Frontiers in Network Physiology,
Journal Year:
2024,
Volume and Issue:
4
Published: Oct. 29, 2024
The
nervous
system,
especially
the
human
brain,
is
characterized
by
its
highly
complex
network
topology.
neurodevelopment
of
some
features
has
been
described
in
terms
dynamic
optimization
rules.
We
discuss
principle
adaptive
rewiring,
i.e.,
reorganization
a
according
to
intensity
internal
signal
communication
as
measured
synchronization
or
diffusion,
and
recent
generalization
for
applications
directed
networks.
These
have
extended
rewiring
from
oversimplified
networks
more
neurally
plausible
ones.
Adaptive
captures
all
key
brain
topology:
it
transforms
initially
random
regular
into
with
modular
small-world
structure
rich-club
core.
This
effect
specific
sense
that
can
be
tailored
computational
needs,
robust
does
not
depend
on
critical
regime,
flexible
parametric
variation
generates
range
variant
configurations.
Extreme
associated
at
macroscopic
level
disorders
such
schizophrenia,
autism,
dyslexia,
suggest
relationship
between
dyslexia
creativity.
cooperates
growth
interacts
constructively
spatial
organization
principles
formation
topographically
distinct
modules
structures
ganglia
chains.
At
mesoscopic
level,
enables
development
functional
architectures,
convergent-divergent
units,
sheds
light
early
divergence
convergence
in,
example,
visual
system.
Finally,
we
future
prospects
rewiring.
Trends in Cognitive Sciences,
Journal Year:
2024,
Volume and Issue:
28(4), P. 352 - 368
Published: Jan. 9, 2024
To
explain
how
the
brain
orchestrates
information-processing
for
cognition,
we
must
understand
information
itself.
Importantly,
is
not
a
monolithic
entity.
Information
decomposition
techniques
provide
way
to
split
into
its
constituent
elements:
unique,
redundant,
and
synergistic
information.
We
review
disentangling
redundant
interactions
redefining
our
understanding
of
integrative
function
neural
organisation.
navigates
trade-offs
between
redundancy
synergy,
converging
evidence
integrating
structural,
molecular,
functional
underpinnings
synergy
redundancy;
their
roles
in
cognition
computation;
they
might
arise
over
evolution
development.
Overall,
provides
guiding
principle
informational
architecture
cognition.
NeuroImage,
Journal Year:
2024,
Volume and Issue:
290, P. 120563 - 120563
Published: March 16, 2024
Individual
differences
in
general
cognitive
ability
(GCA)
have
a
biological
basis
within
the
structure
and
function
of
human
brain.
Network
neuroscience
investigations
revealed
neural
correlates
GCA
structural
as
well
functional
brain
networks.
However,
whether
relationship
between
networks,
structural-functional
network
coupling
(SC-FC
coupling),
is
related
to
individual
remains
an
open
question.
We
used
data
from
1030
adults
Human
Connectome
Project,
derived
connectivity
diffusion
weighted
imaging,
resting-state
fMRI,
assessed
latent
g-factor
12
tasks.
Two
similarity
measures
six
communication
were
model
possible
interactions
arising
SC-FC
was
estimated
degree
which
these
align
with
actual
connectivity,
providing
insights
into
different
strategies.
At
whole-brain
level,
higher
associated
coupling,
but
only
when
considering
path
transitivity
strategy.
Taking
region-specific
variations
strategy
account
differentiating
positive
negative
associations
GCA,
allows
for
prediction
scores
cross-validated
framework
(correlation
predicted
observed
scores:
r
=
.25,
p
<
.001).
The
same
also
predicts
completely
independent
sample
(N
567,
.19,
Our
results
propose
neurobiological
correlate
suggest
strategies
efficient
information
processing
predictive
ability.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Dec. 11, 2023
Abstract
Brain
communication,
defined
as
information
transmission
through
white-matter
connections,
is
at
the
foundation
of
brain’s
computational
capacities
that
subtend
almost
all
aspects
behavior:
from
sensory
perception
shared
across
mammalian
species,
to
complex
cognitive
functions
in
humans.
How
did
communication
strategies
macroscale
brain
networks
adapt
evolution
accomplish
increasingly
functions?
