NeuroImage Clinical,
Journal Year:
2024,
Volume and Issue:
45, P. 103720 - 103720
Published: Dec. 1, 2024
Temporal
processing
deficits
in
Developmental
Dyslexia
(DD)
have
been
documented
extensively
at
the
behavioral
level,
leading
to
formulation
of
neural
theories
positing
that
such
anomalies
parsing
multisensory
input
rely
on
aberrant
synchronization
oscillations
or
an
excessive
level
noise.
Despite
reading
being
primarily
supported
by
visual
functions,
experimental
evidence
supporting
these
remains
scarce.
Here,
we
tested
26
adults
with
DD
(9
females)
and
31
neurotypical
controls
(16
a
temporal
segregation/integration
task
required
participants
either
integrate
segregate
two
rapidly
presented
displays
while
their
EEG
activity
was
recorded.
We
confirmed
sampling
deficit
DD,
which
specifically
affected
rapid
segregation
input.
While
ongoing
alpha
frequency
excitation/inhibition
(E/I)
ratio
(i.e.,
index
noise
quantified
aperiodic
exponent)
were
differently
modulated
based
demands
typical
readers,
exhibited
impairment
speed
modulation
altered
E/I
sampling.
Nonetheless,
association
between
accuracy
both
measured
rest
evident
group,
further
confirming
anomalous
interplay
synchronization,
active
These
results
provide
trait-
state-like
differences
alpha-band
levels
coexist
dyslexic
brain
are
synergistically
responsible
for
cascade
effects
reading.
NeuroImage,
Journal Year:
2024,
Volume and Issue:
289, P. 120550 - 120550
Published: Feb. 20, 2024
Visual
crowding
is
the
difficulty
in
identifying
an
object
when
surrounded
by
neighbouring
flankers,
representing
a
bottleneck
for
perception.
Crowding
arises
not
only
from
activity
of
visual
areas
but
also
parietal
and
fronto-parietal
network
activity.
Parietal
would
provide
dorsal-to-ventral
guidance
identification
modulate
attentional
resolution.
Several
studies
highlighted
relevance
beta
oscillations
(15-25
Hz)
these
other
connatural
phenomena.
In
present
study,
we
investigated
differential
contribution
cortex
resolution
crowding.
During
task
with
letter
stimuli,
high-definition
transcranial
Alternating
Current
Stimulation
(tACS)
band
(18
was
delivered
bilaterally
on
sites,
right
network,
sham
regime.
Resting-state
EEG
recorded
before
after
stimulation
to
measure
tACS-induced
aftereffects.
The
influence
reduced
tACS
sites.
this
condition,
power
stimulation.
Furthermore,
magnitude
aftereffects
varied
as
function
individual
differences
oscillations.
Results
corroborate
link
between
crowding,
providing
fundamental
insights
brain
rhythms
underlying
perception
suggesting
that
can
induce
plastic
changes
areas.
Remarkably,
findings
open
new
possibilities
neuromodulatory
interventions
disorders
characterised
abnormal
such
dyslexia.
Visual Cognition,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 23
Published: Jan. 6, 2025
Visual
crowding
in
peripheral
vision
is
influenced
by
surrounding
objects,
contrasting
with
foveal
vision.
Traditional
models
emphasized
feed-forward
object
recognition,
but
recent
research
suggests
top-down
processes
are
crucial.
Studies
show
feedback
to
cortex
key
for
perception.
Our
used
a
novel
paradigm
varying
ISIs
of
noise
disrupt
feedback,
and
high-resolution
psychophysical
EEG
methods
analyze
effects.
Findings
indicated
that
100
ms
500
delayed
significantly
impairs
target
recognition
during
crowding,
beta-band
oscillations
facilitating
cortical
communication.
We
conclude
uniquely
impacts
visual
potentially
aiding
perceptual
grouping
recognition.
Frontiers in Virtual Reality,
Journal Year:
2025,
Volume and Issue:
6
Published: Jan. 30, 2025
Virtual
Reality
(VR)
has
expanded
beyond
the
entertainment
field
and
become
a
valuable
tool
across
different
verticals,
including
healthcare,
education,
professional
training,
just
to
name
few.
Despite
these
advancements,
widespread
usage
of
VR
systems
is
still
limited,
mostly
due
motion
sickness
symptoms,
such
as
dizziness,
nausea,
headaches,
which
are
collectively
termed
“cybersickness”.
