visual and
auditory areas representing attributes with specific meaning, such as specific
faces and complex melodies, semantic and symbolic process, such as language,
and the temporal relationships between experiences. This is consistent with a
ÔholographicÕ model – each experience being represented collectively,
like a Fourier transform, in terms of its attributes – consistently with
the many-to-many connections neurons provide.
No single cortical area has been
identified as the seat of consciousness. The most successful proposal (Ananthaswamy
2009, 2010) is that conscious processes correspond to the coordinated activity
of the whole brain engaging active communication in Ôworking memoryÕ between
the frontal cortex and major sensory and association areas, while activity
confined to regional processing is subconscious. This tallies with Bernard
BaarsÕ (1997) model of the Cartesian theatre of consciousness as Ôglobal
workspaceÕ.
While major input and output
pathways pass through thalamic nuclei underlying the cortex, two other systems
modulate the dynamics of brain activity. The cortex is energized by ascending
pathways from the brain stem, involving the reticular activating system, and
dopamine, nor-adrenalin and serotonin pathways, fanning out across wide areas
of the cortex, modulating active wakefulness, dreaming and sleep. Our emotional
experiences are modulated through the limbic system, a lateral circuit, which
passes through the hypothalamus regulating internal and hormonal processes, the
cingulate cortex dealing with emotional representations, and the hippocampus
and amygdala, setting down sequential memories and dealing with flight and
fight survival.
There is also evidence active
conscious processing corresponds to (30-80 Hz) EEG oscillations in the gamma
band, driven by mutual feedback between excitatory and inhibitory neurons in
the cortex, and that phase coherence distinguishes Ôin-synchÕ neuronal
assemblies forming conscious thought process from peripheral pre-processing
(Basar et. al. 1989, Crick & Koch 1992).
While the brain may be 'holographic' spatially, it appears to use phases of dynamical chaos in the time domain. Modulated transitions at the edge of chaos can explain many phenomena, from perception to insight learning in a 'eureka' brain wave. In olfactory perception, the brain appears to enter high energy chaos, which frees the dynamic from getting inappropriately locked-in, as annealing does in formal networks, fully-exploring dynamical space, followed by a reduction of energy, causing the dynamic to fall, either into a recognized state, represented by a strange attractor, or to form a new attractor through an adaptive change in the potential energy landscape, through learning (Skarda and Freeman 1987). The same idea fits with the 'eureka' of insight, where an unstable dynamic generated by the problem is resolved in a single bifurcation from chaotic instability into lucidity.
Non-linear mode-locking, common
to oscillating chaotic systems, has the potential to facilitate the coherent
excitations that characterize coupled neurosystems, going a good way towards
resolving the ÔbindingÕ problem – how the brain Ôbrings it all back
togetherÕ. By modulating the coupling between oscillating neurosystems,
mode-locking could selectively bring related systems into phase coherence, just
as the heartbeat is mode-locked to its local and brain pacemakers.
Chaos also makes the brain state
arbitrarily sensitive to small perturbations, which is essential for a
dynamical brain to be sensitive to small changes in its environment, and to its
local instabilities. If the global state is critically poised at a tipping
point, an unstable chaotic dynamic could become sensitive to perturbations at
the level of the cell, synapse, or ion channel. There are several additional
ways in which such sensitivity could come about. Stochastic resonance has been
demonstrated to facilitate sensitivity, from ion channel, to cell, to global
dynamic (Liljenstršm and Uno 2005). Fractal self-organized criticality has been
found in cortical slices (Beggs and Plenz 2004). Chandelier cells have been
shown to facilitate lateral spreading of local excitations to multiple pyramidal
cells (Molnar et. al. 2008, Woodruff and Yuste 2008).
