Brain Topography,
Год журнала:
2023,
Номер
37(1), С. 19 - 36
Опубликована: Ноя. 23, 2023
Abstract
Transcranial
magnetic
stimulation
(TMS)–evoked
electroencephalography
(EEG)
potentials
(TEPs)
provide
unique
insights
into
cortical
excitability
and
connectivity.
However,
confounding
EEG
signals
from
auditory
somatosensory
co-stimulation
complicate
TEP
interpretation.
Our
optimized
sham
procedure
established
with
TMS
of
primary
motor
cortex
(Gordon
in
JAMA
245:118708,
2021)
differentiates
direct
responses
to
those
caused
by
peripheral
sensory
inputs.
Using
this
approach,
study
aimed
investigate
TEPs
their
test–retest
reliability
when
targeting
regions
outside
the
cortex,
specifically
left
angular
gyrus,
supplementary
area,
medial
prefrontal
cortex.
We
conducted
three
identical
TMS–EEG
sessions
one
week
apart
involving
24
healthy
participants.
In
each
session,
we
targeted
areas
separately
using
a
figure-of-eight
coil
for
active
TMS,
while
second
away
head
produced
input
TMS.
Masking
noise
electric
scalp
were
applied
both
conditions
achieve
matched
High
was
observed
conditions.
declined
‘cleaned’
TEPs,
resulting
subtraction
evoked
response
active,
particularly
latencies
>
100
ms
following
pulse.
Significant
differences
found
between
at
<
90
all
areas,
exhibiting
distinct
spatiotemporal
characteristics
specific
target.
conclusion,
our
effectively
reveals
activation
brain
Moreover,
demonstrate
impact
inputs
on
TMS-EEG
responses.
Diagnostics,
Год журнала:
2025,
Номер
15(4), С. 456 - 456
Опубликована: Фев. 13, 2025
Background/Objectives:
The
following
systematic
review
integrates
neuroimaging
techniques
with
deep
learning
approaches
concerning
emotion
detection.
It,
therefore,
aims
to
merge
cognitive
neuroscience
insights
advanced
algorithmic
methods
in
pursuit
of
an
enhanced
understanding
and
applications
recognition.
Methods:
study
was
conducted
PRISMA
guidelines,
involving
a
rigorous
selection
process
that
resulted
the
inclusion
64
empirical
studies
explore
modalities
such
as
fMRI,
EEG,
MEG,
discussing
their
capabilities
limitations
It
further
evaluates
architectures,
including
neural
networks,
CNNs,
GANs,
terms
roles
classifying
emotions
from
various
domains:
human-computer
interaction,
mental
health,
marketing,
more.
Ethical
practical
challenges
implementing
these
systems
are
also
analyzed.
Results:
identifies
fMRI
powerful
but
resource-intensive
modality,
while
EEG
MEG
more
accessible
high
temporal
resolution
limited
by
spatial
accuracy.
Deep
models,
especially
CNNs
have
performed
well
emotions,
though
they
do
not
always
require
large
diverse
datasets.
Combining
data
behavioral
features
improves
classification
performance.
However,
ethical
challenges,
privacy
bias,
remain
significant
concerns.
Conclusions:
has
emphasized
efficiencies
detection,
technical
were
highlighted.
Future
research
should
integrate
advances,
establish
innovative
enhance
system
reliability
applicability.
Cerebral Cortex,
Год журнала:
2022,
Номер
33(7), С. 4116 - 4134
Опубликована: Сен. 20, 2022
Abstract
Verbal
interaction
and
imitation
are
essential
for
language
learning
development
in
young
children.
However,
it
is
unclear
how
mother–child
dyads
synchronize
oscillatory
neural
activity
at
the
cortical
level
turn-based
speech
interactions.
Our
study
investigated
interbrain
synchrony
pairs
during
a
turn-taking
paradigm
of
verbal
imitation.
A
dual-MEG
(magnetoencephalography)
setup
was
used
to
measure
brain
from
interactive
simultaneously.
Interpersonal
synchronization
compared
between
socially
noninteractive
tasks
(passive
listening
pure
tones).
Interbrain
networks
showed
increased
conditions
theta
alpha
bands.