In
this
paper,
we
explore
use
electroencephalography
(EEG)
for
real-time
characterization
cybersickness.
particular,
aim
answer
three
research
questions:
(1)
what
neural
patterns
indicative
cybersickness
levels,
(2)
do
EEG
amplitude
modulation
features
convey
more
important
explainable
patterns,
(3)
role
does
pre-processing
play
in
overall
characterization.
Experimental
results
show
that
minimal
retains
artifacts
may
be
useful
detection
(e.g.,
head
eye
movements),
while
advanced
methods
enable
extraction
interpretable
help
community
gain
additional
insights
on
underpinnings
Our
experiments
proposed
comprise
roughly
60%
top-selected
EEG-based
detection.
Abstract
Rhythmic
brain
activity
has
been
proposed
to
structure
visual
processing.
Here
we
investigated
the
causal
contributions
of
parietal
beta
oscillations
context-dependent
size
perception,
which
is
indicated
by
classic
Ebbinghaus
and
Ponzo
illusions.
On
each
trial,
rhythmic
transcranial
magnetic
stimulation
(TMS)
was
applied
over
left
or
right
superior
lobule
in
a
train
five
pulses
at
frequency
(20
Hz).
Immediately
after
last
pulse
train,
participants
were
presented
with
illusory
configuration,
performed
size-matching
task.
The
results
revealed
that
significantly
increased
magnitudes
both
illusions
relative
control
vertex
stimulation,
whereas
illusion
effects
unaffected
stimulation.
Moreover,
effect
not
observed
TMS
theta
(5
findings
clearly
demonstrate
functional
relevance
for
implementation
cognitive
performance,
supporting
contribution
cortex
processing
Annals of Neurosciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 2, 2025
Background
Breath-awareness
practices
contribute
to
stress
management
and
psychological
well-being
among
adolescents.
However,
their
neurobehavioural
effects
remain
underexplored,
specifically
in
the
Indian
developmental
context.
Purpose
This
study
examined
how
breath-based
Ānāpānasati
meditation
affects
brain
electrical
activity
subjective
self-reported
experiences
adolescent
novice
meditators
posteriori
a
cognitive
workload-inducing
task.
Methods
Anapanasati
was
adapted
into
three-stage
breath-awareness
intervention
framework
administered
45
meditators.
Brain
investigated
through
electroencephalography
(EEG),
neural
oscillations
were
measured
over
three
stages,
namely
resting
state
(RS),
breath
counting
(BC)
focus
(BF).
Further,
adolescents’
awareness
self-reports
evaluated
employing
Amsterdam
Resting-State
Questionnaire
(ARSQ)
following
BF
stage
count
feedback
(BCF)
after
BC
stage.
Both
inventories
displayed
satisfactory
psychometric
properties,
thus
facilitating
analysis
cross-sectional
within-subjects
setting.
Results
Alpha
oscillation
significantly
increased
throughout
intervention,
indicating
relaxation.
Beta
power
both
occipital
midline
default
mode
network
(DMN)
regions
during
stages
exhibited
significant
positive
associations
with
count,
suggesting
enhanced
visual
processing.
Blissfulness
felt
breaths
also
associated
mindfulness,
sharing
notable
negative
association
theory
of
mind
(TOM).
State
mindfulness
further
correlated
frontal
alpha
activity,
while
negatively
predicted
power.
Lastly,
exploratory
revealed
gender
differences,
females
demonstrating
greater
beta
mindfulness.
Conclusion
can
be
effective
for
promoting
relaxation
blissfulness
adolescents,
possible
gender-based
variations
influencing
its
impact.
Moreover,
prefrontal
TOM
underscored
an
inverse
interplay
between
inward-focused
outward-directed
social
states
Cerebral Cortex,
Journal Year:
2024,
Volume and Issue:
34(9)
Published: Sept. 1, 2024
Abstract
The
phase
synchronization
of
brain
oscillations
plays
an
important
role
in
visual
processing,
perceptual
awareness,
and
performance.
Yet,
the
cortical
mechanisms
underlying
modulatory
effects
post-stimulus
coherence
frequency-specific
associated
with
different
aspects
vision
are
still
subject
to
debate.
In
this
study,
we
aimed
identify
perceived
visibility
contour
discrimination.
We
analyzed
electroencephalogram
data
from
two
masking
experiments
where
target
was
manipulated
by
contrast
ratio
or
polarity
mask
under
various
onset
timing
conditions
(stimulus
asynchronies,
SOAs).
behavioral
results
indicated
SOA-dependent
suppression
due
masking.
time-frequency
analyses
revealed
significant
modulations
over
occipital
parieto-occipital
regions.
particularly
identified
(i)
2–5
Hz
frequency
range,
which
may
reflect
feedforward-mediated
detection
sustained
visibility;
(ii)
10–25
be
suppressed
through
inhibitory
interactions
between
within
synchronized
neural
pathways.
