How adverse childhood experiences get under the skin: A systematic review, integration and methodological discussion on threat and reward learning mechanisms
eLife,
Journal Year:
2024,
Volume and Issue:
13
Published: July 16, 2024
Adverse
childhood
experiences
(ACEs)
are
a
major
risk
factor
for
the
development
of
multiple
psychopathological
conditions,
but
mechanisms
underlying
this
link
poorly
understood.
Associative
learning
encompasses
key
through
which
individuals
learn
to
important
environmental
inputs
emotional
and
behavioral
responses.
ACEs
may
impact
normative
maturation
associative
processes,
resulting
in
their
enduring
maladaptive
expression
manifesting
psychopathology.
In
review,
we
lay
out
systematic
methodological
overview
integration
available
evidence
proposed
association
between
threat
reward
processes.
We
summarize
results
from
literature
search
(following
PRISMA
guidelines)
yielded
total
81
articles
(threat:
n=38,
reward:
n=43).
Across
fields,
behaviorally,
observed
converging
pattern
aberrant
with
history
ACEs,
independent
other
sample
characteristics,
specific
ACE
types,
outcome
measures.
Specifically,
blunted
was
reflected
reduced
discrimination
safety
cues,
primarily
driven
by
diminished
responding
conditioned
cues.
Furthermore,
attenuated
manifested
accuracy
rate
tasks
involving
acquisition
contingencies.
Importantly,
emerged
despite
substantial
heterogeneity
assessment
operationalization
across
both
fields.
conclude
that
represent
mechanistic
route
become
physiologically
neurobiologically
embedded
ultimately
confer
greater
closing,
discuss
potentially
fruitful
future
directions
research
field,
including
considerations.
Language: Английский
Reduced discrimination between signals of danger and safety but not overgeneralization is linked to exposure to childhood adversity in healthy adults
eLife,
Journal Year:
2025,
Volume and Issue:
12
Published: Feb. 20, 2025
Childhood
adversity
is
a
strong
predictor
of
developing
psychopathological
conditions.
Multiple
theories
on
the
mechanisms
underlying
this
association
have
been
suggested
which,
however,
differ
in
operationalization
‘exposure.’
Altered
(threat)
learning
represent
central
by
which
environmental
inputs
shape
emotional
and
cognitive
processes
ultimately
behavior.
1402
healthy
participants
underwent
fear
conditioning
paradigm
(acquisition
training,
generalization),
while
acquiring
skin
conductance
responses
(SCRs)
ratings
(arousal,
valence,
contingency).
was
operationalized
as
(1)
dichotomization,
following
(2)
specificity
model,
(3)
cumulative
risk
(4)
dimensional
model.
Individuals
exposed
to
childhood
showed
blunted
physiological
reactivity
SCRs,
but
not
ratings,
reduced
CS+/CS-
discrimination
during
both
phases,
mainly
driven
attenuated
CS+
responding.
The
latter
evident
across
different
operationalizations
‘exposure’
theories.
None
tested
clear
explanatory
superiority.
Notably,
remarkably
pattern
increased
responding
CS-
reported
literature
for
anxiety
patients,
suggesting
that
individuals
may
specific
sub-sample.
We
highlight
linking
(vulnerability
to)
psychopathology
need
refinement.
Language: Английский
Person-centered analyses reveal that developmental adversity at moderate levels and neural threat/safety discrimination are associated with lower anxiety in early adulthood
Communications Psychology,
Journal Year:
2025,
Volume and Issue:
3(1)
Published: March 5, 2025
Parsing
heterogeneity
in
the
nature
of
adversity
exposure
and
neurobiological
functioning
may
facilitate
better
understanding
how
shapes
individual
variation
risk
for
resilience
against
anxiety.
One
putative
mechanism
linking
with
anxiety
is
disrupted
threat
safety
learning.
Here,
we
applied
a
person-centered
approach
(latent
profile
analysis)
to
characterize
patterns
at
specific
developmental
stages
threat/safety
discrimination
corticolimbic
circuitry
120
young
adults.
We
then
compared
resultant
profiles
differed
symptoms.
Three
latent
emerged:
(1)
group
lower
lifetime
adversity,
higher
neural
activation
threat,
safety;
(2)
moderate
during
middle
childhood
adolescence,
(3)
minimal
both
safety.
Individuals
second
had
than
other
profiles.