By
applying
a
graph-
and
information-theory
approach
assess
information-related
pathways
male
mouse,
macaque
human
brains,
we
show
gap
between
selective
non-human
mammals,
where
regions
share
single
polysynaptic
pathways,
parallel
humans,
multiple
pathways.
In
acts
major
connector
unimodal
transmodal
systems.
The
layout
unique
individuals
different
pointing
individual-level
specificity
routing
architecture.
Our
work
provides
evidence
patterns
are
tied
networks.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 12, 2024
Abstract
The
macroscale
connectome
is
the
network
of
physical,
white-matter
tracts
between
brain
areas.
connections
are
generally
weighted
and
their
values
interpreted
as
measures
communication
efficacy.
In
most
applications,
weights
either
assigned
based
on
imaging
features–e.g.
diffusion
parameters–or
inferred
using
statistical
models.
reality,
ground-truth
unknown,
motivating
exploration
alternative
edge
weighting
schemes.
Here,
we
explore
a
multi-modal,
regression-based
model
that
endows
reconstructed
fiber
with
directed
signed
weights.
We
find
fits
observed
data
well,
outperforming
suite
null
estimated
subject-specific
highly
reliable,
even
when
fit
relatively
few
training
samples,
networks
maintain
number
desirable
features.
summary,
offer
simple
framework
for
data,
demonstrating
both
its
ease
implementation
while
benchmarking
utility
typical
analyses,
including
graph
theoretic
modeling
brain-behavior
associations.
PLoS Biology,
Journal Year:
2024,
Volume and Issue:
22(2), P. e3002489 - e3002489
Published: Feb. 5, 2024
The
brain
connectome
is
an
embedded
network
of
anatomically
interconnected
regions,
and
the
study
its
topological
organization
in
mammals
has
become
paramount
importance
due
to
role
scaffolding
function
behavior.
Unlike
many
other
observable
networks,
connections
incur
material
energetic
cost,
their
length
density
are
volumetrically
constrained
by
skull.
Thus,
open
question
how
differences
volume
impact
topology.
We
address
this
issue
using
MaMI
database,
a
diverse
set
mammalian
connectomes
reconstructed
from
201
animals,
covering
103
species
12
taxonomy
orders,
whose
size
varies
over
more
than
4
orders
magnitude.
Our
analyses
focus
on
relationships
between
modular
organization.
After
having
identified
modules
through
multiresolution
approach,
we
observed
connectivity
features
relate
structure
these
relations
vary
across
volume.
found
that
as
increases,
spatially
compact
dense,
comprising
costly
connections.
Furthermore,
investigated
spatial
embedding
shapes
communication,
finding
nodes’
distance
progressively
impacts
communication
efficiency.
modes
variation
policies,
smaller
bigger
brains
show
higher
efficiency
routing-
diffusion-based
signaling,
respectively.
Finally,
bridging
modularity
larger
brains,
imposes
stronger
constraints
signaling.
Altogether,
our
results
systematically
related
topology
tighter
restrictions
brains.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 22, 2023
Abstract
Pang
et
al.
(2023)
present
novel
analyses
demonstrating
that
brain
dynamics
can
be
understood
as
resulting
from
the
excitation
of
geometric
modes,
derived
shape
brain.
Notably,
they
demonstrate
linear
combinations
modes
reconstruct
patterns
fMRI
data
more
accurately,
and
with
fewer
dimensions,
than
comparable
connectivity-derived
modes.
Equipped
these
results,
underpinned
by
neural
field
theory,
authors
contend
geometry
cortical
surface
provides
a
parsimonious
explanation
activity
structural
connectivity.
This
claim
runs
counter
to
prevailing
theories
information
flow
in
brain,
which
emphasize
role
long-distance
axonal
projections
fasciculated
white
matter
relaying
signals
between
regions
(Honey
2009;
Deco
2011;
Seguin
al.,
2023).
While
we
acknowledge
plays
an
important
shaping
human
function,
feel
presented
work
falls
short
establishing
brain’s
is
“a
fundamental
constraint
on
complex
interregional
connectivity”
(Pang
Here,
provide
1)
brief
critique
paper’s
framing
2)
evidence
showing
their
methodology
lacks
specificity
orientation
shape.
Ultimately,
recognize
mode
approach
powerful
representational
framework
for
analysis,
but
also
believe
there
are
key
caveats
consider
alongside
claims
made
manuscript.