Enhanced
interpersonal
observed
right
angular
gyrus,
triangular,
left
opercular
parts
inferior
frontal
gyrus.
Moreover,
these
parietal
regions
appear
be
hubs
exhibiting
high
number
connections.
These
areas
could
serve
as
marker
component
social
communication.
The
present
first
investigate
interactions
using
setup.
results
advance
our
understanding
suggest
role
“gating”
learning.
NeuroImage,
Год журнала:
2023,
Номер
281, С. 120373 - 120373
Опубликована: Сен. 10, 2023
The
left
temporo-parietal
cortex
(TPC)
is
crucial
for
phonological
decoding,
i.e.,
learning
and
retaining
sound-letter
mappings,
appears
hypoactive
in
dyslexia.
Here,
we
tested
the
causal
contribution
of
this
area
reading
typical
readers
with
transcranial
magnetic
stimulation
(TMS)
explored
network's
response
fMRI.
By
investigating
underlying
neural
correlates
stimulation-induced
modulations
network,
can
help
improve
targeted
interventions
individuals
28
adult
overtly
read
simple
complex
words
pseudowords
during
fMRI
after
effective
sham
TMS
over
TPC.
To
explore
differences
functional
activation
connectivity
within
performed
univariate
multivariate
analyses,
as
well
dynamic
modeling.
While
TMS-induced
effects
on
performance
brain
showed
large
individual
variability,
analyses
revealed
a
shift
inferior
frontal
pseudoword
TMS.
Furthermore,
increased
from
ventral
occipito-temporal
to
In
absence
performance,
observed
changes
task-related
activity
increase
coupling
between
two
core
nodes
suggest
successful
short-term
compensatory
reorganization
network
following
disruption.
This
study
first
neurophysiological
induced
by
node
while
performing
an
overt
task.
We
provide
evidence
remote
emphasize
relevance
interactions
network.
Proceedings of the National Academy of Sciences,
Год журнала:
2023,
Номер
120(47)
Опубликована: Ноя. 14, 2023
Recent
neurobiological
models
on
language
suggest
that
auditory
sentence
comprehension
is
supported
by
a
coordinated
temporal
interplay
within
left-dominant
brain
network,
including
the
posterior
inferior
frontal
gyrus
(pIFG),
superior
and
sulcus
(pSTG/STS),
angular
(AG).
Here,
we
probed
timing
causal
relevance
of
between
these
regions
means
concurrent
transcranial
magnetic
stimulation
electroencephalography
(TMS-EEG).
Our
TMS-EEG
experiments
reveal
region-
time-specific
evidence
for
bidirectional
information
flow
from
left
pSTG/STS
to
pIFG
back
during
processing.
Adapting
condition-and-perturb
approach,
our
findings
further
can
be
AG
in
state-dependent
manner.
Frontiers in Aging Neuroscience,
Год журнала:
2025,
Номер
17
Опубликована: Март 28, 2025
There
is
a
huge
heterogeneity
of
magnetic
resonance
imaging
findings
in
Parkinson's
disease
(PD)
with
impulse
control
disorders
(ICDs)
studies.
Here,
we
hypothesized
that
brain
regions
identified
by
structural
and
functional
studies
PD
ICDs
could
be
reconciled
common
network.
In
this
study,
an
initial
systematic
literature
review
was
conducted
to
collect
evaluate
whole-brain
related
ICDs.
We
subsequently
utilized
the
Human
Connectome
Project
(HCP)
dataset
(n
=
1,093)
novel
connectivity
network
mapping
(FCNM)
technique
identify
affected
A
total
19
25
contrasts,
incorporating
345
individuals
ICDs,
787
without
were
included
analysis.
By
using
HCP
FCNM
technique,
ultimately
aberrant
neural
networks
predominantly
involve
default
mode
(middle
inferior
temporal
gyrus,
anterior
cingulate
cortex,
angular
gyrus)
subcortical
(caudate
nucleus).
This
study
suggests
heterogeneous
neuroimaging
can
attributed
shared
abnormalities
networks.
These
dysfunctions
are
associated
impaired
self-regulation,
decision-making,
heightened
impulsivity
Our
integrate
diverse
results
from
previous
studies,
providing
clearer
understanding
neurobiological
mechanisms
underlying
at
level.
