bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 21, 2023
Summary
Neural
oscillations
reflect
fluctuations
in
the
relative
excitation/inhibition
of
neural
systems
1–5
and
are
theorised
to
play
a
critical
role
several
canonical
computations
6–9
cognitive
processes
10–14
.
These
theories
have
been
supported
by
findings
that
detection
visual
stimuli
fluctuates
with
phase
at
time
stimulus
onset
15–23
However,
null
results
emerged
studies
seeking
demonstrate
these
effects
discrimination
tasks
24–27
,
raising
questions
about
generalisability
phenomena
wider
processes.
Recently,
we
suggested
methodological
limitations
may
mask
oscillation
higher-level
sensory
processing
28
Thus,
test
generality
phasic
influences
requires
task
but
depends
on
early
processing.
Here,
examined
influence
tilt
illusion,
which
an
oriented
centre
grating
is
perceived
titled
away
from
orientation
surround
29
This
illusion
produced
lateral
inhibitory
interactions
30–32
We
presented
gratings
participants’
titrated
subjective
vertical
angle
had
participants
report
whether
appeared
tilted
leftward
or
rightward
each
trial
while
measuring
their
brain
activity
EEG.
observed
robust
fluctuation
perception
across
different
phases
posterior
alpha
theta
oscillations,
consistent
fluctuating
magnitude
oscillatory
cycle.
confirm
affects
complex
involved
discrimination,
purported
underpin
cognition.
In
multisensory
environments,
how
inputs
from
different
sensory
modalities
interact
to
shape
perception
are
not
fully
understood.
this
study,
we
investigated
auditory
stimuli
influence
the
temporal
dynamics
of
visual
processing
using
electroencephalography
(EEG).
Participants
were
presented
with
two
consecutive
flashes,
either
accompanied
by
an
beep
or
without,
and
asked
report
their
one
flashes.
Behaviorally,
found
that
introduction
input
induced
a
longer
window
for
integration.
Alpha
frequency
analysis
further
revealed
presence
led
poststimulus
alpha
degradation,
positively
correlating
prolonged
window,
supporting
idea
oscillations
represent
Further
exploration
prestimulus
diminished
predictive
role
while
enhancing
phase
in
shaping
perceptual
outcomes.
A
follow-up
transcranial
alternating
current
stimulation
(tACS)
experiment
confirmed
have
causal
modulating
absence
but
when
present.
To
probe
underlying
mechanisms,
developed
computational
model
based
on
phase-resetting
hypothesis
cycle
theory,
which
successfully
replicated
core
findings.
These
results
reveal
extends
integration
resetting
cortex,
leading
reduction
altered
events.
This
study
advances
understanding
cross-modal
interactions
highlights
dynamic,
adaptive
processes
In
multisensory
environments,
how
inputs
from
different
sensory
modalities
interact
to
shape
perception
are
not
fully
understood.
this
study,
we
investigated
auditory
stimuli
influence
the
temporal
dynamics
of
visual
processing
using
electroencephalography
(EEG).
Participants
were
presented
with
two
consecutive
flashes,
either
accompanied
by
an
beep
or
without,
and
asked
report
their
one
flashes.
Behaviorally,
found
that
introduction
input
induced
a
longer
window
for
integration.
Alpha
frequency
analysis
further
revealed
presence
led
poststimulus
alpha
degradation,
positively
correlating
prolonged
window,
supporting
idea
oscillations
represent
Further
exploration
prestimulus
diminished
predictive
role
while
enhancing
phase
in
shaping
perceptual
outcomes.
A
follow-up
transcranial
alternating
current
stimulation
(tACS)
experiment
confirmed
have
causal
modulating
absence
but
when
present.
To
probe
underlying
mechanisms,
developed
computational
model
based
on
phase-resetting
hypothesis
cycle
theory,
which
successfully
replicated
core
findings.
These
results
reveal
extends
integration
resetting
cortex,
leading
reduction
altered
events.
This
study
advances
understanding
cross-modal
interactions
highlights
dynamic,
adaptive
processes
A
core
challenge
of
cognitive
neuroscience
is
to
understand
how
cognition
changes
over
time
within
the
same
individual.
