Frontiers in Psychiatry,
Journal Year:
2023,
Volume and Issue:
14
Published: April 17, 2023
Childhood
trauma
(CT)
is
a
known
risk
factor
for
major
depressive
disorder
(MDD),
but
the
mechanisms
linking
CT
and
MDD
remain
unknown.
The
purpose
of
this
study
was
to
examine
influence
depression
diagnosis
on
subregions
anterior
cingulate
cortex
(ACC)
in
patients.The
functional
connectivity
(FC)
ACC
evaluated
60
first-episode,
drug-naïve
patients
(40
with
moderate-to-severe
20
no
or
low
CT),
78
healthy
controls
(HC)
(19
59
CT).
correlations
between
anomalous
FC
severity
symptoms
were
investigated.Individuals
moderate-to
severe
exhibited
increased
caudal
middle
frontal
gyrus
(MFG)
than
individuals
CT,
regardless
diagnosis.
showed
lower
dorsal
superior
(SFG)
MFG.
They
also
subgenual/perigenual
temporal
(MTG)
angular
(ANG)
HCs,
severity.
left
MFG
mediated
correlation
Trauma
Questionnaire
(CTQ)
total
score
HAMD-cognitive
patients.Functional
changes
MDD.
These
findings
contribute
our
understanding
neuroimaging
Psychological Medicine,
Journal Year:
2025,
Volume and Issue:
55
Published: Jan. 1, 2025
Abstract
Background
Depression
has
been
linked
to
disruptions
in
resting-state
networks
(RSNs).
However,
inconsistent
findings
on
RSN
disruptions,
with
variations
reported
connectivity
within
and
between
RSNs,
complicate
the
understanding
of
neurobiological
mechanisms
underlying
depression.
Methods
A
systematic
literature
search
PubMed
Web
Science
identified
studies
that
employed
functional
magnetic
resonance
imaging
(fMRI)
explore
changes
Studies
using
seed-based
analysis
or
independent
component
were
included,
coordinate-based
meta-analyses
performed
evaluate
alterations
both
networks.
Results
total
58
comprising
2321
patients
depression
2197
healthy
controls.
The
meta-analysis
revealed
significant
connectivity,
networks,
compared
Specifically,
within-network
included
increased
decreased
default
mode
network
(DMN)
frontoparietal
(FPN).
Between-network
showed
DMN–FPN
limbic
(LN)–DMN
DMN–somatomotor
LN–FPN
varied
ventral
attention
(VAN)–dorsal
attentional
(DAN)
connectivity.
Additionally,
a
positive
correlation
was
found
illness
duration
VAN
DAN.
Conclusions
These
not
only
provide
comprehensive
characterization
but
also
enhance
our
Frontiers in Aging Neuroscience,
Journal Year:
2025,
Volume and Issue:
17
Published: March 28, 2025
There
is
a
huge
heterogeneity
of
magnetic
resonance
imaging
findings
in
Parkinson's
disease
(PD)
with
impulse
control
disorders
(ICDs)
studies.
Here,
we
hypothesized
that
brain
regions
identified
by
structural
and
functional
studies
PD
ICDs
could
be
reconciled
common
network.
In
this
study,
an
initial
systematic
literature
review
was
conducted
to
collect
evaluate
whole-brain
related
ICDs.
We
subsequently
utilized
the
Human
Connectome
Project
(HCP)
dataset
(n
=
1,093)
novel
connectivity
network
mapping
(FCNM)
technique
identify
affected
A
total
19
25
contrasts,
incorporating
345
individuals
ICDs,
787
without
were
included
analysis.
By
using
HCP
FCNM
technique,
ultimately
aberrant
neural
networks
predominantly
involve
default
mode
(middle
inferior
temporal
gyrus,
anterior
cingulate
cortex,
angular
gyrus)
subcortical
(caudate
nucleus).
This
study
suggests
heterogeneous
neuroimaging
can
attributed
shared
abnormalities
networks.
These
dysfunctions
are
associated
impaired
self-regulation,
decision-making,
heightened
impulsivity
Our
integrate
diverse
results
from
previous
studies,
providing
clearer
understanding
neurobiological
mechanisms
underlying
at
level.