Fig 7: Features of quantum
processing in proposed models. (a) Microtubule MAP proteins as envisaged in the
OOR model (Hameroff and Penrose 2003). (b) The ensuing relationship between
classical and quantum computing and consciousness. (c, d) gated K+
ion channels from MacKinnonÕs group (Zhou et. al. 2001). (e) Fractal kinetics
in the channels (Liebovitch et. al.) (f) Synaptic junction may invoke
uncertainty of position of the vesicle.
5: Quantum Dynamics and
Conscious Anticipation
The two key questions
confounding science about the brain are (1) how and why brain function
generates subjective experience, and (2) whether there is any basis for our
subjective conscious intentions having physical consequences in Ôfree-willÕ.
We thus explore how central to
neurodynamic processes might exploit quantum effects to enhance survival
prospects of the organism. To develop a realistic quantum theory of
consciousness, we have to consider how whole brain states might become capable
of quantum interaction and how this could arise from neurophysiological
processes common to excitable cells.
We have seen that various forms
of global instability, from chaos, through tipping points to self-organized
criticality could make the global brain state ultimately sensitive to change at
the cellular, molecular or quantum level. Ion channels, such as for
acetyl-choline display non-linear (quadratic) concentration dynamics, being
excited by two molecules. Many aspects of synaptic release are also highly
non-linear, due to biochemical feedback loops. A single vesicle excites up to
2000 ion channels, providing extreme amplification of a potentially quantum
event. In addition to being candidates for quantum coherence, voltage gated ion
channels display fractal kinetics (Liebovitch 1987).
How interacting systems respond
to the quantum suppression of chaos, in processes such as scarring of the wave function
(Gutzwiller 1992), received clarification (Chaudhury et. al. 2009, Steck 2009),
when it was discovered that an electron in an orbit around a Cs atom in a
classically chaotic regime enters into entanglement with nuclear spin. This
illustrates how the chaotic ÔbilliardsÕ of molecular kinetics, and chaotic
membrane excitation, might become entangled with other states at the quantum
level. One characteristic of time-dependent quantum 'chaos' is transient chaotic behavior ending up in a periodic orbital scar as wave spreading occurs. This would suggest that chaotic sensitivity, with an increasing dominance by quantum uncertainty over time, would contribute to which entanglements ultimately occur in a given kinetic encounter.
The evolutionary argument is a
potent discriminator of models of consciousness. Quantum attributes making
subjective consciousness possible need to evolve in confluence with essential
physiological processes potentially dating back to the epoch when the central
components of modulated excitability evolved. Many theories of consciousness have been devised invoking quantum
processes which emphasize unusual interpretations of physics, esoteric forms of
quantum computation invoking properties extraneous to the known physiological
functions of biological organelles, or hypothetical fields in addition to known
physiology, raising questions as to whether they pass the evolutionary test.
One of the most famous is Hameroff and PenroseÕs (2003) OOR theory combining
objective reduction of the wave function with hypothetical forms of quantum
computing on microtubules, which might be extended between cells through gap
junctions. These are extensively discussed in the supporting online material,
(King 2011b).
One idea fitting
closely with neurophysiology is BernroiderÕs (2003, 2005) proposal that quantum
coherence may be sustained in ion channels long enough to be relevant for
neural processes and that the channels could be entangled with surrounding
lipids and proteins and with other channels in the same membrane. He suggests
that the ion channel functions through quantum coherence. MacKinnonÕs group
(Zhou et. al. 2001) have shown that the K+-specific ion channel
filter works by holding two K+ ions bound to water structures
induced by protein side chains. These have similarities to models of quantum
computing using ion traps. The solitonic nature of action potentials could
provide such entangled connectivity between channels.
