Brain Sciences,
Journal Year:
2023,
Volume and Issue:
13(11), P. 1601 - 1601
Published: Nov. 17, 2023
Interhemispheric
and
frontoparietal
functional
connectivity
have
been
reported
to
increase
during
explicit
information
processing.
However,
it
is
unclear
how
when
interhemispheric
interact
semantic
Here,
we
tested
the
neural
coupling
hypothesis
that
processing
promotes
activity
in
nondominant
right
hemispheric
areas,
owing
synchronization
with
enhanced
at
later
stages.
We
analyzed
electroencephalogram
data
obtained
using
a
priming
paradigm,
which
comprised
visual
target
words
successively
presented
under
direct
or
indirect
attention
association.
Scalp
potential
analysis
demonstrated
of
congruent
targets
reduced
negative
event-related
potentials,
as
previously
reported.
Current
source
density
showed
activated
temporal
area
intervals.
Subsequent
dynamic
analyses
revealed
increased
correlation
between
activities
These
findings
indicate
increases
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 21, 2024
Abstract
Persistent
developmental
stuttering
(PDS),
known
as
childhood-onset
speech
fluency
disorder
involves,
significant
involuntary
problems
in
normal
such
repetition
and
prolongation
of
sounds,
syllables,
or
words,
well
silence
for
certain
syllables
pauses
within
a
word.
Given
the
significance
brain
morphological
abnormalities
unraveling
origins
various
neurological
disorders,
scientific
community
has
displayed
longstanding
fascination
with
advancement
structural
neuroimaging
methods
like
voxel-based
morphometry
(VBM).
Despite
numerous
investigations
using
techniques
to
examine
alterations
structure
associated
stuttering,
precise
regions
predominantly
affected
by
this
remain
unclear.
Here,
adults
PDS
(n
=
15)
fluent
speakers
carefully
matched
based
on
age,
sex,
education,
hand
preference
were
examined
utilizing
MRI
scans
detect
possible
volumetric
group
compared
healthy
control
group.
Using
whole-brain
VBM
technique,
brains
subjects
concerning
grey
matter
(GM)
white
(WM)
volume
differences.
Our
investigation
revealed
reduction
WM
cerebellum.
Moreover,
we
observed
increased
GM
volumes
two
specific
regions:
right
Superior
Frontal
Gyrus
(SFG)
left
Middle
Temporal
(MTG).
Conversely,
decrease
was
SFG,
bilateral
paracentral
lobule,
cuneus
These
findings
strengthen
potential
structures
persistent
stuttering.
Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 8
Published: Oct. 3, 2024
ABSTRACT
Objective:
Language
is
one
of
the
most
celebrated
hallmarks
human
cognition.
With
continuous
improvement
medical
technology,
functional
MRI
(fMRI)
has
been
used
in
aphasia.
Although
many
related
studies
have
carried
out,
not
extensively
focused
on
brain
regions
with
reduced
activation
aphasic
patients.
The
aim
this
study
was
to
identify
normally
activated
healthy
controls
but
patients
during
fMRI
language
tasks.
Methods:
We
collected
all
previous
task-state
secondary
showed
normal
and
were
conducted
likelihood
estimation
(ALE)
meta-analysis
obtain
consistently
Results:
ALE
revealed
that
left
inferior
frontal
gyrus,
middle
temporal
superior
fusiform
lentiform
nucleus
culmen
cerebellum
Discussion:
These
findings
from
significant
implications
for
understanding
network
potential
recovery
functions
individuals
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 11, 2024
Abstract
Cognitive
task
performance
can
be
supported
through
multiple
neural
pathways,
a
concept
referred
to
as
brain
degeneracy.
We
used
novel
approach
consider
degeneracy
during
visual
short-term
memory
(VSTM)
across
the
adult
lifespan
in
Cam-CAN
study
(n
=
113,
23-87
years
old).
Our
main
goal
was
identify
subgroups
of
participants
whose
VSTM
characterized
by
distinct
activation
patterns.
First,
we
identified
seven
modules
that
responded
similarly
and
resembled
previously
functional
networks
(adjusted
mutual
information
[aMI]
0.45).
Subsequently,
latent
profile
analysis
revealed
four
participants.
Each
subgroup
different
recruitment
patterns
these
modules,
predominantly
frontal
control
module
(FCM),
(VM),
default
mode
(DMM).
Subgroups
did
not
differ
demographics
or
performance.
