Linear and nonlinear analysis of multimodal physiological data for affective arousal recognition
Ali Khaleghi,
No information about this author
Kian Shahi,
No information about this author
Maryam Saidi
No information about this author
et al.
Cognitive Neurodynamics,
Journal Year:
2024,
Volume and Issue:
18(5), P. 2277 - 2288
Published: March 6, 2024
Language: Английский
Deep learning-based classification of dementia using image representation of subcortical signals
Shivani Ranjan,
No information about this author
Ayush Tripathi,
No information about this author
Harshal Shende
No information about this author
et al.
BMC Medical Informatics and Decision Making,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: March 6, 2025
Dementia
is
a
neurological
syndrome
marked
by
cognitive
decline.
Alzheimer's
disease
(AD)
and
frontotemporal
dementia
(FTD)
are
the
common
forms
of
dementia,
each
with
distinct
progression
patterns.
Early
accurate
diagnosis
cases
(AD
FTD)
crucial
for
effective
medical
care,
as
both
conditions
have
similar
early-symptoms.
EEG,
non-invasive
tool
recording
brain
activity,
has
shown
potential
in
distinguishing
AD
from
FTD
mild
impairment
(MCI).
This
study
aims
to
develop
deep
learning-based
classification
system
analyzing
EEG
derived
scout
time-series
signals
regions,
specifically
hippocampus,
amygdala,
thalamus.
Scout
time
series
extracted
via
standardized
low-resolution
electromagnetic
tomography
(sLORETA)
technique
utilized.
The
converted
image
representations
using
continuous
wavelet
transform
(CWT)
fed
input
learning
models.
Two
high-density
datasets
utilized
validate
efficacy
proposed
method:
online
BrainLat
dataset
(128
channels,
comprising
16
AD,
13
FTD,
19
healthy
controls
(HC))
in-house
IITD-AIIA
(64
including
subjects
10
9
MCI,
8
HC).
Different
strategies
classifier
combinations
been
mapping
classes
data
sets.
best
results
were
achieved
product
probabilities
classifiers
left
right
subcortical
regions
conjunction
DenseNet
model
architecture.
It
yield
accuracies
94.17
%
77.72
on
datasets,
respectively.
highlight
that
representation-based
approach
differentiate
various
stages
dementia.
pave
way
more
early
diagnosis,
which
treatment
management
debilitating
conditions.
Language: Английский
BiCurNet: Premovement EEG-Based Neural Decoder for Biceps Curl Trajectory Estimation
IEEE Transactions on Instrumentation and Measurement,
Journal Year:
2023,
Volume and Issue:
73, P. 1 - 11
Published: Dec. 25, 2023
Kinematic
parameter
(KP)
estimation
from
early
electroencephalogram
(EEG)
signals
is
essential
for
positive
augmentation
using
wearable
robots.
However,
surface
EEG-based
KP
studies
are
sparse
in
the
literature.
In
this
study,
simultaneous
EEG
and
kinematics
data
of
five
participants
collected
during
biceps-curl
motor
task.
The
feasibility
KPs
demonstrated
brain
source
imaging
(BSI).
Discrete
wavelet
transform
(DWT)
utilized
subband
extraction
preprocessed
signals.
Further,
spherical
head
harmonics
domain
features
extracted
subbands
A
deep-learning-based
decoding
model,
BiCurNet,
proposed
spatial
model
utilizes
lightweight
architecture
with
depthwise
separable
convolution
layers
a
customized
attention
module
(CAM).
best
Pearson
correlation
coefficient
(PCC)
between
estimated
actual
trajectory
0.7
achieved
when
combined
(spatial
domain)
delta
band
utilized.
Intra-
intersubject
performance
analyses
performed
to
evaluate
subject-adaptability
model.
BiCurNet
compared
existing
multilinear
regression
(mLR)
counterpart.
robustness
additionally
illustrated
an
ablation
study.
robust
will
facilitate
real-time
implementation
deployment
on
microcontroller
control
BCI-based
Language: Английский
Decoding lower-limb kinematic parameters during pedaling tasks using deep learning approaches and EEG
Medical & Biological Engineering & Computing,
Journal Year:
2024,
Volume and Issue:
62(12), P. 3763 - 3779
Published: July 19, 2024
Language: Английский
Classification of Human Concentration Levels Based on Electroencephalography Signals
B Siregar,
No information about this author
Grace Florence,
No information about this author
Seniman Seniman
No information about this author
et al.
JOIV International Journal on Informatics Visualization,
Journal Year:
2024,
Volume and Issue:
8(2), P. 923 - 923
Published: May 31, 2024
Concentration
denotes
the
capability
to
direct
one's
attention
a
specific
subject
matter.
Presently,
within
era
characterized
by
an
overwhelming
abundance
of
information
inundating
human
existence,
distractions
frequently
impede
concentration,
thereby
influencing
depth
knowledge
acquisition.
Various
elements
contribute
decline
in
including
diminished
metabolic
states,
inadequate
sleep,
and
engaging
multiple
tasks
simultaneously.
The
cognitive
state
individual
during
process
thinking
can
be
assessed
through
analysis
electroencephalography
signals.
primary
objective
this
investigation
is
facilitate
experts'
interpretation
signal
outcomes
for
categorizing
concentration
levels.
dataset
utilized
examination
comprises
unprocessed
EEG
data
obtained
from
observing
individuals
both
relaxation
states.