Fig 8: Wheeler delayed choice
experiment (1) shows that a decision can be made after a photon from a distant
quasar has traversed a gravitationally lensing galaxy by deciding whether to
detect which way the photon traveled or to demonstrate it went both ways by
sampling interference. The final state at the absorber thus appears to be able
to determine past history of the photon. Quantum erasure (2) likewise enables a
distinction already made, which would prevent interference, to be undone after
the photon is released. Feynman diagrams (3) show similar time-reversible
behavior. In particular time reversed electron scattering (d) is identical to
positron creation-annihilation. (4a) In the transactional interpretation
(Cramer 1983), a single photon exchanged between emitter and absorber is formed
by constructive interference between a retarded offer wave (solid) and an
advanced confirmation wave (dotted). (b) Experiments of quantum entanglement
involving pair-splitting are resolved by combined offer and confirmation waves,
because confirmation waves intersect at the emission point. Contingent
absorbers of an emitter in a single passage of a photon (c). Collapse of contingent
emitters and absorbers in a transactional match-making (d). (5) Scarring of the
wave function of the quantum stadium along repelling orbits (Gutzwiller 1992).
(6) Generation of quantum entanglement by quantum chaos in the quantum kicked
top (Chaudhury et. al. 2009, Steck 2009)..
While decoherence theories and
objective reduction do not provide an active role for will, several
physicists have suggested consciousness could play a part in the way the wave
function representing a superposition of states, collapses to one real instance
of the particle. Quantum theory predicts SchrodingerÕs cat subjected to cyanide
if a radioactive scintillation occurs, is in a shadowy superposition - both
alive and dead. In our conscious experience of the real world, we find the cat
is either alive or dead. This suggests subjective consciousness could play an
intervening role within quantum reality, reducing the superabundance of quantum
probability multiverses to the historical process we experience. If so, consciousness
may have a direct window on the entangled sub-quantum realm. We thus explore a
model of quantum anticipation, which could extend back to single celled
evolution.
Feynman diagrams of quantum
interactions show that the quantum interaction is time-reversible. The Feynman
diagram for electron scattering, when the electron path is time-reversed,
becomes precisely that for positron creation and annihilation. Moreover in real
quantum experiments, such as quantum erasure and the Wheeler delayed-choice experiment,
it is possible to change how an intervening wave-particle behaves by making
different measurements after the wave-particle has passed through the
ÔapparatusÕ. All forms of quantum entanglement possess this time-symmetric
property.
John Cramer (1983) incorporated
time-symmetry into the Ôtransactional interpretationÕ of quantum mechanics, in
which space-time handshaking between the future and past becomes the basis of
each real quantum interaction. The
emitter of a particle sends out an offer wave forwards and backwards in time,
whose energies cancel. The prospective absorbers respond with confirmation
waves, and the real quantum exchange arises from constructive interference
between the retarded component of the chosen emitterÕs offer wave and the advanced,
time-reversing component of the chosen absorberÕs confirmation wave. The
boundary conditions defining the exchange thus involve both past and future
states of the universe. Upon wave function collapse, the exchanged real
particle traveling from the emitter to the absorber is identical with its
negative energy anti-particle traveling backwards in time.
The transactional interpretation
is a heuristic device, which is not essential to the argument, since its
predictions coincide, largely, or exclusively with conventional quantum
mechanics, but it does highlight future boundary conditions, which could play a
part in conscious anticipation. Regardless of the interpretation of quantum
mechanics we use, an exchanged particle has a wave function existing throughout
the space-time interval in which it exists, so any process involving collapse
of a wave function has boundary conditions extending in principle throughout
space-time, involving future prospective absorbers. Advanced entanglement
becomes clear in experiments creating two entangled particles (Aspect 1981),
where subsequent measurement of the polarization of one photon immediately
results in the other having complementary polarization, although neither had a
defined polarization beforehand. The only way this correlation can be
maintained within quantum reality is through a wave function extending back to
the creation event of the pair and forward again in time to the other particle.
If subjective consciousness has
a complementary role to brain function, correlated with coherent, or entangled,
quanta emitted and absorbed by the biological brain, it is then correlated with
a superposition of possible states in the brainÕs future, as well as having
access to memories of the past. In pair-splitting experiments, the boundary
conditions do not permit a classically-causal exploitation. This does not
result in a contradiction here, because the brain state is quantum
indeterminate and the conscious experience corresponding to the entangled
collapse provides an intuitive ÔhunchÕ, not a causal deduction.
