Journal of Neural Engineering,
Год журнала:
2022,
Номер
20(1), С. 016012 - 016012
Опубликована: Дек. 19, 2022
Objective.
Spontaneous
fluctuations
of
cerebral
hemodynamics
measured
by
functional
magnetic
resonance
imaging
(fMRI)
are
widely
used
to
study
the
network
organization
brain.
The
temporal
correlations
among
ultra-slow,
<0.1
Hz
across
brain
regions
interpreted
as
connectivity
maps
and
for
diagnostics
neurological
disorders.
However,
despite
interest
narrowed
in
ultra-slow
fluctuations,
hemodynamic
activity
that
exists
beyond
frequency
range
could
contribute
connectivity,
which
remains
unclear.Approach.
In
present
study,
we
have
brain-wide
human
participants
with
near-infrared
spectroscopy
(fNIRS)
a
whole-head,
cap-based
high-density
montage
at
sampling
rate
6.25
Hz.
addition,
acquired
resting
state
fMRI
scans
same
group
cross-modal
evaluation
maps.
Then
fNIRS
data
were
deliberately
down-sampled
typical
∼0.5
resulted
differential
subject
k-means
clustering.Main
results.
Our
diffuse
optical
topographical
analysis
revealed
default
mode
(DMN)
spontaneous
deoxygenated
oxygenated
hemoglobin
changes,
remarkably
resemble
derived
from
participants.
Moreover,
shown
aliased
activities
signals
altered
patterns,
resulting
hemodynamics.Significance.The
results
first
time
demonstrated
broadly
accessible
modality
can
image
resting-state
posterior
midline,
prefrontal
parietal
structures
DMN
brain,
consistent
pattern
fMRI.
Further
empowered
fast
fNIRS,
our
findings
suggest
presence
current
understanding
organization.
Sensors,
Год журнала:
2022,
Номер
22(15), С. 5865 - 5865
Опубликована: Авг. 5, 2022
Electroencephalography
(EEG)
and
functional
near-infrared
spectroscopy
(fNIRS)
stand
as
state-of-the-art
techniques
for
non-invasive
neuroimaging.
On
a
unimodal
basis,
EEG
has
poor
spatial
resolution
while
presenting
high
temporal
resolution.
In
contrast,
fNIRS
offers
better
resolution,
though
it
is
constrained
by
its
One
important
merit
shared
the
that
both
modalities
have
favorable
portability
could
be
integrated
into
compatible
experimental
setup,
providing
compelling
ground
development
of
multimodal
fNIRS-EEG
integration
analysis
approach.
Despite
growing
number
studies
using
concurrent
designs
reported
in
recent
years,
methodological
reference
past
remains
unclear.
To
fill
this
knowledge
gap,
review
critically
summarizes
status
methods
currently
used
studies,
an
up-to-date
overview
guideline
future
projects
to
conduct
studies.
A
literature
search
was
conducted
PubMed
Web
Science
through
31
August
2021.
After
screening
qualification
assessment,
92
involving
data
recordings
analyses
were
included
final
review.
Specifically,
three
categories
analyses,
including
EEG-informed
fNIRS-informed
parallel
identified
explained
with
detailed
description.
Finally,
we
highlighted
current
challenges
potential
directions
research.
NeuroImage,
Год журнала:
2023,
Номер
280, С. 120354 - 120354
Опубликована: Сен. 4, 2023
Hyperscanning
is
a
form
of
neuroimaging
experiment
where
the
brains
two
or
more
participants
are
imaged
simultaneously
whilst
they
interact.
Within
domain
social
neuroscience,
hyperscanning
increasingly
used
to
measure
inter-brain
coupling
(IBC)
and
explore
how
brain
responses
change
in
tandem
during
interaction.
In
addition
cognitive
research,
some
have
suggested
that
quantification
interplay
between
interacting
can
be
as
biomarker
for
variety
mechanisms
aswell
investigate
mental
health
developmental
conditions
including
schizophrenia,
anxiety
autism.
However,
many
different
methods
been
quantify
this
lead
questions
about
comparability
across
studies
reduce
research
reproducibility.
