Biomedical Signal Processing and Control,
Journal Year:
2024,
Volume and Issue:
96, P. 106646 - 106646
Published: July 18, 2024
Amnestic
mild
cognitive
impairment
(aMCI)
is
the
prodromal
period
of
more
serious
neurodegenerative
diseases
(e.g.,
Alzheimer's
disease),
characterized
by
declines
in
memory
and
thinking
abilities.
Auxiliary
assessment
early
diagnosis
aMCI
are
crucial
preventing
continued
deterioration
abilities;
nevertheless,
this
task
poses
a
formidable
challenge
due
to
inconspicuous
nature
symptoms.
Functional
near-infrared
spectroscopy
(fNIRS)
non-invasive,
low-cost,
user-friendly
neuroimaging
technique,
which
capable
detecting
subtle
changes
brain
activity
among
different
subjects.
Moreover,
multimodal
fusion
can
assess
cognition
status
from
perspectives
enhance
auxiliary
accuracy
significantly.
This
paper
proposes
an
fNIRS
representation
fNIRS-scales
method
for
aMCI.
Specifically,
we
convert
one-dimensional
time-series
signals
into
two-dimensional
images
with
Gramian
Angular
Field
achieve
end-to-end
convolutional
neural
network.
Then,
integrate
extracted
features
scales
at
decision-making
level
improve
aMCI,
employing
data
balance
strategy
prevent
biased
prediction.
What
more,
based
on
features,
also
propose
data-driven
scales-screening
help
physician
higher
efficiency.
We
conducted
experiments
86
subjects
(including
53
patients
33
normal
controls)
recruited
Foshan
First
People's
Hospital.
The
reaches
88.02%
93.90%
further
fusion,
respectively.
With
scales-screening,
delete
50%
scales,
reducing
test
time
but
only
losing
2.54%
accuracy.
Brain and Cognition,
Journal Year:
2024,
Volume and Issue:
180, P. 106200 - 106200
Published: June 21, 2024
Research
investigating
the
neural
processes
related
to
music
perception
and
production
constitutes
a
well-established
field
within
cognitive
neurosciences.
While
most
neuroimaging
tools
have
limitations
in
studying
complexity
of
musical
experiences,
functional
Near-Infrared
Spectroscopy
(fNIRS)
represents
promising,
relatively
new
tool
for
both
laboratory
ecological
settings,
which
is
also
suitable
typical
pathological
populations
across
development.
Here
we
systematically
review
fNIRS
studies
on
cognition,
highlighting
prospects
potentialities.
We
include
an
overview
basic
theory,
together
with
brief
comparison
characteristics
other
tools.
Fifty-nine
meeting
inclusion
criteria
(i.e.,
using
as
primary
stimulus)
are
presented
five
thematic
sections.
Critical
discussion
methodology
leads
us
propose
guidelines
good
practices
aiming
robust
signal
analyses
reproducibility.
A
continuously
updated
world
map
proposed,
including
information
from
criteria.
It
provides
organized,
accessible,
updatable
reference
database,
could
serve
catalyst
future
collaborations
community.
In
conclusion,
shows
potential
music,
particularly
contexts
special
populations,
aligning
current
research
priorities
cognition.
Brain Sciences,
Journal Year:
2024,
Volume and Issue:
14(8), P. 820 - 820
Published: Aug. 16, 2024
Electroencephalogram
(EEG)
and
functional
near-infrared
spectroscopy
(fNIRS)
can
objectively
reflect
a
person’s
emotional
state
have
been
widely
studied
in
emotion
recognition.
However,
the
effective
feature
fusion
discriminative
learning
from
EEG–fNIRS
data
is
challenging.
In
order
to
improve
accuracy
of
recognition,
graph
convolution
capsule
attention
network
model
(GCN-CA-CapsNet)
proposed.
Firstly,
signals
are
collected
50
subjects
induced
by
video
clips.
And
then,
features
EEG
fNIRS
extracted;
fused
generate
higher-quality
primary
capsules
with
Pearson
correlation
adjacency
matrix.
Finally,
module
introduced
assign
different
weights
capsules,
selected
better
classification
dynamic
routing
mechanism.
We
validate
efficacy
proposed
method
on
our
dataset
an
ablation
study.
Extensive
experiments
demonstrate
that
GCN-CA-CapsNet
achieves
more
satisfactory
performance
against
state-of-the-art
methods,
average
increase
3–11%.