A
possible basis for the emergence of subjective consciousness, which could also
be pivotal in explaining the source of free-will, is thus that the excitable
cell gained a fundamental form of anticipation of threats to survival as well
as strategic opportunities, through anticipatory quantum non-locality induced
by chaotic excitation of the cell membrane, in which the cell becomes both an
emitter and absorber of its own excitations. Non-locality in space-time is a
fundamental quantum property shared by all physical systems, including
macroscopic systems with coherent resonance. The coherent global excitations in
the gamma range associated with conscious states, could thus be the ÔexcitonsÕ
in such a quantum model. Unlike quantum computing, which depends on not being
disturbed by decoherence caused by interaction with other quanta. Stringent
requirements avoiding decoherence may not apply to transactions, where real
particle exchange occurs even under scattering.
Quantum
phenomena abound in biological tissues. Entanglement has been observed in
healthy tissues in quantum coherence MRI imaging and bird navigation has been
suggested to use entangled electrons. Excitations in photosynthetic antennae
have also been shown to perform spatial quantum computing. Enzyme activation
energy transition states and synaptic transmission also use quantum tunneling.
By making the organism sensitive to a short envelope of time, extending into the immediate future, as well as the past, subjective consciousness could thus gain an evolutionary advantage, making the organism sensitive to anticipated threats to survival as well as hunting and foraging opportunities. It is these primary needs, guided by the nuances of hunch and familiarity, rather than formal calculations, that the central nervous systems of vertebrates have evolved to successfully handle. Such temporal anticipation need not be of causal efficacy but just provide a small statistical advantage, complemented by computational brain processes associated with learning, which edge-of-chaos wave processing is ideally positioned to do.
These
objectives are shared in precisely the same way by single-celled organisms and
complex nervous systems. Because of the vastly longer evolutionary time since
the Archaean expansion than the Cambrian metazoan radiation and the fact that
all the components of neuronal excitability were already present when the
metazoa emerged, quantum anticipation could have become an evolutionary feature
of single celled eukaryotes, before metazoa evolved.
6: Quantum Sensitivity,
Sensory Transduction and Subjective Experience
Fig 9: Expression of
rhodopsin in the CNS shows both strong selective neuronal activity and a focal
expression in the occipital cortex consistent with function in primary visual
areas (King 2007).
One of the mysteries that
distinguish the richness of subjective conscious experience from the colorless
logic of electrodynamics is that sensory experiences of vision, sound, smell
and touch are richly and qualitatively so different that it is difficult to see
how mere variations in neuronal firing organization can give rise to such
qualitatively different subjective affects. How is it that when dreaming, or in
a psychedelic reverie, we can experience ornate visions, hear entrancing music,
or smell fragrances as rich, real, intense and qualitatively diverse as those
of waking life?
Since the senses are actually
fundamental quantum modes by which biological organisms can interact with the
physical world, this raises the question whether subjective sensory experience
is in some way related to the quantum modes by which the physical senses
communicate with the world.
Clearly our senses are sensitive to the quantum level. Individual frog
rod cells have been shown to respond to individual photons, the quietest sound
involves movements in the inner ear of only the radius of a hydrogen atom and
single molecules are sufficient to excite pheromonal receptors.
Many genes we associate with
peripheral sensory transduction in several senses are also expressed in the
mouse brain (King 2007) at least in the form of RNA transcripts, including
stomatin-like protein 3 associated with touch, epsin, otocadherin and otoferlin
associated with hearing, and several types of opsin, including rhodopsin and
encephalopsin. This suggests the brain could harbour an 'internal sensory system' which might play a role
in generating the 'internal model of reality', although these ideas are
speculative and it is a major challenge to see how such processes could be
activated reversibly in the CNS.