These
findings
demonstrate
variability
within-person
combinations
can
differentially
relate
anxiety,
suggest
that
some
individuals,
adolescence
could
be
associated
processes
foster
future
Language: Английский
Reduced discrimination between signals of danger and safety but not overgeneralization is linked to exposure to childhood adversity in healthy adults
eLife,
Journal Year:
2023,
Volume and Issue:
12
Published: Dec. 20, 2023
Childhood
adversity
is
a
strong
predictor
of
developing
psychopathological
conditions.
Multiple
theories
on
the
mechanisms
underlying
this
association
have
been
suggested
which,
however,
differ
in
operationalization
'exposure.'
Altered
(threat)
learning
represent
central
by
which
environmental
inputs
shape
emotional
and
cognitive
processes
ultimately
behavior.
1402
healthy
participants
underwent
fear
conditioning
paradigm
(acquisition
training,
generalization),
while
acquiring
skin
conductance
responses
(SCRs)
ratings
(arousal,
valence,
contingency).
was
operationalized
as
(1)
dichotomization,
following
(2)
specificity
model,
(3)
cumulative
risk
(4)
dimensional
model.
Individuals
exposed
to
childhood
showed
blunted
physiological
reactivity
SCRs,
but
not
ratings,
reduced
CS+/CS-
discrimination
during
both
phases,
mainly
driven
attenuated
CS+
responding.
The
latter
evident
across
different
operationalizations
'exposure'
theories.
None
tested
clear
explanatory
superiority.
Notably,
remarkably
pattern
increased
responding
CS-
reported
literature
for
anxiety
patients,
suggesting
that
individuals
may
specific
sub-sample.
We
highlight
linking
(vulnerability
to)
psychopathology
need
refinement.
Language: Английский
Fear and Safety Learning in Anxiety Spectrum Disorders: An Updated Meta-Analysis
Published: Aug. 2, 2024
Fear
learning
processes
are
assumed
to
play
a
key
role
in
the
pathogenesis
of
anxiety
disorders,
heterogeneous
group
disorders
characterized
by
excessive
and
avoidance
behavior.
While
some
receive
more
attention
fear
safety
research,
others
remain
understudied.
Heterogeneity
concepts,
measures,
designs
within
field
further
contribute
inconsistent
study
outcomes.
Addressing
these
challenges,
we
conducted
systematic
meta-analysis,
adhering
PRISMA
guidelines,
examine
differences
conditioning
between
patients
healthy
participants,
updating
meta-analysis
Duits
et
al.
(2015).
We
extended
previous
analyses
conducting
subgroup
for
different
types
distinguished
physiological
behavioral
outcome
measurements.
This
includes
76
studies
published
1986
2022
with
data
from
1.974
3.154
participants.
The
results
support
acquisition
extinction
individuals
compared
More
specifically,
showed
heightened
responses
CS-
both
measures
during
acquisition,
increased
aversiveness
ratings
CS+.
Following
learning,
threat
expectancy
affect
CS+
CS-,
alongside
stronger
SCR
These
findings
suggest
that
may
exhibit
amplified
cues
along
delayed
learned
associations.
changes
lead
sensitivity
acquiring
detecting
slower
process,
resulting
enduring
responses.
characteristics
consistent
"better-safe-than-sorry"
information
processing
strategy
linked
susceptibility
anxiety.
integrate
our
into
current
literature
on
discuss
possible
underlying
mechanisms.
Furthermore,
explicitly
mention
give
recommendations
how
they
can
be
addressed.
Language: Английский
Between faces: childhood adversity is associated with reduced threat-safety discrimination during facial expression processing in adolescence
BMC Medicine,
Journal Year:
2024,
Volume and Issue:
22(1)
Published: Sept. 11, 2024
Language: Английский
Fear and Safety Learning in Anxiety- and Stress-Related Disorders: An Updated Meta-Analysis
Neuroscience & Biobehavioral Reviews,
Journal Year:
2024,
Volume and Issue:
unknown, P. 105983 - 105983
Published: Dec. 1, 2024
Language: Английский
Reduced discrimination between signals of danger and safety but not overgeneralization is linked to exposure to childhood adversity in healthy adults
Published: Oct. 16, 2024
Childhood
adversity
is
a
strong
predictor
for
developing
psychopathological
conditions.
Exposure
to
threat-related
childhood
has
been
suggested
be
specifically
linked
altered
emotional
learning
as
well
changes
in
neural
circuits
involved
responding
and
fear.
Learning
mechanisms
are
particularly
interesting
they
central
through
which
environmental
inputs
shape
cognitive
processes
ultimately
behavior.
