bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 16, 2023
Abstract
Sensory
signals
from
the
body’s
visceral
organs
(e.g.
heart)
can
robustly
influence
perception
of
exteroceptive
sensations.
This
interoceptive-exteroceptive
interaction
has
been
argued
to
underlie
self-awareness
by
situating
one’s
perceptual
awareness
stimuli
in
context
internal
state,
but
studies
probing
cardiac
influences
on
visual
have
yielded
conflicting
findings.
In
this
study,
we
presented
separate
grating
each
subjects’
eyes
as
a
classic
binocular
rivalry
paradigm
–
measuring
duration
for
which
stimulus
dominates
perception.
However,
caused
gratings
“pulse”
at
specific
times
relative
real-time
electrocardiogram,
manipulating
whether
pulses
occurred
during
systole,
when
baroreceptors
signal
brain
that
heart
contracted,
or
diastole
are
silent.
The
influential
“Baroreceptor
Hypothesis”
predicts
effect
baroreceptive
input
should
be
uniformly
suppressive.
contrast,
observed
dominance
durations
increased
systole-entrained
stimuli,
inconsistent
with
Baroreceptor
Hypothesis.
Further,
show
cardiac-dependent
is
preserved
subjects
who
at-chance
discriminating
between
and
diastole-presented
interoceptive
task,
suggesting
our
results
not
dependent
conscious
access
heartbeat
Current Psychiatry Reports,
Год журнала:
2022,
Номер
24(1), С. 47 - 60
Опубликована: Янв. 1, 2022
Abnormal
interoception
has
been
consistently
observed
across
eating
disorders
despite
limited
inclusion
in
diagnostic
conceptualization.
Using
the
alimentary
tract
as
well
recent
developments
interoceptive
neuroscience
and
predictive
processing
a
guide,
current
review
summarizes
evidence
of
gastrointestinal
dysfunction
disorders.
Although
it
is
generally
held
that
gastrointestinal
(GI)
signals
are
related
to
emotions,
direct
evidence
for
such
a
link
currently
lacking.
One
of
the
reasons
why
internal
milieu
GI
system
poorly
investigated
because
visceral
organs
difficult
access
and
monitor.
To
directly
measure
influence
endoluminal
markers
activity
on
emotional
experience,
we
asked
group
healthy
male
participants
ingest
pill
measured
pH,
pressure,
temperature
their
tract
while
they
watched
video
clips
consistently
induced
disgust,
fear,
happiness,
sadness,
or
control
neutral
state.
In
addition
objective
physiological
activity,
subjective
ratings
perceived
emotions
(i.e.
gastric,
respiratory
cardiac)
sensations
were
recorded,
as
well
changes
in
heart
rate
(HR),
variability
(HRV)
spontaneous
eyes
blinks
non-gastric
behavioral
autonomic
experience.
We
found
when
observed
fearful
disgusting
clips,
reported
perceive
not
only
cardiac
but
also
gastric
sensations,
nausea.
Moreover,
there
was
clear
relation
between
physiology
stomach
emotions.
Specifically,
displayed,
more
acidic
feelings
disgust
fear;
less
happiness.
Complementing
results
deep
realm,
stimuli
significant
increase
HRV
compared
scenarios,
together
with
decrease
HR.
Our
findings
suggest
contribute
unique
states
ingestible
pills
may
open
new
avenues
exploring
deep-body
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Окт. 9, 2023
Abstract
Recent
studies
suggest
that
the
human
body
plays
a
critical
role
in
episodic
memory.
Still,
precise
relationship
between
bodily
self-consciousness
(BSC)
and
memory
formation
of
specific
events,
especially
real-life
contexts,
remains
topic
ongoing
research.
The
present
study
investigated
BSC
(EM)
using
immersive
virtual
reality
(VR)
technology.
Participants
were
immersed
an
urban
environment
with
naturalistic
while
their
visuomotor
feedback
was
manipulated
three
within-subjects
conditions:
Synchronous,
Asynchronous,
No-body.
Our
results
show
asynchronous
not
seeing
one’s
body,
compared
to
synchronous
feedback,
decrease
sense
self-identification,
self-location
agency,
presence.
Moreover,
navigating
Asynchronous
condition
had
detrimental
impact
on
incidental
event
memory,
perceptual
details,
contextual
association,
subjective
remembering,
consolidation.
In
contrast,
participants
No-Body
only
impaired
egocentric
spatial
remembering
at
ten-day
delay.
We
discuss
these
findings
relation
self-representation
space
during
encoding.
This
sheds
light
complex
interplay
BSC,
presence,
processes,
strengthens
potential
embodiment
VR
technology
studying
enhancing
cognition.
Affective Science,
Год журнала:
2023,
Номер
4(3), С. 480 - 486
Опубликована: Авг. 10, 2023
Emotions
are
inherently
complex
-
situated
inside
the
brain
while
being
influenced
by
conditions
body
and
outside
in
world
resulting
substantial
variation
experience.
Most
studies,
however,
not
designed
to
sufficiently
sample
this
variation.
In
paper,
we
discuss
what
could
be
discovered
if
emotion
were
systematically
studied
within
persons
'in
wild',
using
biologically-triggered
experience
sampling:
a
multimodal
deeply
idiographic
approach
ambulatory
sensing
that
links
mind
across
contexts
over
time.
We
outline
rationale
for
approach,
challenges
its
implementation
widespread
adoption,
set
out
opportunities
innovation
afforded
emerging
technologies.