After
preprocessing,
feature
extraction
executed,
classification
performed
using
Support
Vector
Machine
technique.
outcome
study
reveals
accuracy
rate
84%.
These
developments
allow
continual
monitoring
brain
function,
enhanced
comprehension
cerebral
activities,
increased
operational
efficacy
end-effectors.
implications
these
advancements
on
prospective
research
opportunities
are
evident
potential
more
accurate
diagnosis
neurological
disorders
progression
sophisticated
BCI
applications
designed
support
healthcare
monitor
evolution
technology
paving
way
novel
pathways
neuroscience
human-computer
interaction.
Language: Английский
Global synchronization of functional corticomuscular coupling under precise grip tasks using multichannel EEG and EMG signals
Xiaoling Chen,
No information about this author
Tingting Shen,
No information about this author
Yingying Hao
No information about this author
et al.
Cognitive Neurodynamics,
Journal Year:
2024,
Volume and Issue:
18(6), P. 3727 - 3740
Published: Aug. 6, 2024
Language: Английский
Brain Controlled Robotic Arm Using Motor Movements Using EEG Signals
S Thejaswini,
No information about this author
R. Banuprakash,
No information about this author
Siddiq Iqbal
No information about this author
et al.
International Journal of Electronics and Communication Engineering,
Journal Year:
2024,
Volume and Issue:
11(11), P. 54 - 61
Published: Nov. 30, 2024
Brain-computer
interface
systems
are
a
promising
technology
that
allows
individuals
with
physical
disabilities
to
control
various
devices
and
applications
through
their
brain
activity.
One
of
the
vital
challenges
in
developing
effective
BCI
is
accurate
classification
motor
actual/imagery
movements
from
electroencephalography
signals.
This
study
investigates
actual
imagery-based
tasks
identified
using
convolutional
neural
networks.
Temporal
features
were
extracted
spectrogram
analysis,
resulting
images
fed
CNN
model
classify
data
into
four
distinct
classes.
The
achieved
an
approximate
prediction
accuracy
62%
rate
100%
for
Class
1,
50%
Classes
2
3,
75%
4.
demonstrated
reasonably
ability
detect
intended
Electroencephalography
Additionally,
robotic
prototype
developed
capable
performing
specific
functions,
including
moving
backwards,
forward,
pinching
in,
out,
based
on
output
model.
Language: Английский
Exploring Novel Practical Approach to Post-Stroke Upper-Limb Neurorehabilitation Based on Complex Motor Imagery Tasks
Published: July 15, 2024
Motor
imagery
(MI)
is
one
of
the
main
strategies
for
upper-limb
movement
rehabilitation
in
post-stroke
individuals.
Promising
results
MI
applied
have
been
reported
literature.
However,
there
currently
a
need
related
to
recovery
movements
aimed
Activities
Daily
Living
(ADLs)
individuals
with
severe
motor
impairments.
Therefore,
this
study
presents
evaluation
novel
protocol
neurorehabilitation
using
complex
tasks
manipulation
drinking
cup.
The
based
on
Action
Observation
(AO),
which
was
used
under
first-person
2D
virtual
reality.
Subjects
had
simultaneously
imagine
presented
AO
cup
varying
four
positions.
EEG
signals
were
recorded
from
16
channels
located
mainly
cortex
brain.
Two
computational
Riemannian
Geometry
(RG)
and
without
Feature
Selection
(FS)
Pair-Wise
Proximity
(PWFP)
implemented
binary
identification
each
MI-Task
vs.
MI-Rest.
This
approach
evaluated
30
healthy
2
Using
Linear
Discriminant
Analysis
(LDA)
as
classifier,
report
maximum
accuracy
0.78
both
individuals,
minimum
FPR
0.21
0.13
respectively.
highlights
potential
use
type
paradigms
implementation
more
robust
BCI
systems
that
allow
close
ADLs.
may
be
suitable
variant
Language: Английский
ESI-GAL: EEG source imaging-based trajectory estimation for grasp and lift task
Computers in Biology and Medicine,
Journal Year:
2024,
Volume and Issue:
186, P. 109608 - 109608
Published: Dec. 29, 2024
Language: Английский
BiCurNet: Pre-Movement EEG based Neural Decoder for Biceps Curl Trajectory Estimation
Manali Saini,
No information about this author
Anant Jain,
No information about this author
Lalan Kumar
No information about this author
et al.
arXiv (Cornell University),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 1, 2023
Kinematic
parameter
(KP)
estimation
from
early
electroencephalogram
(EEG)
signals
is
essential
for
positive
augmentation
using
wearable
robot.
However,
work
related
to
of
KPs
surface
EEG
sparse.
In
this
work,
a
deep
learning-based
model,
BiCurNet,
presented
biceps
curl
collected
signal.
The
model
utilizes
light-weight
architecture
with
depth-wise
separable
convolution
layers
and
customized
attention
module.
feasibility
demonstrated
brain
source
imaging.
Computationally
efficient
features
in
spherical
head
harmonics
domain
utilized
the
first
time
KP
prediction.
best
Pearson
correlation
coefficient
(PCC)
between
estimated
actual
trajectory
$0.7$
achieved
when
combined
(spatial
domain)
delta
band
utilized.
Robustness
proposed
network
subject-dependent
subject-independent
training,
artifacts.
Language: Английский