Neurophotonics,
Journal Year:
2022,
Volume and Issue:
10(01)
Published: Oct. 12, 2022
Functional
near-infrared
spectroscopy
(fNIRS)
is
a
promising
tool
for
neurofeedback
(NFB)
or
brain-computer
interfaces
(BCIs).
However,
fNIRS
signals
are
typically
highly
contaminated
by
systemic
activity
(SA)
artifacts,
and,
if
not
properly
corrected,
NFB
BCIs
run
the
risk
of
being
based
on
noise
instead
brain
activity.
This
can
likely
be
reduced
correcting
SA,
in
particular
when
short-distance
channels
(SDCs)
available.
Literature
comparing
correction
methods
with
and
without
SDCs
still
sparse,
specifically
comparisons
considering
single
trials
lacking.
Neurophotonics,
Journal Year:
2017,
Volume and Issue:
4(4), P. 041403 - 041403
Published: Aug. 1, 2017
Safe
locomotion
is
a
crucial
aspect
of
human
daily
living
that
requires
well-functioning
motor
control
processes.
The
neuromotor
activities
such
as
walking
relies
on
the
complex
interaction
subcortical
and
cortical
areas.
Technical
developments
in
neuroimaging
systems
allow
quantification
activation
during
execution
tasks.
Functional
near-infrared
spectroscopy
(fNIRS)
seems
to
be
promising
tool
monitor
processes
areas
freely
moving
subjects.
However,
so
far,
there
no
established
standardized
protocol
regarding
application
data
processing
fNIRS
signals
limits
comparability
among
studies.
Hence,
this
systematic
review
aimed
summarize
current
knowledge
about
studies
dealing
with
or
postural
Fifty-six
articles
an
initial
yield
1420
publications
were
reviewed
information
methodology,
processing,
findings
extracted.
Based
our
results,
we
outline
recommendations
respect
design
Future
perspectives
measuring
movement
science
are
discussed.
Frontiers in Aging Neuroscience,
Journal Year:
2016,
Volume and Issue:
8
Published: April 11, 2016
Different
types
of
exercise
training
have
the
potential
to
induce
structural
and
functional
brain
plasticity
in
elderly.
Thereby,
adaptations
were
observed
during
cognitive
tasks
magnetic
resonance
imaging
studies
that
correlated
with
improved
performance.
This
study
aimed
investigate
if
induces
challenging
treadmill
walking
elicits
associated
changes
executive
functions.
Forty-two
elderly
participants
recruited
randomly
assigned
either
interactive
cognitive-motor
video
game
dancing
(DANCE)
or
balance
stretching
(BALANCE).
The
8-week
intervention
included
three
sessions
30
min
per
week
was
completed
by
33
(mean
age
74.9
±
6.9
years).
Prefrontal
cortex
(PFC)
activity
preferred
fast
speed
on
a
assessed
applying
near
infrared
spectroscopy
pre-
post-intervention.
Additionally,
functions
comprising
shifting,
inhibition,
working
memory
assessed.
results
showed
both
interventions
significantly
reduced
left
right
hemispheric
PFC
oxygenation
acceleration
(p
<
0.05
trend,
r
=
0.25-0.36),
while
DANCE
larger
reduction
at
end
30-s
task
compared
BALANCE
[F
(1,
31)
3.54,
p
0.035,
0.32].
These
induced
modulations
0.31-0.50).
reductions
may
release
resources
focus
attention
other
processes
walking,
which
could
be
relevant
improve
mobility
falls
prevention
provides
deeper
understanding
associations
between
training,
function
cognition
older
adults.
Frontiers in Human Neuroscience,
Journal Year:
2017,
Volume and Issue:
11
Published: April 10, 2017
This
review
examined
83
articles
using
neuroimaging
modalities
to
investigate
the
neural
correlates
underlying
static
and
dynamic
human
balance
control,
with
aims
support
future
mobile
research
in
control
domain.
Furthermore,
this
analyzed
mobility
of
hardware
paradigms
as
well
analytical
methodology
identify
remove
movement
artifact
acquired
brain
signal.
We
found
that
majority
tasks
utilized
mechanical
perturbations
invoke
feet-in-place
responses
(27
out
38
studies),
while
cognitive
dual-task
conditions
were
commonly
used
challenge
(20
32
studies).
While
frequency
analysis
event
related
potential
characteristics
supported
enhanced
activation
during
studies
was
by
spatial
analysis.
Twenty-three
50
utilizing
EEG
independent
component
artifacts
from
signals.
