bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: Dec. 24, 2022
Abstract
The
role
of
oxytocin
(OT)
in
social
behavior
and
brain
networks
has
been
widely
documented.
However,
the
effect
OT
on
association
between
functional
connectivity
(FC)
is
yet
to
be
comprehensively
explored.
In
this
study,
using
a
face-perception
task
multiple
connectome-based
predictive
(CPM)
models,
we
aimed
to:
1)
determine
whether
could
enhance
behavioral
performance,
resting-state
(rsFC),
task-state
(tsFC),
2)
if
so,
enhancing
triangular
association.
We
found
that
both
rsFC
tsFC
independently
significantly
predict
performance
group,
but
not
placebo
(PL)
group.
addition,
correlation
coefficient
was
substantially
higher
group
than
PL
strength
these
associations
partly
explained
by
altering
brain’s
FCs
related
cognition
resting
states,
mainly
regions
such
as
limbic
system,
prefrontal
cortex
(PFC),
temporal
poles
(TP),
temporoparietal
junction
(TPJ).
Together,
results
suggest
neuropeptides
can
increase
consistency
individual
differences
different
modalities
(e.g.,
level
data).
European Journal of Neuroscience,
Journal Year:
2022,
Volume and Issue:
57(3), P. 490 - 510
Published: Dec. 13, 2022
Cognitive
reserve
supports
cognitive
function
in
the
presence
of
pathology
or
atrophy.
Functional
neuroimaging
may
enable
direct
and
accurate
measurement
which
could
have
considerable
clinical
potential.
The
present
study
aimed
to
develop
validate
a
measure
using
task-based
fMRI
data
that
then
be
applied
independent
resting-state
data.
Connectome-based
predictive
modelling
with
leave-one-out
cross-validation
was
predict
residual
functional
connectivity
from
Reserve/Reference
Ability
Neural
Network
studies
(n
=
220,
mean
age
51.91
years,
SD
17.04
years).
This
model
generated
summary
measures
strength
accurately
predicted
unseen
participants.
theoretical
validity
these
established
via
positive
correlation
socio-behavioural
proxy
(verbal
intelligence)
global
cognition,
brain
structure.
fitted
external
test
data:
Irish
Longitudinal
Study
on
Ageing
(TILDA,
n
294,
68.3
7.18
network-strength
were
not
positively
associated
nor
verbal
intelligence
cognition.
demonstrated
can
used
generate
theoretically
valid
reserve.
Further
work
is
needed
establish
if,
how,
derived
Journal of Clinical and Experimental Neuropsychology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 16
Published: April 27, 2025
Mind
wandering
decreases
in
healthy
aging,
and
some
cases,
it
is
further
reduced
Alzheimer
disease
(AD).
However,
little
known
about
how
mind
changes
during
the
preclinical
phase
of
AD,
which
a
critical
period
for
intervention.
The
present
study
aims
to
provide
novel
evidence
utility
objective
subjective
measures
evaluating
risk
developing
cognitive
impairment
their
association
with
AD
biomarkers.
Participants
(N
=
504;
Mage
69.54
years,
SDage
8.95
years)
completed
Sustained
Attention
Response
Task
(SART).
We
calculated
(reaction
time
coefficient
variation;
RT
CoV)
(self-reported
frequency
off-task
thoughts)
SART
participants
who
remained
cognitively
stable
349)
those
eventually
developed
(progressors;
N
155).
A
subset
211)
annually
had
recent
CSF
Objective
significantly
differed
between
progressors
at
baseline
predicted
likelihoods
progression.
Moreover,
progression
beyond
standard
neuropsychological
measures.
Longitudinal
models
indicated
that
biomarker
negative,
but
not
positive,
showed
significant
reduction
CoV
over
time,
possibly
reflecting
practice-related
performance.
There
were
no
longitudinal
associations
wandering.
common
activity
may
reflect
system
older
age.
Subjective
be
useful
predicting
later
onset
impairment,
while
more
sensitive
changes.