Here,
we
review
quantifying
IBC,
suggest
ways
moving
forward.
Following
PRISMA
guidelines,
reviewed
215
studies,
four
imaging
modalities:
functional
near-infrared
spectroscopy
(fNIRS),
magnetic
resonance
(fMRI),
electroencephalography
(EEG)
magnetoencephalography
(MEG).
Overall,
identified
total
27
compute
IBC.
The
most
common
modality
fNIRS,
by
119
89
which
adopted
wavelet
coherence.
Based
on
results
literature
survey,
first
report
summary
statistics
field,
followed
brief
overview
each
signal
obtained
from
hyperscanning.
We
then
discuss
rationale,
assumptions
suitability
method
modalities
Finally,
issues
surrounding
interpretation
method.
Journal of Neuroscience,
Год журнала:
2023,
Номер
43(14), С. 2568 - 2578
Опубликована: Март 3, 2023
A
growing
number
of
social
interactions
are
taking
place
virtually
on
videoconferencing
platforms.
Here,
we
explore
potential
effects
virtual
observed
behavior,
subjective
experience,
and
neural
"single-brain"
"interbrain"
activity
via
functional
near-infrared
spectroscopy
neuroimaging.
We
scanned
a
total
36
human
dyads
(72
participants,
males,
females)
who
engaged
in
three
naturalistic
tasks
(i.e.,
problem-solving,
creative-innovation,
socio-emotional
task)
either
an
in-person
or
(Zoom)
condition.
also
coded
cooperative
behavior
from
audio
recordings.
reduced
conversational
turn-taking
during
the
Given
that
was
associated
with
other
metrics
positive
interaction
(e.g.,
cooperation
task
performance),
this
measure
may
be
indicator
prosocial
interaction.
In
addition,
altered
patterns
averaged
dynamic
interbrain
coherence
interactions.
Interbrain
were
characteristic
condition
turn-taking.
These
insights
can
inform
design
engineering
next
generation
technology.
Functional
near-infrared
spectroscopy
(fNIRS)
is
an
optical
imaging
technique
for
assessing
human
brain
activity
by
noninvasively
measuring
the
fluctuation
of
cerebral
oxygenated-
and
deoxygenated-hemoglobin
concentrations
associated
with
neuronal
activity.
Owing
to
its
superior
mobility,
low
cost,
good
tolerance
motion,
past
few
decades
have
witnessed
a
rapid
increase
in
research
clinical
use
fNIRS
variety
psychiatric
disorders.
In
this
perspective
article,
we
first
briefly
summarize
state-of-the-art
concerning
psychiatry.
particular,
highlight
diverse
applications
research,
advanced
development
instruments,
novel
study
designs
exploring
We
then
discuss
some
open
challenges
share
our
perspectives
on
future
practice.
conclude
that
holds
promise
becoming
useful
tool
settings
respect
developing
closed-loop
systems
improving
individualized
treatments
diagnostics.
Neuropsychologia,
Год журнала:
2022,
Номер
174, С. 108316 - 108316
Опубликована: Июль 8, 2022
Inter-brain
synchronization
during
social
interaction
has
been
linked
with
several
positive
phenomena,
including
closeness,
cooperation,
prosociality,
and
team
performance.
However,
the
temporal
dynamics
of
inter-brain
collaboration
are
not
yet
fully
understood.
Furthermore,
increasingly
happening
online,
dependence
phase
oscillatory
activity
on
physical
presence
is
an
important
but
understudied
question.
In
this
study,
physically
isolated
participants
performed
a
collaborative
coordination
task
in
form
cooperative
multiplayer
game.
We
measured
EEG
from
42
subjects
working
together
as
pairs
task.
During
measurement,
only
between
happened
through
on-screen
movement
racing
car,
controlled
by
button
presses
both
distinct
roles,
either
controlling
speed
or
direction
car.
Pairs
were
found
to
have
elevated
neural
coupling
alpha,
beta,
gamma
frequency
bands,
compared
performance
matched
false
pairs.
Higher
synchrony
was
associated
better
momentary
within
dyads
higher
alpha
mean
across
dyads.
