IEEE Access,
Год журнала:
2024,
Номер
12, С. 74930 - 74943
Опубликована: Янв. 1, 2024
Brain-Computer
Interface
(BCI)
is
a
revolutionary
technique
that
employs
wearable
electroencephalography
(EEG)
sensors
and
artificial
intelligence
(AI)
to
monitor
decode
brain
activity.
EEG-based
motor
imagery
(MI)
signal
widely
utilized
in
various
BCI
fields
including
intelligent
healthcare,
robot
control,
smart
homes.
Yet,
the
limited
capability
of
decoding
signals
remains
significant
obstacle
techniques
expansion.
In
this
study,
we
describe
an
architecture
known
as
dual-branch
attention
temporal
convolutional
network
(DB-ATCNet)
for
MI
classification.
DB-ATCNet
improves
classification
performance
with
relatively
fewer
parameters
by
utilizing
channel
attention.
The
model
consists
two
primary
modules:
convolution
(ADBC)
fusion
(ATFC).
ADBC
module
utilizes
extract
low-level
MI-EEG
features
incorporates
improve
spatial
feature
extraction.
ATFC
sliding
windows
self-attention
obtain
high-level
features,
strategies
minimize
information
loss.
achieved
subject-independent
accuracies
87.33%
69.58%
two-class
four-class
tasks,
respectively,
on
PhysioNet
dataset.
On
Competition
IV-2a
dataset,
it
accuracy
71.34%
87.54%
subject-dependent
evaluations,
surpassing
existing
methods.
code
available
at
https://github.com/zk-xju/DB-ATCNet.
Sensors,
Год журнала:
2023,
Номер
23(14), С. 6434 - 6434
Опубликована: Июль 16, 2023
The
electroencephalography
(EEG)
signal
is
a
noninvasive
and
complex
that
has
numerous
applications
in
biomedical
fields,
including
sleep
the
brain–computer
interface.
Given
its
complexity,
researchers
have
proposed
several
advanced
preprocessing
feature
extraction
methods
to
analyze
EEG
signals.
In
this
study,
we
comprehensive
review
of
articles
related
processing.
We
searched
major
scientific
engineering
databases
summarized
results
our
findings.
Our
survey
encompassed
entire
process
processing,
from
acquisition
pretreatment
(denoising)
extraction,
classification,
application.
present
detailed
discussion
comparison
various
techniques
used
for
Additionally,
identify
current
limitations
these
their
future
development
trends.
conclude
by
offering
some
suggestions
research
field
IEEE Access,
Год журнала:
2023,
Номер
11, С. 127271 - 127301
Опубликована: Янв. 1, 2023
Brain-computer
interfaces
(BCIs)
have
undergone
significant
advancements
in
recent
years.
The
integration
of
deep
learning
techniques,
specifically
transformers,
has
shown
promising
development
research
and
application
domains.
Transformers,
which
were
originally
designed
for
natural
language
processing,
now
made
notable
inroads
into
BCIs,
offering
a
unique
self-attention
mechanism
that
adeptly
handles
the
temporal
dynamics
brain
signals.
This
comprehensive
survey
delves
transformers
providing
readers
with
lucid
understanding
their
foundational
principles,
inherent
advantages,
potential
challenges,
diverse
applications.
In
addition
to
discussing
benefits
we
also
address
limitations,
such
as
computational
overhead,
interpretability
concerns,
data-intensive
nature
these
models,
well-rounded
analysis.
Furthermore,
paper
sheds
light
on
myriad
BCI
applications
benefited
from
incorporation
transformers.
These
span
motor
imagery
decoding,
emotion
recognition,
sleep
stage
analysis
novel
ventures
speech
reconstruction.
review
serves
holistic
guide
researchers
practitioners,
panoramic
view
transformative
landscape.
With
inclusion
examples
references,
will
gain
deeper
topic
its
significance
field.
Abstract
Motor
imagery
(MI)
is
a
cognitive
process
wherein
an
individual
mentally
rehearses
specific
movement
without
physically
executing
it.