GeroScience,
Journal Year:
2023,
Volume and Issue:
46(1), P. 283 - 308
Published: June 13, 2023
Abstract
Differences
in
brain
structure
and
functional
structural
network
architecture
have
been
found
to
partly
explain
cognitive
performance
differences
older
ages.
Thus,
they
may
serve
as
potential
markers
for
these
differences.
Initial
unimodal
studies,
however,
reported
mixed
prediction
results
of
selective
variables
based
on
features
using
machine
learning
(ML).
the
aim
current
study
was
investigate
general
validity
from
imaging
data
healthy
adults.
In
particular,
focus
with
examining
whether
(1)
multimodal
information,
i.e.,
region-wise
grey
matter
volume
(GMV),
resting-state
connectivity
(RSFC),
(SC)
estimates,
improve
predictability
targets,
(2)
arise
global
cognition
distinct
profiles,
(3)
generalize
across
different
ML
approaches
594
adults
(age
range:
55–85
years)
1000BRAINS
study.
Prediction
examined
each
modality
all
combinations,
without
confound
(i.e.,
age,
education,
sex)
regression
analytic
options,
variations
algorithms,
feature
sets,
concatenation
vs.
stacking).
Results
showed
that
differed
considerably
between
deconfounding
strategies.
absence
demographic
confounder
control,
successful
could
be
observed
choices.
Combination
modalities
tended
marginally
compared
single
modalities.
Importantly,
previously
described
effects
vanished
strict
control
condition.
Despite
a
small
trend
benefit,
developing
biomarker
aging
remains
challenging.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 10, 2024
Abstract
Network
neuroscience
investigates
the
brain’s
connectome,
revealing
that
cognitive
functions
are
underpinned
by
dynamic
neural
networks.
This
study
how
distinct
abilities—working
memory
and
inhibition—are
supported
unique
brain
network
configurations,
which
constructed
estimating
whole-brain
networks
through
mutual
information.
The
involved
195
participants
who
completed
Sternberg
Item
Recognition
Flanker
tasks
while
undergoing
EEG
recording.
A
mixed-effects
linear
model
analyzed
influence
of
metrics
on
performance,
considering
individual
differences
task-specific
dynamics.
Results
indicate
working
inhibition
associated
with
different
attributes,
relying
distributed
more
segregated
ones.
Our
analysis
suggests
both
strong
weak
connections
contribute
to
processes,
as
could
potentially
lead
a
stable
support
inhibition.
findings
indirectly
Neuroscience
Theory
Intelligence,
suggesting
functional
topology
inherent
various
functions.
Nevertheless,
we
propose
understanding
variations
in
abilities
requires
recognizing
shared
processes
within
Author
summary
analyzes
correspond
patterns
constructing
via
information
from
data
subjects
performing
tasks.
Findings
reveal
is
depends
research
underscores
importance
function
supports
notion
emerge
topology.
Moreover,
it
highlights
need
account
for
fully
grasp
diverse
dynamics
influencing
abilities.
The
default
mode
network
(DMN)
is
intricately
linked
with
processes
such
as
self-referential
thinking,
episodic
memory
recall,
self-projection,
and
understanding
the
mindset
of
others.
Over
recent
years,
there
has
been
a
surge
in
examining
its
functional
connectivity,
particularly
antagonistic
relationship
frontoparietal
networks
(FPN)
involved
top-down
attention,
executive
function,
cognitive
control.
Notably,
DMN
demonstrates
an
anti-correlated
connection
FPN
Dorsal
Attention
Network
(DAN),
leading
to
deactivation
when
one's
attention
turned
towards
external
environment.
fluidity
switching
between
these
internal
modes
processing—highlighted
by
this
connectivity—has
proposed
indicator
health
mediated
salience
(SAL).
Due
ease
estimation
connectivity-based
measures
through
resting
state
fMRI
paradigms,
now
wealth
large-scale
datasets,
paving
way
for
standardized
connectivity
benchmarks.