Taken
together,
our
findings
provide
evidence
that
oscillatory
alignments,
not
only
pre-stimulus
but
also
window,
play
a
crucial
shaping
dynamic
vision.
Computers,
Journal Year:
2024,
Volume and Issue:
13(10), P. 246 - 246
Published: Sept. 26, 2024
Mental
workload,
visuospatial
processes
and
autonomic
nervous
system
(ANS)
activity
are
highly
intertwined
phenomena
crucial
for
achieving
optimal
performance
improved
mental
health.
Virtual
reality
(VR)
serves
as
an
effective
tool
creating
variety
of
controlled
environments
to
better
probe
these
features.
This
study
investigates
the
relationship
between
physiological
arousal,
during
a
high-demand
task
in
VR
environment.
We
utilized
modified
version
popular
computer
game
TETRIS
task,
involving
25
participants,
employed
computing
headset
that
simultaneously
records
multimodal
data.
Our
findings
indicate
broadband
increase
EEG
power
just
prior
helper
event,
followed
by
spike
engagement
(parietal
alpha
beta
0-1-3
s)
occurring
concurrently
with
decrease
workload
(frontal
theta
2–4
s),
subsequent
decreases
at
14
arousal
(HRV
20
s).
Regression
analysis
indicated
subjective
relief
helpfulness
intervention
was
primarily
driven
engagement.
These
highlight
importance
recording
rich
environments,
such
real
world
scenarios
VR,
understand
interplay
various
responses
involved
workload.
Advanced technology in neuroscience .,
Journal Year:
2024,
Volume and Issue:
1(1), P. 86 - 104
Published: Sept. 1, 2024
The
diagnosis
and
prognosis
of
disorders
consciousness
pose
challenges
for
clinics
because
human
is
still
a
mysterious
unknown
phenomenon.
Scientists
clinicians
are
seeking
evidence
from
neuroimaging
electrophysiology
to
explore
the
biological
pathological
mechanisms
consciousness.
They
attempt
provide
new
insights
into
neuronal
foundations
injury
recovery.
These
findings
have
improved
accuracy
clinical
some
extent.
However,
they
not
clearly
sorted
out.
Herein,
we
structure
available
knowledge
on
basis
(including
positron
emission
tomography,
functional
magnetic
resonance
imaging,
near-infrared
spectroscopy)
(spontaneous
electroencephalography,
event-related
potentials,
brain–computer
interfaces,
transcranial
stimulation-evoked
electroencephalography)
studies
their
associations
with
consciousness-relevant
practice.
Our
aim
promote
translation
management
patients
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 14, 2024
Abstract
A
better
understanding
of
the
neural
and
muscular
mechanisms
underlying
motor
responses
is
essential
for
advancing
neurorehabilitation
protocols,
brain-computer
interfaces
(BCI),
feature
engineering
biosignal
classification
algorithms,
identifying
biomarkers
disease
performance
enhancement
strategies.
In
this
study,
we
examined
neuromuscular
dynamics
healthy
individuals
during
a
sequential
finger-pinching
task,
focusing
on
relationships
between
cortical
oscillations
muscle
activity
in
simultaneous
electroencephalography
(EEG)
electromyography
(EMG)
recordings.
We
contrasted
two
pairs
subsets
dataset
based
latency
EMG
onset:
an
across-subjects
trait-based
comparison
within-subjects
state-based
comparison.
Trait-based
analyses
showed
that
fast
responders
had
higher
baseline
beta
power,
indicating
stronger
inhibition
efficient
resetting
networks,
greater
mu
desynchronization
movement,
reflecting
enhanced
cortex
activation.
Visual
association
areas
also
displayed
more
pronounced
changes
different
phases
task
subjects
with
lower
latency.
Fast
exhibited
power
movement
initiation,
showing
effective
rapid
State-based
revealed
no
significant
EEG
differences
slow
trials,
while
were
only
detected
after
onset.
These
results
highlight
response
trait
related
to
electro-physiological
at
specific
frequency
bands
phases,
offering
insights
enhancing
function
rehabilitation,
biomarker
identification
BCI
applications.
Highlights
analyzed
recordings
finger
identified
correlates
trait,
but
not
state
show
Lower
was
linked
sharper
postcue
sensorimotor
decrease
have
pre-movement
onset