Implementing
these
innovations
will
enrich
method
theory
at
frontier
of
affective
science,
propelling
contextually
study
into
future.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Апрель 23, 2024
We
capitalized
on
the
respiratory
bodily
illusion
that
we
discovered
in
a
previous
study
and
called
'Embreathment'
where
showed
breathing
modulates
corporeal
awareness
men.
Despite
relevance
of
issue,
no
such
studies
are
available
women.
To
bridge
this
gap,
tested
whether
synchronization
avatar-participant
respiration
patterns
influenced
females'
awareness.
collected
cardiac
interoceptive
measures,
administered
body
(dis)satisfaction
questionnaires,
tracked
participants'
menstrual
cycles
via
mobile
app.
Our
approach
allowed
us
to
characterize
women,
explore
relationships
between
cycle,
interoception
image.
found
was
as
crucial
visual
appearance
eliciting
feelings
ownership
held
greater
significance
than
any
other
cue
with
respect
agency
both
women
Moreover,
positive
correlation
cycle
days
image
concerns,
negative
sensibility
dissatisfaction
were
found,
confirming
women's
arises
during
last
is
associated
interoception.
These
findings
have
potential
implications
for
alterations
clinical
conditions
like
eating
disorders
schizophrenia.
Sensory
signals
from
the
body’s
visceral
organs
(e.g.
heart)
can
robustly
influence
perception
of
exteroceptive
sensations.
This
interoceptive–exteroceptive
interaction
has
been
argued
to
underlie
self-awareness
by
situating
one’s
perceptual
awareness
stimuli
in
context
internal
state,
but
studies
probing
cardiac
influences
on
visual
have
yielded
conflicting
findings.
In
this
study,
we
presented
separate
grating
each
subjects’
eyes
as
a
classic
binocular
rivalry
paradigm
–
measuring
duration
for
which
stimulus
dominates
perception.
However,
caused
gratings
‘pulse’
at
specific
times
relative
real-time
electrocardiogram,
manipulating
whether
pulses
occurred
during
systole,
when
baroreceptors
signal
brain
that
heart
contracted,
or
diastole
are
silent.
The
influential
‘Baroreceptor
Hypothesis’
predicts
effect
baroreceptive
input
should
be
uniformly
suppressive.
contrast,
observed
dominance
durations
increased
systole-entrained
stimuli,
inconsistent
with
Baroreceptor
Hypothesis.
Furthermore,
show
cardiac-dependent
is
preserved
subjects
who
at-chance
discriminating
between
and
diastole-presented
interoceptive
task,
suggesting
our
results
not
dependent
conscious
access
heartbeat
Proceedings of the Royal Society B Biological Sciences,
Год журнала:
2025,
Номер
292(2048)
Опубликована: Июнь 1, 2025
Bodily
organs
such
as
the
heart
and
lungs
play
a
crucial
role
in
maintaining
physiological
homeostasis
continuous
closed-loop
interaction
with
brain.
Beyond
their
vital
role,
recent
developments
have
emphasized
remarkable
contribution
of
bodily
signals
to
high-level
brain
functions.
A
direct
route
by
which
influence
functioning
is
via
modulation
electrophysiological
dynamics,
turn
influences
integration
processing
emotional
self-related
information
regulating
our
conscious
experience.
Drawing
on
investigations,
we
provide
comprehensive
picture
electrophysiology
interoception
its
emotion,
self
consciousness,
focus
cardiac,
respiratory
gastric
interoception.
We
evidence
that
altered
neurophysiological
responses
might
underlie
deficits
psychopathology.
also
summarize
limited
development
during
infancy
adolescence,
well
describing
some
attempts
investigate
causality
neural
mechanisms
underpinning
number
important
areas
for
further
research
are
highlighted.
Heliyon,
Год журнала:
2024,
Номер
10(12), С. e32834 - e32834
Опубликована: Июнь 1, 2024
Body
image
distortion
(BID)
is
a
crucial
aspect
of
anorexia
nervosa
(AN),
leading
to
body
overestimation,
dissatisfaction,
and
low
self-esteem.
BID
significantly
influences
the
onset,
maintenance,
relapse
pathology.
We
assessed
whether
Full
Illusion
(FBI)
using
under
normal-weight
avatars'
bodies
affects
perceptual
schema
estimations
in
both
individuals
with
(AN)
healthy
controls
(HC).
After
each
embodiment
procedure,
we
asked
participants
estimate
width
their
hips
(Perceptual
Image
Task)
minimum
aperture
virtual
door
necessary
pass
through
it
(Body
Schema
Task).
Additionally,
rate
avatars
terms
self-similarity,
attractiveness,
implicit
disgust
(i.e.,
pleasant/unpleasant
odour).
Whereas
AN
(N
=
26)
showed
changes
after
embodying
avatar,
no
were
found
HC
25),
highlighting
increased
bodily
self-plasticity
AN.
Notably,
rated
normal
weight
avatar
as
most
similar
real
body,
which
was
also
considered
least
attractive
repulsive.
These
ratings
correlated
severity.
Furthermore,
at
explicit
level,
all
reported
feeling
thinner
than
usual
underweight
avatar.
Overall,
our
findings
suggest
that
engages
multiple
sensory
channels
(from
visual
olfactory)
components
affective),
offering
potential
targets
for
innovative
non-invasive
treatments
aimed
modifying
flexible
aspects
representation.
