Brain connectivity in frailty: Insights from The Irish Longitudinal Study on Ageing (TILDA)
Neurobiology of Aging,
Journal Year:
2023,
Volume and Issue:
124, P. 1 - 10
Published: Jan. 7, 2023
Frailty
in
older
adults
is
associated
with
greater
risk
of
cognitive
decline.
Brain
connectivity
insights
could
help
understand
the
association,
but
studies
are
lacking.
We
applied
connectome-based
predictive
modeling
to
a
32-item
self-reported
Index
(FI)
using
resting
state
functional
MRI
data
from
The
Irish
Longitudinal
Study
on
Ageing.
A
total
347
participants
were
included
(48.9%
male,
mean
age
68.2
years).
From
modeling,
we
obtained
204
edges
that
positively
correlated
FI
and
composed
"frailty
network"
characterised
by
visual
network
(right);
188
negatively
formed
"robustness
characterized
basal
ganglia.
Both
networks'
highest
degree
node
was
caudate
different
patterns:
frailty
network;
default
mode
robustness
network.
walking
speed
not
metrics
global
cognition,
reinforcing
matching
between
brain
pattern
found
(main
predicted
ganglia).
Language: Английский
A generalizable connectome-based marker of in-scan sustained attention in neurodiverse youth
Cerebral Cortex,
Journal Year:
2022,
Volume and Issue:
33(10), P. 6320 - 6334
Published: Dec. 27, 2022
Abstract
Difficulty
with
attention
is
an
important
symptom
in
many
conditions
psychiatry,
including
neurodiverse
such
as
autism.
There
a
need
to
better
understand
the
neurobiological
correlates
of
and
leverage
these
findings
healthcare
settings.
Nevertheless,
it
remains
unclear
if
possible
build
dimensional
predictive
models
attentional
state
sample
that
includes
participants
conditions.
Here,
we
use
5
datasets
identify
validate
functional
connectome-based
markers
attention.
In
dataset
1,
modeling
observe
successful
prediction
performance
on
in-scan
sustained
task
youth,
condition.
The
predictions
are
not
driven
by
confounds,
head
motion.
2,
find
network
model
defined
1
generalizes
predict
separate
neurotypical
performing
same
task.
3–5,
identification
longitudinal
scans
probe
stability
across
months
years
individual
participants.
Our
results
help
elucidate
brain
youth
support
further
development
other
clinically
relevant
phenotypes.
Language: Английский
A generalizable connectome-based marker of in-scan sustained attention in neurodiverse youth
medRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: July 25, 2022
Abstract
Difficulty
with
attention
is
an
important
symptom
in
many
conditions
psychiatry,
including
neurodiverse
such
as
autism.
There
a
need
to
better
understand
the
neurobiological
correlates
of
and
leverage
these
findings
for
individuals
healthcare
settings.
Nevertheless,
it
remains
unclear
if
possible
build
robust
dimensional
predictive
models
populations.
Here,
we
use
five
datasets
identify
validate
functional
connectome-based
markers
attention.
In
dataset
one,
modelling
observe
successful
prediction
performance
on
in-scan
sustained
task
sample
youth.
The
predictions
are
not
driven
by
confounds,
head
motion.
two,
find
network
model
defined
one
generalizes
predict
separate
neurotypical
participants
performing
same
task.
three
five,
identification
longitudinal
scans
probe
stability
across
months
years
individual
participants.
Our
results
help
elucidate
brain
youth
support
further
development
other
clinically-relevant
phenotypes.
Language: Английский