Frontiers in Psychiatry,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 3, 2025
This
study
aims
to
evaluate
the
intervention
effect
of
intermittent
Theta
burst
stimulation
(iTBS)
on
bilateral
dorsomedial
prefrontal
cortex
(DMPFC)
for
negative
symptoms
in
schizophrenia
using
functional
near-infrared
spectroscopy
(fNIRS)
confirm
therapeutic
significance
DMPFC
treating
and
provide
new
evidence
treatment
research.
Thirty-nine
patients
with
mild
cognitive
impairment
were
randomly
divided
into
a
group
(n=20)
control
(n=19).
The
received
iTBS
DMPFC.
sham
treatment.
Negative
symptoms,
function,
emotional
state,
social
function
assessed
at
pre-treatment,
post-treatment,
4-,
8-,
12-week
follow-ups.
Brain
activation
regions
interest
(ROIs)
was
evaluated
through
verbal
fluency
tasks.
Changes
scale
scores
analyzed
by
repeated
measures
ANOVA.
After
20
sessions
iTBS,
Scale
Assessment
Symptoms
(SANS)
total
sub-scale
significantly
improved
group,
statistically
significant
differences.
SANS
differed
between
pre-
post-treatment
both
groups,
markedly
lower
than
pre-treatment
better
efficacy
group.
However,
there
no
difference
function.
ROIs
did
not
differ
groups
before
intervention.
treatment,
higher
controls,
difference.
Regarding
connectivity,
small-world
properties
Sigma
Gamma
enhanced.
can
effectively
alleviate
enhance
schizophrenia.
IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 10, 2025
Near-infrared
spectroscopy
(NIRS)
is
a
non-invasive
monitoring
technique
that
utilizes
light
transmission
and
absorption
to
continuously
evaluate
regional
tissue
oxygen
saturation,
delivery,
metabolism.
Widely
adopted
in
modern
clinical
practice,
NIRS
particularly
effective
assessing
cerebral
oxygenation,
enabling
the
early
detection
of
impaired
perfusion.
Grounded
Beer–Lambert
law,
relies
on
characteristics
oxyhemoglobin
deoxyhemoglobin
as
primary
chromophores
biological
tissues.
This
chapter
provides
comprehensive
overview
technology
its
applications
biomedical
fields.
It
begins
by
discussing
fundamental
assumptions,
advantages,
limitations
NIRS,
along
with
typical
structure
system.
Following
this,
principles
properties
are
explored
depth.
The
then
delves
into
brain
monitoring,
focusing
oxygenation
hemodynamics.
Additionally,
it
examines
use
cardiac
applications,
highlighting
both
potential
challenges
involved.
role
machine
learning
signal
processing
also
demonstrated.
Finally,
integration
other
imaging
modalities,
including
optical
coherence
tomography,
electroencephalography,
ultrasound,
introduced
illustrate
capabilities
multi-modality
systems.
Frontiers in Neuroscience,
Journal Year:
2025,
Volume and Issue:
19
Published: Feb. 4, 2025
Disorders
of
consciousness
(DoC)
resulting
from
severe
brain
injury
present
substantial
challenges
in
rehabilitation
due
to
disruptions
network
connectivity,
particularly
within
the
frontal-parietal
critical
for
awareness.
Transcutaneous
auricular
vagus
nerve
stimulation
(taVNS)
has
emerged
as
a
promising
non-invasive
intervention;
however,
precise
mechanisms
through
which
it
influences
cortical
function
DoC
patients
remain
unclear.
This
study
describes
effects
taVNS
on
fronto-parietal
connectivity
and
arousal
77-year-old
female
patient
with
unresponsive
wakefulness
syndrome
(UWS).
The
received
bilateral
1
h
daily
over
3
months,
functional
(FC)
frontoparietal
assessed
using
near-infrared
spectroscopy
(fNIRS)
behavioral
responsiveness
evaluated
Coma
Recovery
Scale-Revised
(CRS-R).
After
intervention,
mean
FC
was
enhanced
0.06
(SD
=
0.31)
0.33
0.28)
network.
were
subdivided
into
12
regions
interest
(ROIs)
determined
that
between
left
dorsolateral
prefrontal
cortex
(DLPFC)
ROIs
±
0.41
before
intervention
0.55
0.24
after
intervention.
Behavioral
improvements
evidenced
by
an
increase
CRS-R
scores
2
14,
marking
patient's
transition
UWS
minimally
conscious
state
plus
(MCS+).
Additionally,
associated
auditory
sensory
processing
showed
increased
engagement,
supporting
positive
impact
responsiveness.
suggests
its
value
adjunctive
therapy
patients.
Further
studies
are
necessary
confirm
these
wider
population
refine
strategy
clinical
application
taVNS.