Lastly,
only
eight
truly
systems.
provides
evidence
an
increase
tasks,
regardless
mechanical,
cognitive,
or
sensory
challenges.
current
body
literature
demonstrates
use
advanced
signal
processing
methodologies
analyze
activity
movement.
However,
nature
conventional
prevent
full
limit
our
knowledge
mechanisms
control.
Scientific Reports,
Journal Year:
2017,
Volume and Issue:
7(1)
Published: June 16, 2017
This
study
investigated
effects
of
cognitive
and
motor
dual
task
gait
training
on
performance
in
stroke.
Participants
(n
=
28)
were
randomly
assigned
to
(CDTT),
(MDTT),
or
conventional
physical
therapy
(CPT)
group.
CDTT
MDTT
group
practiced
the
tasks
respectively
during
walking.
CPT
received
strengthening,
balance,
training.
The
intervention
was
30
min/session,
3
sessions/week
for
4
weeks.
Three
test
conditions
evaluate
single
walking,
walking
while
performing
(serial
subtraction),
(tray-carrying).
Parameters
included
speed,
cost
speed
(DTC-speed),
cadence,
stride
time,
length.
After
CDTT,
cognitive-motor
(stride
length
DTC-speed)
improved
(p
0.021;
p
0.015).
MDTT,
(gait
length,
0.008;
0.008
respectively).
It
seems
that
although
such
improvements
did
not
reach
significant
difference.
Therefore,
different
types
can
be
adopted
enhance
Pilot and Feasibility Studies,
Journal Year:
2016,
Volume and Issue:
2(1)
Published: Sept. 22, 2016
Many
patients
with
Parkinson's
disease
(PD)
have
difficulties
in
performing
a
second
task
during
walking
(i.e.,
dual
walking).
Functional
near-infrared
spectroscopy
(fNIRS)
is
promising
approach
to
study
the
presumed
contribution
of
dysfunction
within
prefrontal
cortex
(PFC)
such
difficulties.
In
this
pilot
study,
we
examined
feasibility
using
new
portable
and
wireless
fNIRS
device
measure
PFC
activity
different
protocols
PD.
Specifically,
tested
whether
PD
were
able
perform
protocol
typical
signal
neuronal
activity.
We
included
14
(age
71.2
±
5.4
years,
Hoehn
Yahr
stage
II/III).
The
consisted
five
repetitions
three
conditions:
while
(i)
counting
forwards,
(ii)
serially
subtracting,
(iii)
reciting
digit
spans.
Ability
complete
protocol,
perceived
exertion,
burden
devices,
concentrations
oxygenated
(O2Hb)
deoxygenated
(HHb)
hemoglobin
from
left
right
measured.
Two
participants
unable
due
fatigue
mobility
safety
concerns.
remaining
12
experienced
no
two
devices
completed
ease.
Bilateral
O2Hb
increased
subtracting
(left
0.46
μmol/L,
95
%
confidence
interval
(CI)
0.12–0.81,
0.49
CI
0.14–0.84)
spans
0.36
0.03–0.70,
0.44
0.09–0.78)
when
compared
rest.
HHb
did
not
differ
between
tasks
These
findings
suggest
that
feasible
walking.
Future
studies
should
reduce
level
noise
inter-individual
variability
enable
measuring
differences
conditions
across
health
states.
PeerJ,
Journal Year:
2019,
Volume and Issue:
7, P. e6833 - e6833
Published: May 3, 2019
Cognitive
processes
are
required
during
walking
to
appropriately
respond
environmental
and
task
demands.
There
now
many
studies
that
have
used
functional
Near-Infrared
Spectroscopy
(fNIRS)
record
brain
activation
investigate
neural
bases
of
cognitive
contributions
in
gait.
The
aim
this
systematic
review
was
summarize
the
published
research
regarding
Prefrontal
cortical
(PFC)
patterns
simple
complex
tasks
young
adults,
older
adults
clinical
groups
with
balance
disorders
using
fNIRS.
Our
secondary
evaluate
each
included
study
based
on
methodological
reporting
criteria
important
for
good
data
quality.We
conducted
searches
June
2018
four
databases:
Embase,
PubMed,
Scopus
PsycINFO.
strategy
search
was:
(((((near
infrared
spectroscopy)
OR
near
nirs)
fnirs)
AND
(((gait)
walking)
locomotion)
(((((young)
adult)
older)
elderly)
NOT
children))
(((Brain)
cortex)
cortical)
our
search.
papers
met
specific
criteria:
(i)
fNIRS
measure
PFC
patterns;
(ii)
(simple
complex)
and;
(iii)
assessed
people,
people
and/or
disorders.Thirty
five
(describing
75
comparisons)
308
retrieved
through
inclusion
criteria.
