2021 IEEE International Conference on Bioinformatics and Biomedicine (BIBM),
Journal Year:
2023,
Volume and Issue:
40, P. 2527 - 2527
Published: Dec. 5, 2023
Major
depressive
disorder
(MDD)
which
is
a
widespread
worldwide
cause
disruption
in
some
brain
functions
and
thus
leads
to
network
changes.
An
increasing
number
of
clinical
cognitive
neuroscience
studies
have
used
broadband
EEG
microstate
method
assess
the
electrical
activity
large-scale
cortical
networks;
however,
topographic
frequency
patterns
different
categories
MDD
patients
are
not
clear.
In
this
study,
spectra
were
analyzed
using
5-min
resting-state
electroencephalography
(EEG)
data
from
55
subjects
(including
27
28
healthy
controls)
with
variational
empirical
mode
decomposition
Hilbert-Huang
transform.
The
results
showed
that
D
other
microstates
(A,
C,
E)
display
opposite
patterns.
Most
specifically,
beta
band,
marginal
spectral
energies
A,
E
increased
compared
HCs,
while
energy
was
decreased.
Meanwhile,
we
observed
A
C
band
positively
correlated
severity
symptoms,
suggesting
alterations
can
serve
as
an
important
reference
for
disease
progression.
These
confirm
abnormalities
beta-band
patient
provide
new
perspective
exploring
psychomotor
function
MDD.
European Journal of Neuroscience,
Journal Year:
2024,
Volume and Issue:
59(7), P. 1753 - 1769
Published: Jan. 14, 2024
Abstract
The
present
study
aimed
to
investigate
the
spontaneous
dynamics
of
large‐scale
brain
networks
underlying
mindfulness
as
a
dispositional
trait,
through
resting‐state
electroencephalography
(EEG)
microstates
analysis.
Eighteen
participants
had
attended
standardized
mindfulness‐based
stress
reduction
training
(MBSR),
and
18
matched
waitlist
individuals
(CTRL)
were
recorded
at
rest
while
they
passively
exposed
auditory
stimuli.
Participants'
traits
assessed
with
Five
Facet
Mindfulness
Questionnaire
(FFMQ).
To
further
explore
relationship
between
microstate
traits,
also
asked
rate
their
experience
according
five
phenomenal
dimensions.
After
training,
MBSR
showed
highly
significant
increase
in
FFMQ
score,
well
higher
observing
non‐reactivity
sub‐scores
than
CTRL
participants.
Microstate
analysis
revealed
four
classes
(A–D)
global
clustering
across
all
subjects.
group
lower
duration,
occurrence
coverage
C
control
group.
Moreover,
these
parameters
negatively
correlated
participants,
whereas
A
was
total
score.
Further
participants'
self‐reports
suggested
that
better
sensory‐affective
integration
interferences.
In
line
previous
studies,
our
results
suggest
temporal
underlie
specifically
trait
mindfulness.
These
findings
encourage
research
into
evaluation
monitoring
impact
interventions
on
mental
health
well‐being
individuals.
Frontiers in Neuroscience,
Journal Year:
2023,
Volume and Issue:
17
Published: Dec. 14, 2023
Introduction
At
present,
elucidating
the
cortical
origin
of
EEG
microstates
is
a
research
hotspot
in
field
EEG.
Previous
studies
have
suggested
that
prefrontal
cortex
closely
related
to
microstate
C
and
D,
but
whether
there
causal
link
between
or
D
remains
unclear.
Methods
In
this
study,
pretrial
data
were
collected
from
ten
patients
with
lesions
(mainly
located
inferior
middle
frontal
gyrus)
fourteen
matched
healthy
controls,
analysis
was
applied.
Results
Our
results
showed
four
classical
topographies
obtained
both
groups,
topography
patient
group
obviously
abnormal.
Compared
average
coverage
occurrence
significantly
reduced.
addition,
transition
probability
A
B
lower
than
those
controls.
Discussion
The
above
demonstrated
damage
especially
gyrus
could
lead
abnormalities
spatial
distribution
temporal
dynamics
not
showing
C.
significance
our
findings
lies
providing
new
evidence
for
Psychophysiology,
Journal Year:
2024,
Volume and Issue:
61(8)
Published: April 9, 2024
Abstract
Oxytocin
(OXT)
modulates
social
behaviors.
However,
the
administration
of
exogenous
OXT
in
humans
produces
inconsistent
behavioral
changes,
affecting
future
consideration
as
a
treatment
for
autism
and
other
disorders
with
symptoms.
Inter‐individual
variability
functioning
traits
might
play
key
role
how
changes
brain
activity
and,
therefore,
behavior.
Here,
we
investigated
if
inter‐individual
dictate
single‐dose
intranasal
(IN‐OXT)
spontaneous
neural
during
eyes‐open
resting
state.
We
used
double‐blinded,
randomized,
placebo‐controlled,
cross‐over
design
on
30
typically
developing
young
adult
men
to
investigate
dynamics
EEG
microstates
corresponding
defined
networks.
confirmed
previous
reports
that,
at
group
level,
IN‐OXT
increases
representation
attention
salience
microstates.
Furthermore,
identified
decreased
associated
default
mode
network.
Using
multivariate
partial
least
square
statistical
analysis,
found
that
IN‐OXT‐induced
microstate
specific
spectral
bands.
Correlation
analysis
further
revealed
higher
functioning,
more
increased
appearance
visual
network‐associated
microstate,
suppressed
network‐related
microstate.
The
lower
effects
report
support
hypothesis
regulates
behavior
by
enhancing
salience.
Moreover,
our
findings
indicate
modulate
responses
could
partially
explain
effects.
Frontiers in Psychology,
Journal Year:
2024,
Volume and Issue:
15
Published: May 24, 2024
Introduction
This
study
aims
to
explore
the
temporal
dynamics
of
brain
networks
involved
in
self-generated
affective
states,
specifically
focusing
on
modulating
these
states
both
positive
and
negative
valences.
The
overarching
goal
is
contribute
a
deeper
understanding
neurodynamic
patterns
associated
with
regulation,
potentially
informing
development
biomarkers
for
therapeutic
interventions
mood
anxiety
disorders.
Methods
Utilizing
EEG
microstate
analysis
during
we
investigated
five
distinct
microstates
across
different
conditions,
including
baseline
resting
state
valence
(e.g.,
awe,
contentment)
anger,
fear).
Results
revealed
noteworthy
modulations
states.
Additionally,
valence-specific
mechanisms
spontaneous
regulation
were
identified.
Negative
characterized
by
heightened
presence
attention-associated
reduced
occurrence
salience-related
In
contrast,
manifested
prevalence
related
visual/autobiographical
memory
auditory/language-associated
compared
Discussion
contributes
field
employing
discern
Insights
from
this
research
carry
significant
implications
regulation.
identification
has
potential
applications
developing
disorders,
offering
novel
avenues
interventions.
