422
E. J. Brändas
working rationale: The minimum neural mechanisms jointly sufficient for any one
specific conscious experience. In particular Crick and Koch focus on the binding
problem and the way a responding neuron can be considered to be binding a set of
points in relation to working memory and appropriate responses of objects in the
visual field as an emerging process during evolution. A critical detail in the proposed
theory is the prevailing neural oscillations of about 40 Hz (35–75 Hz) that occurs in
cortical areas, serving as an underlying mechanism for neural synchronization and
phase locking.
Since our leitmotif is to provide a bottom-up argument for a possible understanding of general life processes, including microscopic self-organization of fundamental
quantum-thermal correlations all the way from DNA-RNA and the genetic code to
conscious communication, it is necessary to explain the appearance of the abovementioned neural activity, its meaning and how it emerges, perhaps also being able
to do some linkage with established top-down knowledge. The oscillations appear
as a stochastic Brownian-like background for conscious communication. Consider
a human cerebrum, right or left, of about 600 g each, containing a high percentage
(about 85%) of water imparting x A ≈ 27 moles of brain entities and N B = x A N A
Brownian particles, where N A is Avogadro’s number. Close to equilibrium one
obtains the flux from Gibbs distribution
N B
¯
N B
=
1
¯
N B
(7.1)
where ¯
N B is the average number of particles and N
2
B = (N B − ¯
N B ) 2 is the variance.
61 Application of Eq. (4.6) and (4.10) gives the flux of Brownian-like motion,
noting that in Eq. (4.6) the factor 4π occurs because n on the left-hand side concerns
total fluxes while the right-hand side refers to flux per solid angle,
n
n
=
1
¯
N B
(7.2)
identifying the outgoing flux as in Eq. (7.2). Hence one obtains from
62
√
x A N A
4π
=
k B T
h
t rel
(7.3)
a Crick-Koch frequency of about 20 Hz corresponding to t rel = 50 ms. This agreement
is of course fortuitous beyond expectation, but one might nevertheless anticipate that
there should lie an ounce of truth in these orders of magnitudes.
61 For the Poisson distribution the variance equals the mean.
62 Equations (4.6) and (4.10) do not guarantee that the UD condition holds. In this particular case
the Brownian-like motion contains no information.
E. J. Brändas
working rationale: The minimum neural mechanisms jointly sufficient for any one
specific conscious experience. In particular Crick and Koch focus on the binding
problem and the way a responding neuron can be considered to be binding a set of
points in relation to working memory and appropriate responses of objects in the
visual field as an emerging process during evolution. A critical detail in the proposed
theory is the prevailing neural oscillations of about 40 Hz (35–75 Hz) that occurs in
cortical areas, serving as an underlying mechanism for neural synchronization and
phase locking.
Since our leitmotif is to provide a bottom-up argument for a possible understanding of general life processes, including microscopic self-organization of fundamental
quantum-thermal correlations all the way from DNA-RNA and the genetic code to
conscious communication, it is necessary to explain the appearance of the abovementioned neural activity, its meaning and how it emerges, perhaps also being able
to do some linkage with established top-down knowledge. The oscillations appear
as a stochastic Brownian-like background for conscious communication. Consider
a human cerebrum, right or left, of about 600 g each, containing a high percentage
(about 85%) of water imparting x A ≈ 27 moles of brain entities and N B = x A N A
Brownian particles, where N A is Avogadro’s number. Close to equilibrium one
obtains the flux from Gibbs distribution
N B
¯
N B
=
1
¯
N B
(7.1)
where ¯
N B is the average number of particles and N
2
B = (N B − ¯
N B ) 2 is the variance.
61 Application of Eq. (4.6) and (4.10) gives the flux of Brownian-like motion,
noting that in Eq. (4.6) the factor 4π occurs because n on the left-hand side concerns
total fluxes while the right-hand side refers to flux per solid angle,
n
n
=
1
¯
N B
(7.2)
identifying the outgoing flux as in Eq. (7.2). Hence one obtains from
62
√
x A N A
4π
=
k B T
h
t rel
(7.3)
a Crick-Koch frequency of about 20 Hz corresponding to t rel = 50 ms. This agreement
is of course fortuitous beyond expectation, but one might nevertheless anticipate that
there should lie an ounce of truth in these orders of magnitudes.
61 For the Poisson distribution the variance equals the mean.
62 Equations (4.6) and (4.10) do not guarantee that the UD condition holds. In this particular case
the Brownian-like motion contains no information.