Make it worth it: Effort-reward modulations on reinforcement-learning and prediction-error signaling across adolescence
Developmental Cognitive Neuroscience,
Journal Year:
2025,
Volume and Issue:
unknown, P. 101559 - 101559
Published: April 1, 2025
Adolescence
is
characterized
by
significant
shifts
in
effort
allocation.
A
well-known
neuro-economic
framework
suggests
that
rewards
help
overcome
potential
costs.
However,
few
studies
have
examined
the
neurobiological
mechanisms
which
and
associated
costs
drive
adolescent
learning.
This
study
utilized
functional
magnetic
resonance
imaging
a
sample
of
adolescents
(N
=
146,
13-25
years)
employed
reinforcement-learning
paradigm
manipulated
reward
levels,
varying
task
demands
rewards.
The
analysis
trial-by-trial
learning
signals
(reward
prediction
errors)
behavioral
performance
demonstrated
greater
levels
enhanced
learning,
especially
when
faced
with
demands.
Moreover,
this
effect
was
more
pronounced
those
experiencing
demands:
younger
who
place
less
value
on
for
demanding
tasks.
Neuroimaging
results
revealed
dorsal
anterior
cingulate
cortex
(dACC)
key
region
signaling
interaction
between
That
is,
strengthened
error
coding
dACC,
particularly
under
conditions
demands,
these
effects
being
These
findings
support
role
dACC
engagement
cognitive
control,
situations
where
control
would
be
beneficial
despite
its
costs,
such
as
high-demanding
situations.
comprehensive
approach
aims
to
inform
strategies
supporting
allocation
during
crucial
developmental
period.
Language: Английский
Symptom clusters of depression, anxiety, and ADHD show separable dimensional effects on reinforcement learning in children and adolescents
Published: Aug. 8, 2024
Past
reinforcement
learning
(RL)
studies
implicated
valence
and
uncertainty
in
modulating
psychopathology
effects
on
computational
parameters.
Yet,
gaps
persist
understanding
their
developmental
trajectory,
generalizability
across
contexts,
the
nuanced
impact
of
individual
symptom
severity
that
is
often
overlooked
case-control
designs.
In
a
sample
122
8-to-18-year-olds
both
clinical
typically
developing
individuals,
our
study
found
differential
depression,
anxiety
ADHD
RL,
noting
reduced
choice
sensitivity
valence-related
modulations
uncertainty-related
changes
ADHD.
We
further
deconstructed
links
to
RL
parameters
according
five
biologically
plausible
transdiagnostic
clusters
anhedonia,
negative
affect,
fear,
inattention
hyperactivity.
Unexpectedly,
many
identified
revealed
(inverted-)u-shaped
instead
linear
relationships.
Our
provides
evidence
symptom-related
alterations
decision-making
manifest
children
as
young
8
years
old,
with
increasing
influence
internalizing
symptoms
but
decreasing
externalizing
age.
Through
this
comprehensive
approach,
we
aim
enhance
interplay
between
psychopathology,
development,
processes,
ultimately
informing
targeted
interventions.
Language: Английский