Based
6
considerations,
20
were
high
quality,
10
medium
quality
5
low
quality.
Eleven/20
comparisons
23/37
15/18
reported
increased
complexity.
majority
verbal
fluency,
counting
backwards
or
motor
increases
(83%,
64%
58%
these
studies,
respectively).
In
contrast,
no
found
visual
activation.Increased
most
common
involved
walks
comprising
fluency
arithmetic
tasks.
Clinical
generally
showed
irrespective
type
performed
which
suggests
require
more
attentional
resources
safe
walking.
Systematic
registration
number:
PROSPERO
2017
-
CRD42017059501.
Brain Sciences,
Journal Year:
2021,
Volume and Issue:
11(3), P. 291 - 291
Published: Feb. 26, 2021
(1)
Functional
near-infrared
spectroscopy
(fNIRS)
provides
a
useful
tool
for
monitoring
brain
activation
changes
while
walking
in
adults
with
neurological
disorders.
When
combined
dual
task
paradigms,
fNIRS
allows
to
be
monitored
when
individuals
concurrently
attend
multiple
tasks.
However,
differences
baseline,
and
coverage
of
cortical
areas,
presents
uncertainty
the
interpretation
overarching
findings.
(2)
Methods:
By
conducting
systematic
review
35
studies
meta-analysis
75
effect
sizes
from
17
on
or
without
disorders,
we
show
that
performance
obstacle
walking,
serial
subtraction
letter
generation
tasks
result
significant
increases
prefrontal
cortex
relative
standing
baselines.
(3)
Results:
Overall,
find
have
largest
between
single
gait
are
seen
persons
sclerosis
stroke.
(4)
Conclusions:
Older
disease
generally
showed
increased
suggesting
use
more
attentional
resources
during
which
could
lead
fall
risk
mobility
impairments.
PROSPERO
ID:
235228.
Frontiers in Human Neuroscience,
Journal Year:
2021,
Volume and Issue:
14
Published: Jan. 25, 2021
Human
gait
is
a
complex
activity
that
requires
high
coordination
between
the
central
nervous
system,
limb,
and
musculoskeletal
system.
More
research
needed
to
understand
latter
coordination's
complexity
in
designing
better
more
effective
rehabilitation
strategies
for
disorders.
Electroencephalogram
(EEG)
functional
near-infrared
spectroscopy
(fNIRS)
are
among
most
used
technologies
monitoring
brain
activities
due
portability,
non-invasiveness,
relatively
low
cost
compared
others.
Fusing
EEG
fNIRS
well-known
established
methodology
proven
enhance
brain–computer
interface
(BCI)
performance
terms
of
classification
accuracy,
number
control
commands,
response
time.
Although
there
has
been
significant
exploring
hybrid
BCI
(hBCI)
involving
both
different
types
tasks
human
activities,
remains
still
underinvestigated.
In
this
article,
we
aim
shed
light
on
recent
development
analysis
using
EEG-fNIRS-based
The
current
review
followed
guidelines
preferred
reporting
items
systematic
reviews
meta-Analyses
(PRISMA)
during
data
collection
selection
phase.
review,
put
particular
focus
commonly
signal
processing
machine
learning
algorithms,
as
well
survey
potential
applications
analysis.
We
distill
some
critical
findings
follows.
First,
hardware
specifications
experimental
paradigms
should
be
carefully
considered
because
their
direct
impact
quality
assessment.
Second,
since
modalities,
fNIRS,
sensitive
motion
artifacts,
instrumental,
physiological
noises,
quest
robust
sophisticated
algorithms.
Third,
temporal
spatial
features,
obtained
by
virtue
fusing
associated
with
cortical
activation,
can
help
identify
correlation
activation
gait.
conclusion,
hBCI
(EEG
+
fNIRS)
system
not
yet
much
explored
lower
limb
its
higher
limb.
Existing
systems
tend
only
one
modality.
foresee
vast
adopting
Imminent
technical
breakthroughs
expected
assistive
devices
Monitor
neuro-plasticity
neuro-rehabilitation.
However,
although
those
perform
controlled
environment
when
it
comes
them
certified
medical
device
real-life
clinical
applications,
long
way
go.