BJPsych Open,
Journal Year:
2022,
Volume and Issue:
8(4)
Published: July 1, 2022
Early-life
interpersonal
stress,
particularly
childhood
maltreatment,
is
associated
with
neurobiological
abnormalities.
However,
few
studies
have
investigated
the
neural
effects
of
peer
victimisation.This
study
examines
common
and
specific
associations
between
victimisation
brain
structural
alterations
in
youths.Grey
matter
volume
(GMV)
cortical
thickness
data
were
collected
from
105
age-
gender-matched
youths
(age
range:
17-21
years).
Region-of-interest
whole-brain
analyses
conducted.For
region-of-interest
analyses,
maltreatment
group
had
smaller
GMV
than
controls
left
inferior
frontal
gyrus,
bilateral
anterior
insula,
postcentral
lingual
regions,
which
greater
emotional
abuse,
along
insular
group,
who
controls.
At
level,
both
groups
a
cluster
comprising
post/precentral,
superior
parietal
supramarginal
gyri.
The
alone
increased
frontal,
cingulate
medial
orbitofrontal
gyri,
was
related
to
cyberbullying.Early-life
stress
frontal-limbic,
sensory
regions
involved
cognitive
control,
emotion
processing.
findings
childhood-maltreatment-related
reduced
peer-victimisation-related
prefrontal-anterior
underscore
distinctive
negative
victimisation,
suggest
that
cyberbullying,
could
be
as
detrimental
maltreatment.
JMIR Mental Health,
Journal Year:
2023,
Volume and Issue:
10, P. e42045 - e42045
Published: Feb. 2, 2023
Artificial
intelligence
(AI)
is
giving
rise
to
a
revolution
in
medicine
and
health
care.
Mental
conditions
are
highly
prevalent
many
countries,
the
COVID-19
pandemic
has
increased
risk
of
further
erosion
mental
well-being
population.
Therefore,
it
relevant
assess
current
status
application
AI
toward
research
inform
about
trends,
gaps,
opportunities,
challenges.This
study
aims
perform
systematic
overview
applications
terms
methodologies,
data,
outcomes,
performance,
quality.A
search
PubMed,
Scopus,
IEEE
Xplore,
Cochrane
databases
was
conducted
collect
records
use
cases
for
disorder
studies
from
January
2016
November
2021.
Records
were
screened
eligibility
if
they
practical
implementation
clinical
trials
involving
conditions.
evaluated
categorized
by
International
Classification
Diseases
11th
Revision
(ICD-11).
Data
related
trial
settings,
collection
methodology,
features,
model
development
evaluation
extracted
following
CHARMS
(Critical
Appraisal
Extraction
Systematic
Reviews
Prediction
Modelling
Studies)
guideline.
Further,
bias
provided.A
total
429
nonduplicated
retrieved
129
included
full
assessment-18
which
manually
added.
The
distribution
found
unbalanced
between
ICD-11
categories.
Predominant
categories
Depressive
disorders
(n=70)
Schizophrenia
or
other
primary
psychotic
(n=26).
Most
interventions
based
on
randomized
controlled
(n=62),
followed
prospective
cohorts
(n=24)
among
observational
studies.
typically
applied
evaluate
quality
treatments
(n=44)
stratify
patients
into
subgroups
clusters
(n=31).
Models
usually
combination
questionnaires
scales
symptom
severity
using
electronic
(n=49)
as
well
medical
images
(n=33).
Quality
assessment
revealed
important
flaws
process
data
preprocessing
pipelines.
One-third
(n=56)
did
not
report
any
preparation.
One-fifth
models
developed
comparing
several
methods
(n=35)
without
assessing
their
suitability
advance
small
proportion
reported
external
validation
(n=21).
Only
1
paper
second
previous
model.
Risk
transparent
reporting
yielded
low
scores
due
poor
strategy
adjusting
hyperparameters,
coefficients,
explainability
models.
collaboration
anecdotal
(n=17)
mostly
remained
private
(n=126).These
significant
shortcomings,
alongside
lack
information
ensure
reproducibility
transparency,
indicative
challenges
that
needs
face
before
contributing
solid
base
knowledge
generation
being
support
tool
management.
Biological Psychiatry Cognitive Neuroscience and Neuroimaging,
Journal Year:
2022,
Volume and Issue:
7(11), P. 1055 - 1067
Published: Aug. 8, 2022
Canonical
correlation
analysis
(CCA)
and
partial
least
squares
(PLS)
are
powerful
multivariate
methods
for
capturing
associations
across
2
modalities
of
data
(e.g.,
brain
behavior).
However,
when
the
sample
size
is
similar
to
or
smaller
than
number
variables
in
data,
standard
CCA
PLS
models
may
overfit,
i.e.,
find
spurious
that
generalize
poorly
new
data.
Dimensionality
reduction
regularized
extensions
have
been
proposed
address
this
problem,
yet
most
studies
using
these
approaches
some
limitations.
