<s>
The	O
Dehaene	B-Algorithm
–	I-Algorithm
Changeux	I-Algorithm
model	I-Algorithm
(	O
DCM	O
)	O
,	O
also	O
known	O
as	O
the	O
global	O
neuronal	O
workspace	O
or	O
the	O
global	O
cognitive	O
workspace	O
model	O
is	O
a	O
part	O
of	O
Bernard	O
Baars	O
's	O
"	O
global	O
workspace	O
model	O
"	O
for	O
consciousness	O
.	O
</s>
<s>
It	O
is	O
a	O
computer	B-Application
model	I-Application
of	O
the	O
neural	O
correlates	O
of	O
consciousness	O
programmed	O
as	O
a	O
neural	B-Architecture
network	I-Architecture
.	O
</s>
<s>
It	O
attempts	O
to	O
reproduce	O
the	O
swarm	B-Application
behaviour	O
of	O
the	O
brain	O
's	O
higher	O
cognitive	O
functions	O
such	O
as	O
consciousness	O
,	O
decision-making	O
and	O
the	O
central	O
executive	O
functions	O
.	O
</s>
<s>
The	O
Dehaene	B-Algorithm
–	I-Algorithm
Changeux	I-Algorithm
model	I-Algorithm
was	O
initially	O
established	O
as	O
a	O
spin	O
glass	O
neural	B-Architecture
network	I-Architecture
attempting	O
to	O
represent	O
learning	O
and	O
to	O
then	O
provide	O
a	O
stepping	O
stone	O
towards	O
artificial	O
learning	O
among	O
other	O
objectives	O
.	O
</s>
<s>
The	O
Dehaene	B-Algorithm
–	I-Algorithm
Changeux	I-Algorithm
model	I-Algorithm
is	O
a	O
meta	O
neural	B-Architecture
network	I-Architecture
(	O
i.e.	O
</s>
<s>
a	O
network	O
of	O
neural	B-Architecture
networks	I-Architecture
)	O
composed	O
of	O
a	O
very	O
large	O
number	O
of	O
integrate-and-fire	O
neurons	O
programmed	O
in	O
either	O
a	O
stochastic	O
or	O
deterministic	O
way	O
.	O
</s>
<s>
Among	O
others	O
Cohen	O
&	O
Hudson	O
(	O
2002	O
)	O
had	O
already	O
used	O
"	O
Meta	O
neural	B-Architecture
networks	I-Architecture
as	O
intelligent	O
agents	O
for	O
diagnosis	O
"	O
Similarly	O
to	O
Cohen	O
&	O
Hudson	O
,	O
Dehaene	O
&	O
Changeux	O
have	O
established	O
their	O
model	O
as	O
an	O
interaction	O
of	O
meta-neural	O
networks	O
(	O
thalamocortical	O
columns	O
)	O
themselves	O
programmed	O
in	O
the	O
manner	O
of	O
a	O
"	O
hierarchy	O
of	O
neural	B-Architecture
networks	I-Architecture
that	O
together	O
act	O
as	O
an	O
intelligent	O
agent	O
"	O
,	O
in	O
order	O
to	O
use	O
them	O
as	O
a	O
system	O
composed	O
of	O
a	O
large	O
scale	O
of	O
inter-connected	O
intelligent	O
agents	O
for	O
predicting	O
the	O
self-organized	O
behaviour	O
of	O
the	O
neural	O
correlates	O
of	O
consciousness	O
.	O
</s>
<s>
(	O
2002	O
)	O
had	O
already	O
clearly	O
identified	O
spiking	B-Algorithm
neurons	I-Algorithm
as	O
intelligent	O
agents	O
since	O
the	O
lower	O
bound	O
for	O
computational	O
power	O
of	O
networks	O
of	O
spiking	B-Algorithm
neurons	I-Algorithm
is	O
the	O
capacity	O
to	O
simulate	O
in	O
real-time	O
for	O
boolean-valued	O
inputs	O
any	O
Turing	B-Architecture
machine	I-Architecture
.	O
</s>
<s>
The	O
DCM	O
being	O
composed	O
of	O
a	O
very	O
large	O
number	O
of	O
interacting	O
sub-networks	O
which	O
are	O
themselves	O
intelligent	O
agents	O
,	O
it	O
is	O
formally	O
a	O
Multi-agent	O
system	O
programmed	O
as	O
a	O
Swarm	B-Application
or	O
neural	B-Architecture
networks	I-Architecture
and	O
a	O
fortiori	O
of	O
spiking	B-Algorithm
neurons	I-Algorithm
.	O
</s>
<s>
The	O
Dehaene-Changeux	B-Algorithm
Model	I-Algorithm
contributed	O
to	O
the	O
study	O
of	O
nonlinearity	O
and	O
self-organized	O
criticality	O
in	O
particular	O
as	O
an	O
explanatory	O
model	O
of	O
the	O
brain	O
's	O
emergent	O
behaviors	O
,	O
including	O
consciousness	O
.	O
</s>
<s>
Furthermore	O
,	O
exploring	O
the	O
neural	O
dynamics	O
of	O
cognitive	O
efforts	O
after	O
,	O
inter	O
alia	O
,	O
the	O
Dehaene-Changeux	B-Algorithm
Model	I-Algorithm
,	O
Kitzbichler	O
et	O
al	O
.	O
</s>
<s>
Werner	O
(	O
2007a	O
)	O
used	O
the	O
Dehaene-Changeux	O
Global	O
Neuronal	O
Workspace	O
to	O
defend	O
the	O
use	O
of	O
statistical	O
physics	O
approaches	O
for	O
exploring	O
phase	O
transitions	O
,	O
scaling	O
and	O
universality	O
properties	O
of	O
the	O
so-called	O
"	O
Dynamic	O
Core	O
"	O
of	O
the	O
brain	O
,	O
with	O
relevance	O
to	O
the	O
macroscopic	O
electrical	O
activity	O
in	O
EEG	B-Application
and	O
EMG	O
.	O
</s>
<s>
Furthermore	O
,	O
building	O
from	O
the	O
Dehaene-Changeux	B-Algorithm
Model	I-Algorithm
,	O
Werner	O
(	O
2007b	O
)	O
proposed	O
that	O
the	O
application	O
of	O
the	O
twin	O
concepts	O
of	O
scaling	O
and	O
universality	O
of	O
the	O
theory	O
of	O
non-equilibrium	O
phase	O
transitions	O
can	O
serve	O
as	O
an	O
informative	O
approach	O
for	O
elucidating	O
the	O
nature	O
of	O
underlying	O
neural-mechanisms	O
,	O
with	O
emphasis	O
on	O
the	O
dynamics	O
of	O
recursively	O
reentrant	O
activity	O
flow	O
in	O
intracortical	O
and	O
cortico-subcortical	O
neuronal	O
loops	O
.	O
</s>
<s>
The	O
Dehaene-Changeux	B-Algorithm
Model	I-Algorithm
was	O
contrasted	O
and	O
cited	O
in	O
the	O
study	O
of	O
collective	O
consciousness	O
and	O
its	O
pathologies	O
(	O
Wallace	O
et	O
al	O
.	O
</s>
<s>
(	O
2007	O
)	O
used	O
the	O
model	O
for	O
a	O
reverse	O
somatotopic	O
study	O
,	O
demonstrating	O
a	O
correlation	O
between	O
baseline	O
brain	B-Application
activity	I-Application
and	O
somatosensory	O
perception	O
in	O
humans	O
.	O
</s>
