Predicting functional impairments with lesion‐derived disconnectome mapping: Validation in stroke patients with motor deficits
Maedeh Khalilian,
No information about this author
Martine Roussel,
No information about this author
Olivier Godefroy
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et al.
European Journal of Neuroscience,
Journal Year:
2024,
Volume and Issue:
59(11), P. 3074 - 3092
Published: April 5, 2024
Focal
structural
damage
to
white
matter
tracts
can
result
in
functional
deficits
stroke
patients.
Traditional
voxel-based
lesion-symptom
mapping
is
commonly
used
localize
brain
structures
linked
neurological
deficits.
Emerging
evidence
suggests
that
the
impact
of
focal
may
extend
beyond
immediate
lesion
sites.
In
this
study,
we
present
a
disconnectome
approach
based
on
support
vector
regression
(SVR)
identify
and
pathways
associated
with
For
clinical
validation,
utilized
imaging
data
from
340
patients
exhibiting
motor
A
map
was
initially
derived
lesions
for
each
patient.
Bootstrap
sampling
then
employed
balance
sample
size
between
minority
group
right
or
left
those
without
Subsequently,
SVR
analysis
voxels
(p
<
.005).
Our
disconnectome-based
significantly
outperformed
alternative
approaches
identifying
major
within
corticospinal
upper-lower
limb
Bootstrapping
increased
sensitivity
(80%-87%)
deficits,
minimum
32
235
mm
Language: Английский
Post-Stroke Outcome prediction based on lesion-derived features
Maedeh Khalilian,
No information about this author
Olivier Godefroy,
No information about this author
Martine Roussel
No information about this author
et al.
NeuroImage Clinical,
Journal Year:
2025,
Volume and Issue:
unknown, P. 103747 - 103747
Published: Jan. 1, 2025
Language: Английский
Aperiodic component of EEG power spectrum and cognitive performance are modulated by education in aging
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: July 2, 2024
Abstract
Recent
studies
have
shown
a
growing
interest
in
the
so-called
“aperiodic”
component
of
EEG
power
spectrum,
which
describes
overall
trend
whole
spectrum
with
linear
or
exponential
function.
In
field
brain
aging,
this
aperiodic
is
associated
both
age-related
changes
and
performance
on
cognitive
tasks.
This
study
aims
to
elucidate
potential
role
education
moderating
relationship
between
resting-state
features
(including
component)
aging.
N
=
179
healthy
participants
“Leipzig
Study
for
Mind–Body-Emotion
Interactions”
(LEMON)
dataset
were
divided
into
three
groups
based
age
education.
Older
adults
exhibited
lower
exponent,
offset
(i.e.
measures
component),
Individual
Alpha
Peak
Frequency
(IAPF)
as
compared
younger
adults.
Moreover,
visual
attention
working
memory
differently
depending
education:
older
high
education,
higher
exponent
predicted
slower
processing
speed
less
capacity,
while
an
opposite
was
found
those
low
While
further
investigation
needed,
shows
modulatory
aging
cognition.
Language: Английский
Enhanced ADHD classification through deep learning and dynamic resting state fMRI analysis
MohammadHadi Firouzi,
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Kamran Kazemi,
No information about this author
Maliheh Ahmadi
No information about this author
et al.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Oct. 18, 2024
Attention
Deficit
Hyperactivity
Disorder
(ADHD)
is
characterized
by
deficits
in
attention,
hyperactivity,
and/or
impulsivity.
Resting-state
functional
connectivity
analysis
has
emerged
as
a
promising
approach
for
ADHD
classification
using
resting-state
magnetic
resonance
imaging
(rs-fMRI),
although
with
limited
accuracy.
Recent
studies
have
highlighted
dynamic
changes
patterns
among
children.
In
this
study,
we
introduce
Skip-Vote-Net,
novel
deep
learning-based
network
designed
classifying
from
typically
developing
children
(TDC)
leveraging
on
rs-fMRI
data
collected
222
participants
included
the
NYU
dataset
within
ADHD-200
database.
Initially,
each
subject,
matrices
were
constructed
overlapping
segments
Pearson's
correlation
between
mean
time
series
of
116
regions
interest
defined
Automated
Anatomical
Labeling
(AAL)
atlas.
Skip-Vote-Net
was
then
developed,
employing
majority
voting
mechanism
to
classify
ADHD/TDC
children,
well
distinguishing
two
main
subtypes:
inattentive
subtype
(ADHDI)
and
predominantly
combined
(ADHDC).
The
proposed
method
evaluated
across
four
scenarios:
(1)
two-class
TD
balanced
data,
(2)
unbalanced
(3)
ADHDI
ADHDC,
(4)
three-class
ADHDI,
Using
achieved
accuracies
97%
±
1.87
97.7%
2.2
cases,
respectively.
Furthermore,
accuracy
discriminating
ADHDC
reached
99.4%
1.21.
Finally,
demonstrated
an
average
98.86%
1.03
collectively.
Our
findings
highlight
superior
performance
over
existing
methods
ADHD,
showcasing
its
potential
effective
diagnostic
tool
identifying
subtypes
Language: Английский