Neuroscience & Biobehavioral Reviews,
Journal Year:
2024,
Volume and Issue:
157, P. 105539 - 105539
Published: Jan. 9, 2024
Neurodevelopment
is
not
merely
a
process
of
brain
maturation,
but
an
adaptation
to
constraints
unique
each
individual
and
the
environments
we
co-create.
However,
our
theoretical
methodological
toolkits
often
ignore
this
reality.
There
growing
awareness
that
shift
needed
allows
us
study
divergence
behaviour
across
conventional
categorical
boundaries.
argue
in
future
must
also
incorporate
developmental
dynamics
capture
emergence
those
neurodevelopmental
differences.
This
crucial
step
will
require
adjustments
design
methodology.
If
ultimate
aim
how,
ultimately
when,
takes
place
then
need
analytic
toolkit
equal
these
ambitions.
We
over
reliance
on
group
averages
has
been
conceptual
dead-end
with
regard
part
because
any
differences
are
inevitably
lost
within
average.
Instead,
approaches
which
themselves
new,
or
simply
newly
applied
context,
may
allow
frameworks
from
groups
individuals.
Likewise,
methods
capable
modelling
complex
dynamic
systems
understand
emergent
only
possible
at
level
interacting
neural
system.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: June 9, 2021
Abstract
Dynamical
brain
state
transitions
are
critical
for
flexible
working
memory
but
the
network
mechanisms
incompletely
understood.
Here,
we
show
that
performance
entails
brain-wide
switching
between
activity
states
using
a
combination
of
functional
magnetic
resonance
imaging
in
healthy
controls
and
individuals
with
schizophrenia,
pharmacological
fMRI,
genetic
analyses
control
theory.
The
stability
relates
to
dopamine
D1
receptor
gene
expression
while
influenced
by
D2
modulation.
Individuals
schizophrenia
altered
properties,
including
more
diverse
energy
landscape
decreased
representations.
Our
results
demonstrate
relevance
signaling
steering
whole-brain
dynamics
during
link
these
processes
pathophysiology.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Oct. 3, 2022
Psychedelics
including
lysergic
acid
diethylamide
(LSD)
and
psilocybin
temporarily
alter
subjective
experience
through
their
neurochemical
effects.
Serotonin
2a
(5-HT2a)
receptor
agonism
by
these
compounds
is
associated
with
more
diverse
(entropic)
brain
activity.
We
postulate
that
this
increase
in
entropy
may
arise
part
from
a
flattening
of
the
brain's
control
energy
landscape,
which
can
be
observed
using
network
theory
to
quantify
required
transition
between
recurrent
states.
Using
states
derived
existing
functional
magnetic
resonance
imaging
(fMRI)
datasets,
we
show
LSD
reduce
for
state
transitions
compared
placebo.
Furthermore,
across
individuals,
reduction
correlates
frequent
increased
dynamics.
Through
analysis
incorporates
spatial
distribution
5-HT2a
receptors
(obtained
publicly
available
positron
emission
tomography
(PET)
data
under
non-drug
conditions),
demonstrate
an
association
reduced
energy.
Our
findings
provide
evidence
agonist
allow
facile
temporally
More
broadly,
receptor-informed
model
impact
neuropharmacological
manipulation
on
activity
EBioMedicine,
Journal Year:
2024,
Volume and Issue:
106, P. 105255 - 105255
Published: July 19, 2024
Controllability
analysis
is
an
approach
developed
for
evaluating
the
ability
of
a
brain
region
to
modulate
function
in
other
regions,
which
has
been
found
be
altered
major
depressive
disorder
(MDD).
Both
symptoms
and
cognitive
impairments
are
prominent
features
MDD,
but
case-control
differences
controllability
between
MDD
controls
can
not
fully
interpret
contribution
both
clinical
cognition
linked
patterns
among
them
MDD.
Reviews of Modern Physics,
Journal Year:
2018,
Volume and Issue:
90(3)
Published: Aug. 14, 2018
The
ability
to
effectively
control
brain
dynamics
holds
great
promise
for
the
enhancement
of
cognitive
function
in
humans,
and
betterment
their
quality
life.
Yet,
successfully
controlling
neural
systems
is
challenging,
part
due
immense
complexity
large
set
interactions
that
can
drive
any
single
change.
While
we
have
gained
some
understanding
neurons,
large-scale
--
networks
multiply
interacting
components
remains
poorly
understood.
Efforts
address
this
gap
include
construction
tools
networks,
mostly
adapted
from
dynamical
theory.
Informed
by
current
opportunities
practical
intervention,
these
theoretical
contributions
provide
models
draw
a
wide
array
mathematical
approaches.
We
present
intriguing
recent
developments
effective
strategies
dynamic
also
describe
potential
mechanisms
underlie
such
processes.
review
efforts
general
neurophysiological
processes
with
implications
development
function,
as
well
altered
medical
contexts
anesthesia
administration,
seizure
suppression,
deep-brain
stimulation
Parkinson's
disease.
conclude
forward-looking
discussion
regarding
how
emerging
results
network
especially
approaches
deal
nonlinear
or
more
realistic
trajectories
transitions
could
be
used
directly
pressing
questions
neuroscience.
Communications Biology,
Journal Year:
2020,
Volume and Issue:
3(1)
Published: May 22, 2020
A
diverse
set
of
white
matter
connections
supports
seamless
transitions
between
cognitive
states.
However,
it
remains
unclear
how
these
guide
the
temporal
progression
large-scale
brain
activity
patterns
in
different
Here,
we
analyze
brain's
trajectories
across
a
single
time
point
from
functional
magnetic
resonance
imaging
data
acquired
during
resting
state
and
an
n-back
working
memory
task.
We
find
that
specific
sequences
are
modulated
by
load,
associated
with
age,
related
to
task
performance.
Using
diffusion-weighted
same
subjects,
apply
tools
network
control
theory
show
linear
spread
along
constrains
probabilities
at
rest,
while
stimulus-driven
visual
inputs
explain
observed
Overall,
results
elucidate
structural
underpinnings
cognitively
developmentally
relevant
spatiotemporal
dynamics.
Cell Reports,
Journal Year:
2019,
Volume and Issue:
28(10), P. 2554 - 2566.e7
Published: Sept. 1, 2019
Optimizing
direct
electrical
stimulation
for
the
treatment
of
neurological
disease
remains
difficult
due
to
an
incomplete
understanding
its
physical
propagation
through
brain
tissue.
Here,
we
use
network
control
theory
predict
how
spreads
white
matter
influence
spatially
distributed
dynamics.
We
test
theory's
predictions
using
a
unique
dataset
comprising
diffusion
weighted
imaging
and
electrocorticography
in
epilepsy
patients
undergoing
grid
stimulation.
find
statistically
significant
shared
variance
between
predicted
activity
state
transitions
observed
transitions.
then
optimal
framework
posit
testable
hypotheses
regarding
which
states
structural
properties
will
efficiently
improve
memory
encoding
when
stimulated.
Our
work
quantifies
role
that
architecture
plays
guiding
dynamics
offers
empirical
support
utility
explaining
brain's
response