However,
associations
between
activity
varied
subgroups,
particularly
FCM,
suggesting
individuals
may
use
cognitive
operations
perform
task.
Further
analyses
group
differences
white
matter
integrity,
mostly
uncinate
fasciculus,
suggested
individual
structural
properties
shape
Altogether,
our
contributes
understanding
how
pathways
could
underlie
S S Korsakov Journal of Neurology and Psychiatry,
Journal Year:
2024,
Volume and Issue:
124(12), P. 27 - 27
Published: Jan. 1, 2024
To
investigate
the
structural
damage
in
patients
with
aphasia
acute
phase
of
ischemic
stroke
using
X-ray
computed
tomography
(CT)
scans
brain.
We
examined
65
right-handed
individuals
stage
left
middle
cerebral
artery,
including
39
men
and
26
women
aged
41
to
87
years.
The
were
divided
into
two
groups:
those
(group
1,
n=48)
without
2,
n=17).
All
participants
underwent
head
CT
on
first
day
hospitalization
again
24
48
hours
later,
as
well
angiography
intracranial
brachiocephalic
arteries.
Atherothrombotic
cardioembolic
pathogenic
subtypes
significantly
more
common
group
while
lacunar
2
(χ2=13.608,
p=0.004).
Most
had
a
mild
moderate
stroke,
but
severity
degree
disability
greater
1.
There
was
also
significant
difference
size
infarction
(25.7±19.9
versus
3.1±3.5
cm³,
p<0.001).
More
than
75%
1
lesions
speech
representation
areas
adjacent
regions
cortex,
90%
involvement
network
tracts
within
zone
(compared
0
11.8%
respectively,
results
confirm
role
disorders
level
after
stroke.
significance
both
cortical
representations
conductors
is
shown.
This
can
affect
prognosis
for
function
restoration,
allowing
personalized
modeling
rehabilitation
program
these
patients.
Interhemispheric
and
frontoparietal
functional
connectivity
have
been
reported
to
increase
during
explicit
information
processing.
However,
it
is
unclear
how
when
interhemispheric
interact
semantic
Here,
we
tested
the
neural
coupling
hypothesis
that
processing
promotes
activity
in
nondominant
right
hemispheric
areas
owing
synchronization
with
enhanced
at
later
stages.
We
analyzed
electroencephalogram
data
obtained
using
a
priming
paradigm,
which
comprised
visual
target
words
successively
presented
under
direct
or
indirect
attention
association.
Scalp
potential
analysis
demonstrated
of
congruent
targets
reduced
negative
event-related
potentials,
as
previously
reported.
Current
source
density
showed
activated
temporal
area
intervals.
Sub-sequent
dynamic
analyses
current
revealed
increased
correlation
between
activities
These
findings
indicate
increases
stages
Interhemispheric
and
frontoparietal
functional
connectivity
have
been
reported
to
increase
during
explicit
information
processing.
However,
it
is
unclear
how
when
interhemispheric
interact
semantic
Here,
we
tested
the
neural
coupling
hypothesis
that
processing
promotes
activity
in
nondominant
right
hemispheric
areas
owing
synchronization
with
enhanced
at
later
stages.
We
analyzed
electroencephalogram
data
obtained
using
a
priming
paradigm,
which
comprised
visual
target
words
successively
presented
under
direct
or
indirect
attention
association.
Scalp
potential
analysis
demonstrated
of
congruent
targets
reduced
negative
event-related
potentials,
as
previously
reported.
Current
source
density
showed
activated
temporal
area
intervals.
Subsequent
dynamic
analyses
revealed
increased
correlation
between
activities
These
findings
indicate
increases
Interhemispheric
and
frontoparietal
functional
connectivity
have
been
reported
to
increase
during
explicit
information
processing.
However,
it
is
unclear
how
when
interhemispheric
interact
semantic
Here,
we
tested
the
neural
coupling
hypothesis
that
processing
promotes
activity
in
nondominant
right
hemispheric
areas
owing
synchronization
with
enhanced
at
later
stages.
We
analyzed
electroencephalogram
data
obtained
using
a
priming
paradigm,
which
comprised
visual
target
words
successively
presented
under
direct
or
indirect
attention
association.
Scalp
potential
analysis
demonstrated
of
congruent
targets
reduced
negative
event-related
potentials,
as
previously
reported.
Current
source
density
showed
activated
temporal
area
intervals.
Subsequent
dynamic
analyses
revealed
increased
correlation
between
activities
These
findings
indicate
increases