These
results
line
previous
findings
increased
interaction,
show
that
occurs
online
real-time
joint
without
any
co-presence
video
audio
connection.
Synchrony
decreased
playing
session,
be
second
session
first.
The
novel
paradigm,
developed
for
measurement
performance,
demonstrates
changes
can
observed
continuously
interaction.
Oxford Open Neuroscience,
Год журнала:
2024,
Номер
3
Опубликована: Янв. 1, 2024
Abstract
How
does
co-presence
change
our
neural
experience
of
the
world?
Can
a
conversation
how
we
synchronise
with
partner
during
later
events?
Using
fNIRS
hyperscanning,
measured
brain
activity
from
27
pairs
familiar
adults
simultaneously
over
frontal,
temporal
and
parietal
regions
bilaterally,
as
they
co-watched
two
different
episodes
short
cartoon.
In-between
episodes,
each
pair
engaged
in
face-to-face
on
topics
unrelated
to
cartoon
episodes.
Brain
synchrony
was
calculated
using
wavelet
transform
coherence
computed
separately
for
real
shuffled
pseudo)
pairs.
Findings
reveal
that
showed
increased
right
Dorso-Lateral
Pre-Frontal
cortex
(DLPFC)
Superior
Parietal
Lobe
(SPL),
compared
pseudo
(who
had
never
seen
other
watched
same
movie
at
times;
uncorrected
multiple
comparisons).
In
addition,
co-watching
after
associated
greater
TPJ
before
conversation,
this
effect
significantly
higher
other)
someone
else;
The
present
study
has
shed
light
role
social
interaction
modulating
across
people
not
just
interaction,
but
even
subsequent
non-social
activities.
These
results
have
implications
growing
domain
naturalistic
neuroimaging
interactive
neuroscience.
Brain Sciences,
Год журнала:
2022,
Номер
12(5), С. 635 - 635
Опубликована: Май 11, 2022
Interpersonal
brain
synchrony
(IBS)
during
cooperation
has
not
been
systematically
investigated.
To
address
this
research
gap,
study
assessed
neural
a
cooperative
jigsaw
puzzle
solving
task
using
functional
near-infrared
spectroscopy
(fNIRS)-based
hyperscanning.
IBS
was
measured
for
successful
and
failed
tasks
in
31
dyads
which
the
partners
were
familiar
or
unknown
to
each
other.
No
significant
difference
observed
between
different
types
of
partnership;
however,
stronger
within
regions
pars
triangularis
Broca's
area,
right
frontopolar
cortex,
temporoparietal
junction
success.
These
results
highlight
effect
better
performance
on
first
time
further
extend
understanding
basis
cooperation.
NeuroImage,
Год журнала:
2025,
Номер
unknown, С. 121042 - 121042
Опубликована: Янв. 1, 2025
Interpersonal
emotion
regulation
(IER)
refers
to
the
dynamic
process
where
a
regulator
employs
specific
strategies
alleviate
target's
distress.
It
remains
unclear
whether
successful
IER
could
facilitate
interpersonal
relationship
closeness
(IRC).
The
present
study
aimed
explore
IER,
based
on
two
typical
strategies-cognitive
reappraisal
(CR)
and
expressive
suppression
(ES)-for
down-regulating
negative
emotions,
enhance
IRC
among
friend
dyads,
identify
underlying
neural
correlates
of
this
using
functional
near-infrared
spectroscopy
system.
Seventy-four
female
dyads
(friends)
were
randomly
assigned
one
strategy
groups
(CR
vs.
ES),
with
participant
as
target
other
regulator.
Our
finds
revealed
that
both
have
down-regulated
however,
CR
was
associated
more
outcomes
(more
improvement
targets'
emotions;
higher
IRC)
than
ES
strategy.
recruited
enhanced
brain
synchronization
(IBS)
prefrontal
temporal
areas
dyads.
IBS
above-mentioned
networks
in
sadness,
reversed
pattern
found
anger,
inferring
successive
effective
anger.
increased
these
regions
played
mediational
role
between
effectiveness
emotions
increment
IRC.
findings
coupling
mechanism
through
which
fostered
supportive
social
bonds.