Multiple
theories
on
the
underlying
this
association
have
which,
however,
differ
operationalization
of
“exposure”.
In
current
study,
1,402
physically
mentally
healthy
participants
underwent
differential
fear
conditioning
paradigm
including
acquisition
generalization
phase
while
skin
conductance
responses
(SCRs)
different
subjective
ratings
were
acquired.
was
retrospectively
assessed
trauma
questionnaire
(CTQ)
classified
individuals
exposed
or
unexposed
at
least
moderate
according
established
cut-off
criteria.
addition,
we
provide
exploratory
analyses
aiming
translate
(verbal)
how
exposure
related
from
threat
into
statistical
models.
During
training
generalization,
reduced
discrimination
SCRs
between
stimuli
signaling
danger
vs.
safety,
primarily
due
cues.
no
differences
degree
observed
but
generally
blunted
occurred
individuals.
No
groups
any
experimental
phases.
The
signals
safety
evident
across
operationalizations
“exposure”
guided
by
theories.
Of
note,
none
these
tested
showed
clear
explanatory
superiority.
Our
results
stand
stark
contrast
typical
patterns
patients
suffering
anxiety
stress-related
disorders
(i.e.,
cues
increased
signals).
However,
CS
-
albeit
CS+
also
patient
risk
samples
reporting
adversity,
suggesting
that
pattern
may
specific
with
history
adversity.
conclude
linking
psychopathology
need
refinement.
Language: Английский
Childhood adversity is associated with reduced threat‐safety discrimination and increased fear generalization in 12‐ to 16‐year‐olds
Journal of Child Psychology and Psychiatry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
Background
Childhood
adversity
poses
a
major
transdiagnostic
risk
for
host
of
psychiatric
disorders.
Altered
threat‐related
information
processing
has
been
put
forward
as
potential
process
underlying
the
association
between
childhood
and
disorders,
with
previous
research
providing
support
decreased
discrimination
threat
safety
cues,
in
both
children
adults
exposed
to
adversity.
This
altered
threat‐safety
hypothesized
stem
from
increased
generalization
fear,
yet
date,
this
hypothesis
not
tested
youth.
Methods
Here,
we
investigate
whether
is
associated
fear
during
adolescence.
119
adolescents
12
16
years
age
(mean
=
13.95),
whom
63
adversity,
completed
paradigm.
Fear
conditioning
was
assessed
through
trial‐by‐trial
US
expectancy
ratings
post‐experimental
valence
arousal.
Additionally,
administered
perceptual
task
assess
impact
abilities
upon
generalization.
Results
In
line
our
hypotheses,
results
showed
that
(1)
reduced
differentiation
acquisition
(2)
boys
girls,
albeit
different
extent,
more
towards
cues
while
girls
dangerous
cues.
Moreover,
overgeneralization
could
be
attributed
group
differences
discrimination.
Conclusions
learning
may
an
important
which
increases
development
psychopathology.
Longitudinal
essential
elucidate
resilience
patterns
following
Language: Английский
Reduced discrimination between signals of danger and safety but not overgeneralization is linked to exposure to childhood adversity in healthy adults
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Sept. 28, 2023
Abstract
Childhood
adversity
is
a
strong
predictor
of
developing
psychopathological
conditions.
Multiple
theories
on
the
mechanisms
underlying
this
association
have
been
suggested
which,
however,
differ
in
operationalization
‘exposure’.
Altered
(threat)
learning
represent
central
by
which
environmental
inputs
shape
emotional
and
cognitive
processes
ultimately
behavior.
1402
healthy
participants
underwent
fear
conditioning
paradigm
(acquisition
training,
generalization),
while
acquiring
skin
conductance
responses
(SCRs)
ratings
(arousal,
valence,
contingency).
was
operationalized
as
(1)
dichotomization,
following
(2)
specificity
model,
(3)
cumulative
risk
(4)
dimensional
model.
Individuals
exposed
to
childhood
showed
blunted
physiological
reactivity
SCRs,
but
not
ratings,
reduced
CS+/CS-discrimination
during
both
phases,
mainly
driven
attenuated
CS
+
responding.
The
latter
evident
across
different
operationalizations
‘exposure’
theories.
None
tested
clear
explanatory
superiority.
Notably,
remarkably
pattern
increased
responding
CS-is
reported
literature
for
anxiety
patients,
suggesting
that
individuals
may
specific
sub-sample.
We
highlight
linking
(vulnerability
to)
psychopathology
need
refinement.
Language: Английский