Frontiers in Human Neuroscience,
Год журнала:
2024,
Номер
18
Опубликована: Дек. 4, 2024
Low-intensity
transcranial
focused
ultrasound
(tFUS)
is
a
brain
stimulation
approach
that
holds
promise
for
the
treatment
of
brain-based
disorders.
Studies
in
humans
have
shown
tFUS
can
successfully
modulate
perfusion
focal
sonication
targets,
including
amygdala;
however,
limited
research
has
explored
how
impacts
large-scale
neural
networks.
Frontiers in Psychiatry,
Год журнала:
2024,
Номер
15
Опубликована: Ноя. 19, 2024
Substance
use
disorder
(SUD)
is
a
persistent
public
health
issue
that
necessitates
the
exploration
of
novel
therapeutic
interventions.
Low-intensity
focused
ultrasound
(LIFU)
promising
modality
for
precise
and
invasive
modulation
brain
activity,
capable
redefining
landscape
SUD
treatment.
The
review
overviews
effective
LIFU
neuromodulatory
parameters
molecular
mechanisms,
focusing
on
reward
pathways
in
key
regions
animal
human
models.
Integration
with
established
therapeutics
holds
promise
augmenting
treatment
outcomes
SUD.
current
research
examines
LIFU's
efficacy
reducing
cravings
withdrawal
symptoms.
shows
cravings,
modulating
circuitry,
addressing
interoceptive
dysregulation
emotional
distress.
Selecting
optimal
parameters,
encompassing
frequency,
burst
patterns,
intensity,
pivotal
balancing
safety.
However,
inconsistencies
empirical
findings
warrant
further
physiological
action
long-term
effects.
Collaborative
interdisciplinary
investigations
are
imperative
to
fully
realize
potential
revolutionizing
paradigms
enhancing
patient
outcomes.
Low-intensity
Transcranial
Ultrasound
Stimulation
(TUS)
is
a
promising
non-invasive
technique
for
deep-brain
stimulation
and
focal
neuromodulation.
Research
with
animal
models
computational
modelling
has
raised
the
possibility
that
TUS
can
be
biased
towards
enhancing
or
suppressing
neural
function.
Here,
we
first
conduct
systematic
review
of
human
studies
perturbing
function
alleviating
brain
disorders.
We
then
collate
set
hypotheses
on
directionality
effects
an
initial
meta-analysis
study
reported
outcomes
to
date
(
n
=
32
studies,
37
experiments).
find
parameters
such
as
duty
cycle
show
some
predictability
regarding
whether
targeted
area’s
likely
enhanced
suppressed.
Given
sample
sizes
are
exponentially
increasing,
recognize
results
stabilize
change
further
reported.
Therefore,
conclude
by
establishing
Iowa-Newcastle
(inTUS)
resource
reporting
support
hypothesis
testing
greater
precision
in
neuromodulation
TUS.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 27, 2024
Abstract
Background
Low-intensity
transcranial
focused
ultrasound
(tFUS)
is
a
brain
stimulation
approach
that
holds
immense
promise
for
the
treatment
of
brain-based
disorders.
Several
studies
in
humans
have
shown
tFUS
can
successfully
modulate
perfusion
focal
sonication
targets
including
amygdala;
however,
limited
research
has
explored
how
impacts
function
large-scale
neural
networks.
Objective
The
aim
current
study
was
to
address
this
gap
and
examine
changes
resting-state
connectivity
between
network
nodes
using
randomized,
double-blind,
within-subject
crossover
design.
Methods
Healthy
adults
(n=18)
completed
two
sessions,
14
days
apart.
Each
session
included
either
right
amygdala
or
left
entorhinal
cortex
(ErC).
inclusion
active
allowed
within-subjects
comparisons
as
locus
sonication.
Resting-state
functional
magnetic
resonance
imaging
collected
before
after
each
session.
Results
altered
(rsFC)
within
rs-network
nodes.
Specifically,
pre-to-post
modulated
salience
(SAN)
SAN
default-mode
(DMN)
fronto-parietal
(FRP).
A
decrease
FPN
specific
target.
Pre-to-post
ErC
found
dorsal
attention
(DAN)
DMN.
An
increase
DAN
DMN
Conclusion
These
preliminary
findings
may
suggest
induces
neuroplastic
beyond
immediate
Frontiers in Human Neuroscience,
Год журнала:
2024,
Номер
18
Опубликована: Дек. 4, 2024
Low-intensity
transcranial
focused
ultrasound
(tFUS)
is
a
brain
stimulation
approach
that
holds
promise
for
the
treatment
of
brain-based
disorders.
Studies
in
humans
have
shown
tFUS
can
successfully
modulate
perfusion
focal
sonication
targets,
including
amygdala;
however,
limited
research
has
explored
how
impacts
large-scale
neural
networks.