Frontiers in Psychiatry,
Journal Year:
2023,
Volume and Issue:
14
Published: April 5, 2023
Major
depressive
disorder
(MDD)
is
a
disabling
and
severe
psychiatric
with
high
rate
of
prevalence,
adolescence
one
the
most
probable
periods
for
first
onset.
The
neurobiological
mechanism
underlying
adolescent
MDD
remains
unexplored.In
this
study,
we
examined
cortical
subcortical
alterations
neuroanatomical
structures
spontaneous
functional
activation
in
50
unmedicated
adolescents
vs.
39
healthy
controls
through
combined
structural
resting-state
magnetic
resonance
imaging.Significantly
altered
regional
gray
matter
volume
was
found
at
broader
frontal-temporal-parietal
brain
areas
involved
various
forms
information
processing
MDD.
Specifically,
increased
GM
left
paracentral
lobule
right
supplementary
motor
cortex
significantly
correlated
depression
severity
Furthermore,
lower
thickness
responsible
visual
auditory
as
well
movements
superior
premotor
subdivision
positively
course
disease.
Moreover,
higher
neuronal
activity
anterior
cingulum
medial
prefrontal
cortex,
hyperactivity
also
negatively
It
potentially
reflected
rumination,
impaired
concentration,
physiological
arousal
MDD.The
abnormal
findings
cortico-subcortical
implied
dysfunctional
cognitive
control
emotional
regulations
depression.
might
help
elaborate
neural
mechanisms
adolescents.
Cerebral Cortex,
Journal Year:
2023,
Volume and Issue:
33(16), P. 9627 - 9638
Published: June 28, 2023
Phenotyping
approaches
grounded
in
structural
network
science
can
offer
insights
into
the
neurobiological
substrates
of
psychiatric
diseases,
but
this
remains
to
be
clarified
at
individual
level
social
anxiety
disorder
(SAD).
Using
a
recently
developed
approach
combining
probability
density
estimation
and
Kullback-Leibler
divergence,
we
constructed
single-subject
covariance
networks
(SCNs)
based
on
multivariate
morphometry
(cortical
thickness,
surface
area,
curvature,
volume)
quantified
their
global/nodal
properties
using
graph-theoretical
analysis.
We
compared
metrics
between
SAD
patients
healthy
controls
(HC)
analyzed
relationship
clinical
characteristics.
also
used
support
vector
machine
analysis
explore
ability
discriminate
from
HC.
Globally,
showed
higher
global
efficiency,
shorter
characteristic
path
length,
stronger
small-worldness.
Locally,
abnormal
nodal
centrality
mainly
involving
left
superior
frontal
gyrus,
right
parietal
lobe,
amygdala,
paracentral
lingual,
pericalcarine
cortex.
Altered
topological
were
associated
with
symptom
severity
duration.
Graph-based
allowed
classification
versus
HC
total
accuracy
78.7%.
This
finding,
that
organization
SCNs
is
altered
toward
more
randomized
configurations,
adds
our
understanding
network-level
neuropathology
SAD.
Frontiers in Psychiatry,
Journal Year:
2023,
Volume and Issue:
14
Published: Aug. 21, 2023
This
study
aimed
at
examining
the
role
of
personality
traits
in
impulsive
buying,
compulsive
and
panic
buying
simultaneously
during
COVID-19
pandemic.
At
beginning
third
confinement
announced
by
Portuguese
government,
485
answered
this
study,
mean
age
41.9
years
(min
=
18,
max
84;
SD
12.9),
29.9%
were
men.
Analyzes
carried
out
to
investigate
association
Big
Five's
factors
with
buying.
Results
showed
that
three
behaviors
under
have
significant
positive
correlations
between
them,
they
also
correlate
different
traits.
The
each
Five
factor
on
differed.
While
conscientiousness
was
negatively
openness
positively
associated
agreeableness
neuroticism
correlated
all
consumer
behaviors.
Understanding
contribute
development
a
disorder
may
provide
valuable
insight
into
preventive
measures
effective
treatment
approaches
for
some
debilitating
disorders.
opens
ways
investigating
relating
them
It
discusses
pandemic
future
research
directions
involving
other
variables.