This
work
gives
a
theoretical
practical
introduction
into
common
CCA/PLS
their
variants.
We
examine
limitations
variables.
discuss
how
dimensionality
regularization
techniques
problem
explain
main
advantages
disadvantages.
highlight
crucial
aspects
framework,
including
optimizing
hyperparameters
model
testing
identified
statistical
significance.
apply
described
simulated
real
from
Human
Connectome
Project
Alzheimer's
Disease
Neuroimaging
Initiative
(both
n
>
500).
use
both
low-
high-dimensionality
versions
(i.e.,
ratios
between
range
∼1–10
∼0.1–0.01,
respectively)
demonstrate
impact
on
models.
Finally,
we
summarize
key
lessons
tutorial.
Schizophrenia,
Journal Year:
2025,
Volume and Issue:
11(1)
Published: Feb. 20, 2025
Adverse
childhood
experiences
(ACEs)
are
common
in
people
at
clinical
high-risk
for
psychosis
(CHR),
however,
the
relationship
between
ACEs
and
long-term
outcomes
is
still
unclear.
This
study
examined
associations
CHR
individuals.
344
individuals
67
healthy
controls
(HC)
were
assessed
using
Childhood
Trauma
Questionnaire
(CTQ),
Bullying
Experience
of
Care
Abuse
(CECA).
followed
up
to
5
years.
Remission
from
state,
transition
(both
defined
with
Comprehensive
Assessment
an
At
Risk
Mental
State),
level
functioning
(assessed
Global
Functioning)
assessed.
Stepwise
multilevel
logistic
regression
models
used
investigate
outcomes.
significantly
more
prevalent
than
HC.
Within
cohort,
physical
abuse
was
associated
a
reduced
likelihood
remission
(OR
=
3.64,
p
0.025).
Separation
parent
linked
increased
both
0.32,
0.011)
higher
1.77,
0.040).
Death
1.87,
0.037)
risk
transitioning
psychosis.
Physical
death
related
adverse
CHR.
The
counter-intuitive
association
separation
may
reflect
removal
child
environment.
Future
studies
should
whether
interventions
targeting
effect
specific
might
help
improve
this
population.
Biological Psychiatry,
Journal Year:
2021,
Volume and Issue:
90(3), P. 182 - 193
Published: March 9, 2021
Childhood
adversity
has
been
previously
associated
with
alterations
in
brain
structure,
but
heterogeneous
designs,
methods,
and
measures
have
contributed
to
mixed
results
impeded
progress
mapping
the
biological
embedding
of
childhood
adversity.
We
sought
identify
long-term
differences
structural
integrity
adversity.Multiple
regression
was
used
test
associations
between
prospectively
ascertained
during
retrospectively
reported
adulthood
magnetic
resonance
imaging
midlife
global
regional
cortical
thickness,
surface
area,
subcortical
gray
matter
volume
861
(425
female)
members
Dunedin
Study,
a
longitudinal
investigation
population-representative
birth
cohort.Both
were
integrity,
consistently
stronger
more
widely
distributed
than
Sensitivity
analyses
revealed
that
these
not
driven
by
any
particular
or
category
(i.e.,
threat
deprivation)
socioeconomic
disadvantage.
Network
enrichment
localized
broadly
along
hierarchical
gradient
information
processing.Exposure
is
widespread
across
structures,
suggesting
long
lasting,
localized.
Research
using
likely
underestimates
magnitude
associations.
These
findings
may
inform
future
research
investigating
mechanisms
through
which
becomes
embedded
influences
mental
health
cognition.
Neuroscience & Biobehavioral Reviews,
Journal Year:
2024,
Volume and Issue:
162, P. 105699 - 105699
Published: May 6, 2024
Robust
epidemiological
evidence
of
risk
and
protective
factors
for
psychosis
is
essential
to
inform
preventive
interventions.
Previous
syntheses
have
classified
these
according
their
strength
association
with
psychosis.
In
this
critical
review
we
appraise
the
distinct
overlapping
mechanisms
25
key
environmental
psychosis,
link
mechanistic
pathways
that
may
contribute
neurochemical
alterations
hypothesised
underlie
psychotic
symptoms.
We
then
discuss
implications
our
findings
future
research,
specifically
considering
interactions
between
factors,
exploring
universal
subgroup-specific
improving
understanding
temporality
dynamics,
standardising
operationalisation
measurement
developing
interventions
targeting
factors.
Journal of Psychiatric Research,
Journal Year:
2022,
Volume and Issue:
147, P. 237 - 247
Published: Jan. 17, 2022
Childhood
trauma
(CT)
is
a
non-specific
risk
factor
for
major
depressive
disorder
(MDD).
However,
the
neurobiological
mechanisms
of
MDD
with
CT
remain
unclear.
In
present
study,
we
sought
to
determine
specific
brain
regions
associated
and
etiology.