Frontiers in Human Neuroscience,
Год журнала:
2024,
Номер
17
Опубликована: Янв. 11, 2024
Background
Type
2
diabetes
mellitus
(T2DM)
has
been
demonstrated
an
increased
risk
factor
of
cognitive
impairment
or
even
dementia.
Kinds
resting-state
functional
magnetic
resonance
imaging
indices
have
proposed
and
used
to
investigate
the
brain
mechanism
underlying
diabetic
impairment.
This
study
aimed
explore
early
changes
in
spontaneous
neural
activity
among
T2DM
patients
without
by
means
multiple
rs-fMRI
indices.
Methods
age-,
sex-,
education
matched
control
subjects
were
included
this
study.
Three
indices,
namely
amplitude
low-frequency
fluctuation
(ALFF),
regional
homogeneity
(ReHo)
voxel-mirrored
homotopic
connectivity
(VMHC)
computed
after
image
pre-processing.
The
Montreal
Cognitive
Assessment
(MoCA)
was
performed
distinguish
normal
cognition.
Brain
volume
also
evaluated.
Correlation
analyses
conducted
any
relationship
clinical
characteristics.
Results
detected
significantly
decreased
right
angular
left
prefrontal
gyrus
including
middle
superior
frontal
gyrus.
Increased
activities
observed
caudate
supplementary
motor
area.
No
correlation
between
characteristics
survived
comparison
correction.
But
we
a
significant,
but
ALFF
ReHo
values
reported
areas.
Conclusion
combination
ALFF,
VMHC
abnormal
regions
which
These
results
may
enhance
our
understanding
at
stage.
Abstract
Hippocampus-parietal
cortex
circuits
are
thought
to
play
a
crucial
role
in
memory
and
attention,
but
their
neural
basis
remains
poorly
understood.
We
employed
intracranial
electroencephalography
(iEEG)
investigate
the
neurophysiological
underpinning
of
these
across
three
tasks
spanning
verbal
spatial
domains.
uncovered
consistent
pattern
higher
causal
directed
connectivity
from
hippocampus
both
lateral
parietal
(supramarginal
angular
gyrus)
medial
(posterior
cingulate
cortex)
delta–theta
band
during
encoding
recall.
This
was
independent
activation
or
suppression
states
cortex.
Crucially,
supramarginal
gyrus
enhanced
participants
with
recall,
highlighting
its
behavioral
significance.
Our
findings
align
attention-to-memory
model,
which
posits
that
attention
directs
cognitive
resources
toward
pertinent
information
formation.
The
robustness
results
demonstrated
through
Bayesian
replication
analysis
recall
periods
tasks.
study
sheds
light
on
casual
signaling
within
hippocampus–parietal
circuits,
broadening
our
understanding
critical
roles
human
cognition.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Фев. 17, 2025
Speed-of-information
processing
(SIP)
is
often
impaired
in
people
living
with
HIV
(PLWH),
typically
assessed
through
tests
such
as
the
digit
symbol
(DS)
and
search,
which
also
rely
on
motor
executive
functions.
This
study
aims
to
disentangle
SIP
deficits
from
other
cognitive
impairments
PLWH
using
an
MRI-adapted
substitution
test
(mDSST).
Fifty-seven
(34.7
±
11.2
years)
50
age-matched
without
(PLWoH,
31.8
9.9
completed
standardized
neuropsychological
mDSST.
Behavioral
performances
brain
activations
were
compared,
correlations
drawn
between
group-differentiating
clinical
ratings
of
domains.
Results
showed
that
performed
worse
DS
made
fewer
responses,
was
slower
mDSST,
correlating
ratings.
Notably,
greater
attention
compared
PLWoH,
rather
than
or
motor.
exhibited
primary
cortex
activation
reduced
right
angular
gyrus
activation.
These
findings
suggest
SIP-related
may
be
partially
linked
abnormal
visuospatial
attention,
reflected
by
activation,
higher
potentially
serving
a
compensatory
mechanism.
Future
studies
should
explore
whether
prefrontal
regions
implicated
are
more
severely
affected
PLWH.