Recently,
MI-based
brain–computer
interface
(BCI)
has
attracted
widespread
attention.
However,
accurate
decoding
of
MI
and
understanding
neural
mechanisms
still
face
huge
challenges.
These
seriously
hinder
the
clinical
application
development
BCI
systems
based
on
MI.
Thus,
it
very
necessary
to
develop
new
methods
decode
tasks.
In
this
work,
we
propose
multi-branch
convolutional
network
(MBCNN)
with
temporal
(TCN),
end-to-end
deep
learning
framework
multi-class
We
first
used
MBCNN
capture
electroencephalography
signals
information
spectral
domains
through
different
kernels.
Then,
introduce
TCN
extract
more
discriminative
features.
The
within-subject
cross-session
strategy
validate
classification
performance
dataset
Competition
IV-2a.
results
showed
that
achieved
75.08%
average
accuracy
for
4-class
task
classification,
outperforming
several
state-of-the-art
approaches.
proposed
MBCNN-TCN-Net
successfully
captures
features
decodes
tasks
effectively,
improving
MI-BCIs.
Our
findings
could
provide
significant
potential
systems.
Journal of Neural Engineering,
Год журнала:
2024,
Номер
21(3), С. 036020 - 036020
Опубликована: Май 8, 2024
The
objective
of
this
study
is
to
investigate
the
application
various
channel
attention
mechanisms
within
domain
brain-computer
interface
(BCI)
for
motor
imagery
decoding.
Channel
can
be
seen
as
a
powerful
evolution
spatial
filters
traditionally
used
This
systematically
compares
such
by
integrating
them
into
lightweight
architecture
framework
evaluate
their
impact.
Frontiers in Human Neuroscience,
Год журнала:
2024,
Номер
18
Опубликована: Июнь 21, 2024
Emerging
brain-computer
interface
(BCI)
technology
holds
promising
potential
to
enhance
the
quality
of
life
for
individuals
with
disabilities.
Nevertheless,
constrained
accuracy
electroencephalography
(EEG)
signal
classification
poses
numerous
hurdles
in
real-world
applications.
Journal of Integrative Neuroscience,
Год журнала:
2024,
Номер
23(8)
Опубликована: Авг. 20, 2024
Background:
The
adoption
of
convolutional
neural
networks
(CNNs)
for
decoding
electroencephalogram
(EEG)-based
motor
imagery
(MI)
in
brain-computer
interfaces
has
significantly
increased
recently.
effective
extraction
features
is
vital
due
to
the
variability
among
individuals
and
temporal
states.
Methods:
This
study
introduces
a
novel
network
architecture,
3D-convolutional
network-generative
adversarial
(3D-CNN-GAN),
both
within-session
cross-session
imagery.
Initially,
EEG
signals
were
extracted
over
various
time
intervals
using
sliding
window
technique,
capturing
temporal,
frequency,
phase
construct
temporal-frequency-phase
feature
(TFPF)
three-dimensional
map.
Generative
(GANs)
then
employed
synthesize
artificial
data,
which,
when
combined
with
original
datasets,
expanded
data
capacity
enhanced
functional
connectivity.
Moreover,
GANs
proved
capable
learning
amplifying
brain
connectivity
patterns
present
existing
generating
more
distinctive
features.
A
compact,
two-layer
3D-CNN
model
was
subsequently
developed
efficiently
decode
these
TFPF
Results:
Taking
into
account
session
individual
differences
tests
conducted
on
public
GigaDB
dataset
SHU
laboratory
dataset.
On
dataset,
our
3D-CNN-GAN
models
achieved
two-class
accuracies
76.49%
77.03%,
respectively,
demonstrating
algorithm’s
effectiveness
improvement
provided
by
augmentation.
Furthermore,
yielded
67.64%
71.63%,
58.06%
63.04%,
respectively.
Conclusions:
algorithm
enhances
generalizability
EEG-based
(BCIs).
Additionally,
this
research
offers
valuable
insights
potential
applications
BCIs.