Several researchers (Pocket
2000, McFadden 2002) have proposed that neural excitation is associated with
electromagnetic fields, which might play a formative role in brain dynamics.
Attention has recently been focused on biophotons as a possible basis of
processing in the visual cortex based on quantum releases in mitochondrial
redox reactions (Rahnama et. al. 2010, B—kkon et. al. 2010). Microtubules have
also been implicated (Cifra et. al. 2010).
All excitable cells have ion
channels, which undergo conformation changes associated with voltage, and
orbital or ÔligandÕ-binding, both of internal effectors such as G-proteins and
externally via neurotransmitters, such as acetyl-choline. They also have
osmotic and mechano-receptive activation, as in hearing, and in some species
can be also activated directly and reversibly by photoreception. Conformation changes of ion channels
are capable of exchanging photons, phonons, mechano-osmotic effects and orbital
perturbations, representing a form of quantum synesthesia. Since the brain uses
up to 40% of our metabolic energy for functions with little or no direct energy
output, it is plausible that some of the ÔdissipatedÕ energy could be
generating novel forms of interaction.
7:
Complementarity, Symmetry-breaking, Subjective Consciousness, and Cosmology
This
leads to the most perplexing chasm facing the scientific description of
reality. What is the existential nature of subjective consciousness, from
waking life, through dreaming to psychedelic and mystical experience, and does
it have cosmological status in relation to the physical universe?
Fig 10: Psychedelic and dreaming
states provide conscious experiences as intense and subjectively veridical as
real world sensory experiences, but with very different structure and dynamics
(Andrew Ostin http://psion005.deviantart.com/,
Memory of the Future Oscar Dominguez 1939)
The
key entities forming the physical universe manifest as symmetry-broken
complementarities. Quanta are wave-particles, with complementary discrete
particle and continuous wave aspects. The fundamental forces are symmetry
broken in a manner that results in complementary force-radiation bearing bosons
and matter forming fermions. In the standard model these have symmetry broken
properties, with differing collections of particles. Supersymmetry proposes
each boson has a fermion partner to balance their positive and negative energy
contributions, but E8Õs 112 ÔbosonicÕ and 128 ÔfermionicÕ root vectors, suggest
symmetry-breaking could be fundamental (Fielder and King 2010).
Further
symmetry-broken complementarities apply to the biological world, where the
dyadic sexes of complex organisms and many eukaryotes are both complementary
and symmetry broken, with themes of discreteness and continuity even more
obviously expressed at the level of sperm and ovum than in our highly
symmetry-broken human bodily forms, involving pregnancy, live birth and
lactation.
The
relationship between subjective consciousness and the physical universe
displays a similar complementarity, with profound symmetry breaking. The Ôhard
problem of consciousness researchÕ (Chalmers 1995) underlines the fundamental
differences between subjective ÔqualiaÕ and the participatory continuity of the
Cartesian theatre on the one hand, and the objective, analyzable properties of
the physical world around us.
Although
we depend on a pragmatic acceptance of the real world, knowing we will pass out
if concussed and could die if we cut our veins, from birth to death, the only
veridical reality we experience is the envelope of subjective conscious
experience. It is only through the consensual regularities of subjective
consciousness that we come to know the real world and discover its natural and
scientific properties. As pointed out by Indian philosophy, this suggests that
mind is more fundamental than matter. The existential status of subjective
consciousness thus also has a claim to cosmological status.
A
further cosmological interpretation of consciousness we have noted in
association with the cat paradox is that it may function to solve the problem
of super-abundance, by reducing probability multiverses to the unique course of
history we know and witness. This view of consciousness in shaping the universe
is consistent with several of the conclusions of biocentrism (Lanza 2009).
The
lessons of quantum and fundamental particle complementarity and
symmetry-breaking, sexuality and the Yin-Yang complementarity of the Tao and of
Shakti-Shiva in Tantric mind-world cosmologies, lead to a cosmology of
consciousness, as symmetry-broken complement to the physical universe.
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