Posture‐Dependent Modulation of Interoceptive Processing in Young Male Participants: A Heartbeat‐Evoked Potential Study
European Journal of Neuroscience,
Год журнала:
2025,
Номер
61(4)
Опубликована: Фев. 1, 2025
ABSTRACT
Interoception,
the
internal
perception
of
bodily
states
such
as
heartbeat
and
hunger,
plays
a
crucial
role
in
shaping
cognitive
emotional
states.
Since
postural
control
affects
processing,
exploring
effects
on
interoception
could
help
uncover
neural
mechanisms
underlying
its
cognition
emotion.
In
this
study,
we
aimed
to
investigate
how
different
postures
affect
by
using
heartbeat‐evoked
potentials
(HEPs),
which
reflect
cortical
processing
cardiac
signals.
Two
experiments
were
conducted;
Experiment
1
involved
47
healthy
male
participants
comparing
sitting
standing
postures,
2
24
stable
unstable
conditions.
HEPs
analyzed
cluster‐based
permutation
analysis
identify
statistically
significant
spatiotemporal
clusters.
1,
clusters
identified
over
central
electrodes
(Cz,
C1,
C2,
FCz,
FC1)
within
post‐R‐wave
interval
304–572
ms,
revealing
significantly
lower
HEP
amplitudes
during
compared
[
W
=
80,
p
<
0.001,
r
0.62].
2,
t
(20)
2.9,
0.0099,
d
Furthermore,
found
no
correlations
between
changes
physiological
activity
periodic
aperiodic
brain
activity.
These
findings
suggest
differences
modulate
interoceptive
with
attenuating
amplitudes,
probably
because
redistribution
attentional
resources
from
somatosensory
(proprioceptive)
vestibular
necessary
for
maintaining
posture.
This
study
provides
insights
into
posture–interoception
interaction.
Язык: Английский
Computational Approaches for Uncovering Interoceptive Mechanisms in Psychiatric Disorders and Their Biological Basis
Current topics in behavioral neurosciences,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Язык: Английский
Cardio-respiratory interactions in interoceptive perception: The role of heartbeat-modulated cortical oscillations
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 19, 2025
Abstract
The
cardiovascular
and
respiratory
systems
are
anatomically
functionally
integrated
within
the
cardio-respiratory
system.
This
close
connection
suggests
that
breathing
continuously
shapes
cardiac
interoceptive
perception.
Previously,
we
demonstrated
interactions
in
heartbeat-evoked
potential,
a
neural
marker
of
cortical
processing
signals.
Specifically,
observed
enhanced
late
potential
positivity
greater
accuracy
during
exhalation
compared
to
inhalation
participants
engaged
tasks.
Here,
extended
these
findings
time-frequency
domain
by
reanalysing
our
previous
dataset.
We
investigated
heartbeat-modulated
oscillations,
examining
power,
inter-trial
coherence,
functional
connectivity
across
cycle
at
rest,
task
(heartbeat
counting),
an
exteroceptive
control
(cardiac-tone
counting).
Results
revealed
heartbeat
counting
task,
heartbeat-related
increased
inhalation,
particularly
alpha
theta
frequency
bands.
These
effects
were
primarily
localized
right
fronto-centro-parietal
electrodes.
Furthermore,
identified
interactive
relationships
between
oscillations
band
predicted
accuracy.
independent
physiology
absent
task.
proposed
model
framework
predictive
coding,
suggesting
occur
multiple
levels
hierarchy:
peripheral,
brainstem,
cortical.
Our
interpretation
highlights
role
alpha-band
modulations
enhancing
precision-weighting
prediction
errors,
thereby
facilitating
attentional
allocation
signals
suppression
task-irrelevant
distractors,
exhalation.
Язык: Английский