This
review
delves
into
promising
role
metrics
potential
biomarkers
across
mind
wandering
meditation
states,
investigating
deviations
clinical
conditions
anxiety,
depression,
ADHD,
PTSD
Additionally,
we
tackle
issue
reliability
share
recommendations
using
biomarker
health.
Journal of Cognitive Neuroscience,
Journal Year:
2024,
Volume and Issue:
36(9), P. 2029 - 2044
Published: Jan. 1, 2024
Abstract
Mind
wandering
is
typically
characterized
as
a
failure
of
attentional
control,
yet
despite
age-related
executive
function
deficits,
older
adults
report
less
mind
than
younger
during
cognitive
tasks
and
in
daily
life.
Self-reported
episodes
usually
result
similar
behavioral
detriments
(e.g.,
greater
RT
variability,
more
task
errors).
However,
the
relatively
few
studies
investigating
neural
correlates
aging
have
revealed
mixed
findings,
possibly
because
they
rely
on
infrequent
thought
probes
and,
therefore,
trials
for
analyses.
In
current
study,
we
propose
method
to
recover
data
by
categorizing
from
commonly
used
sustained
attention
response
according
variability.
Behavioral
(n
=
49
younger;
n
40
older)
that
compared
with
adults,
reported
fewer
episodes,
but
showed
impacts
thereof.
Furthermore,
both
age
groups,
subjective
reports
predicted
objective
sorting
into
“on-”
“off-task”
Using
these
objectively
sorted
trials,
investigated
two
EEG
measures
(diminished
P1
P3
amplitude)
26
24
adults.
Although
did
not
differ
between
on-
off-task
either
group,
was
diminished
groups
(albeit
significantly
adults)
suggesting
preserved
perceptual
reduced
higher-order
processing
periods
groups.
Human Brain Mapping,
Journal Year:
2023,
Volume and Issue:
44(17), P. 6074 - 6089
Published: Sept. 29, 2023
Considerable
advances
in
the
role
of
oxytocin
(OT)
effect
on
behavior
and
brain
network
have
been
made,
but
OT
association
between
inter-individual
differences
functional
connectivity
(FC)
is
elusive.
Here,
by
using
a
face-perception
task
multiple
connectome-based
predictive
models,
we
aimed
to
(1)
determine
whether
could
enhance
among
behavioral
performance,
resting-state
FC
(rsFC),
task-state
(tsFC)
(2)
if
so,
explore
enhancing
this
triangular
association.
We
found
that
group,
prediction
performance
rsFC
or
tsFC
predict
was
higher
than
PL
group.
Additionally,
correlation
coefficient
substantially
group
The
strength
these
associations
be
partly
explained
altering
brain's
FCs
related
social
cognition
face
perception
both
resting
states,
mainly
regions
such
as
limbic
system,
prefrontal
cortex,
temporal
poles,
temporoparietal
junction.
Taken
together,
results
provide
novel
evidence
corresponding
mechanism
for
how
neuropeptides
cause
increased
across
different
levels
(e.g.,
large-scale
networks
task-state),
may
inspire
future
research
cross
clinical
nonclinical
use.
Network Neuroscience,
Journal Year:
2024,
Volume and Issue:
8(3), P. 697 - 713
Published: Jan. 1, 2024
Promising
evidence
has
suggested
potential
links
between
mind-wandering
and
Alzheimer's
disease
(AD).
Yet,
older
adults
with
diagnosable
neurocognitive
disorders
show
reduced
meta-awareness,
thus
questioning
the
validity
of
probe-assessed
in
adults.
In
prior
work,
we
employed
response
time
variability
as
an
objective,
albeit
indirect,
marker
to
identify
patterns
functional
connectivity
that
predicted
mind-wandering.
current
study,
evaluated
association
this
connectome-based,
model
cerebral
spinal
fluid
(CSF)
p-tau/A