Fractional
amplitude
low-frequency
fluctuation
(fALFF)
functional
connectivity
(FC)
analyses
were
performed
assess
alterations
intrinsic
activity
in
CT,
without
healthy
controls
CT.
Two-by-two
factorial
examine
effects
factors
"MDD"
"CT"
on
fALFF
FC.
Moderator
analysis
was
used
explore
whether
severity
depression
moderated
relationship
between
aberrant
fALFF.
We
found
that
etiological
exhibited
negative
impacts
dysfunction
including
altered
left
postcentral
gyrus,
lingual
paracentral
lobule
(PCL),
cuneus.
Decreased
FC
observed
following
regions:
(i)
gyrus
seed
fusiform
as
well
right
calcarine
cortex;
(ii)
PCL
supplementary
motor
area,
cortex,
precentral
cuneus;
(iii)
superior
parietal
lobule,
gyrus.
Furthermore,
acted
moderator
PCL.
These
data
indicate
patients
exposure
are
clinically
neurobiologically
distinct.
Neuropsychoanalysis,
Journal Year:
2023,
Volume and Issue:
25(2), P. 103 - 159
Published: July 3, 2023
The
separation
distress
hypothesis
of
depression,
formulated
in
2009,
offered
an
affective
neuroscience
perspective
on
our
most
common
and
costly
mental
health
condition,
as
alternative
to
molecular
reductionism
psychiatry.
Our
constituted
a
neurobiological
extension
classic
work
depression
intrinsically
related
attachment
loss,
integrating
psychological
findings
from
clinical
preclinical
models.
We
posited
three
ideas:
1)
is
evolutionarily
conserved
vulnerability
within
the
social-affective
endowment
mammalian
brains,
involving
interactions
between
other
CNS
systems;
2)
this
mechanism
adaptively
shuts
down
protracted
distress,
potentially
lethal
infant
mammals,
thus
protective
circumscribed
form,
explaining
its
conservation;
3)
process
has
no
single
biological
'lever'
instantiated
through
complex
recursion.
Like
processes,
it
overlaps
with
kindred
processes
also
serving
behavioral
shutdown,
particularly
hibernation
sickness
behavior.
Epicenters
for
include
large
array
systems
regulating
behavioral/affective
states:
stress
axis,
immune
systems,
monoamine
cholinergic
GABA
glutamate
molecule
pro-social
neuropeptide
all
dynamically
linked.
This
review
tracks
multiple
developments
last
10
years
including
growing
public
healthcare
awareness
about
not
just
impact
primary
relationships,
corollary,
neurobiologically
destructive
effects
trauma,
abuse,
neglect,
social
isolation.
Secure
both
necessity,
loss
or
traumatic
disruption
may
constitute
fertile
ground
forms.
Psychological Medicine,
Journal Year:
2022,
Volume and Issue:
53(10), P. 4720 - 4731
Published: June 27, 2022
Childhood
maltreatment
(CM)
represents
a
potent
risk
factor
for
major
depressive
disorder
(MDD),
including
poorer
treatment
response.
Altered
resting-state
connectivity
in
the
fronto-limbic
system
has
been
reported
maltreated
individuals.
However,
previous
results
smaller
samples
differ
largely
regarding
localization
and
direction
of
effects.We
included
healthy
depressed
[n
=
624
participants
with
MDD;
n
701
control
(HC)
participants]
that
underwent
functional
MRI
measurements
provided
retrospective
self-reports
using
Trauma
Questionnaire.
A-priori
defined
regions
interest
[ROI;
amygdala,
hippocampus,
anterior
cingulate
cortex
(ACC)]
were
used
to
calculate
seed-to-voxel
connectivities.No
significant
associations
between
any
ROI
found
across
MDD
HC
no
interaction
effect
diagnosis
became
significant.
Investigating
patients
only
yielded
maltreatment-associated
increased
amygdala
dorsolateral
frontal
areas
[pFDR
<
0.001;
η2partial
0.050;
95%-CI
(0.023-0.085)].
This
was
robust
various
sensitivity
analyses
associated
concurrent
symptom
severity.
Particularly
strong
amygdala-frontal
observed
acutely
individuals
264;
pFDR
0.091;
(0.038-0.166)).
Weaker
evidence
-
not
surviving
correction
multiple
altered
supracallosal
ACC
maltreatment.The
majority
correlates
CM
could
be
replicated
this
large-scale
study.
The
strongest
clinically
relevant
adult
amygdala-dorsolateral
depression.
Future
studies
should
explore
relevance
pathway
subgroup
patients.
JAMA Psychiatry,
Journal Year:
2022,
Volume and Issue:
79(7), P. 677 - 677
Published: May 18, 2022
Approaches
are
needed
to
stratify
individuals
in
early
psychosis
stages
beyond
positive
symptom
severity
investigate
specificity
related
affective
and
normative
variation
validate
solutions
with
premorbid,
longitudinal,
genetic
risk
measures.