For
example,
tendency
for
behavioural
responses
in
a
range
domains
oscillate
has
been
studied
extensively.
Recently,
however,
phenomenon
oscillations
called
into
question
by
indications
that
past
findings
might
reflect
aperiodic
temporal
structure
rather
than
true
oscillations.
Brookshire
(2022)
proposed
methods
control
while
examining
time-courses
and
found
no
evidence
reanalyses
four
published
datasets.
However,
Brookshire’s
method
criticised
having
low
sensitivity
detect
effects
realistic
magnitude,
so
it
currently
unclear
whether
these
suggest
are
not
present
perhaps
many
other
datasets,
or
they
false
negatives.
Here,
we
modification
AR-surrogate
with
increased
adequate
positives,
desirable
properties
such
as
ability
increase
statistical
power
adding
more
participants.
Using
this
method,
reanalyse
publicly
available
datasets
show
significant
each
them,
suggesting
behaviour
robust
upon
which
draw
theoretical
inferences.
The
participant-level
most
sensitive
analysing
controlling
contribution
data
fluctuations.
A
core
challenge
of
cognitive
neuroscience
is
to
understand
how
cognition
changes
over
time
within
the
same
individual.
For
example,
tendency
for
behavioural
responses
in
a
range
domains
oscillate
has
been
studied
extensively.
Recently,
however,
phenomenon
oscillations
called
into
question
by
indications
that
past
findings
might
reflect
aperiodic
temporal
structure
rather
than
true
oscillations.
Brookshire
(2022)
proposed
methods
control
while
examining
time-courses
and
found
no
evidence
reanalyses
four
published
datasets.
However,
Brookshire’s
method
criticised
having
low
sensitivity
detect
effects
realistic
magnitude,
so
it
currently
unclear
whether
these
suggest
are
not
present
perhaps
many
other
datasets,
or
they
false
negatives.
Here,
we
modification
AR-surrogate
with
increased
adequate
positives,
desirable
properties
such
as
ability
increase
statistical
power
adding
more
participants.
Using
this
method,
reanalyse
publicly
available
datasets
show
significant
each
them,
suggesting
behaviour
robust
upon
which
draw
theoretical
inferences.
The
participant-level
most
sensitive
analysing
controlling
contribution
data
fluctuations.
Journal of Cognitive Neuroscience,
Год журнала:
2023,
Номер
36(4), С. 691 - 699
Опубликована: Май 31, 2023
Classical
and
recent
evidence
has
suggested
that
alpha
oscillations
play
a
critical
role
in
temporally
discriminating
or
binding
successively
presented
items.
Challenging
this
view,
Buergers
Noppeney
[Buergers,
S.,
&
Noppeney,
U.
The
of
temporal
within
across
the
senses.
Nature
Human
Behaviour,
6,
732-742,
2022]
found
by
combining
EEG,
psychophysics,
signal
detection
theory,
neither
prestimulus
nor
resting-state
frequency
influences
perceptual
sensitivity
bias
task.
We
propose
following
four
points
should
be
considered
when
interpreting
oscillations,
especially
their
frequency,
on
binding:
(1)
Multiple
components
can
contaminated
conventional
EEG
analysis;
(2)
effect
perception
will
interact
with
power;
(3)
different
from
poststimulus
which
is
during
more
directly
related
to
binding;
(4)
applying
theory
under
assumption
equal
variance,
often
incomplete
problematic
(e.g.,
magnitude
relationships
between
individuals
parametric
may
change
converted
into
nonparametric
sensitivity).
Future
directions,
including
solutions
each
issues,
are
discussed.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 29, 2024
Abstract
When
presented
shortly
after
another,
discrete
pictures
are
naturally
perceived
as
continuous.
The
neuronal
mechanism
underlying
such
continuous
or
perception
not
well
understood.
While
alpha
oscillations
a
candidate
for
orchestrating
mechanisms,
recent
evidence
is
mixed.
In
this
study,
we
investigated
the
influence
of
prestimulus
oscillation
on
visual
temporal
perception.
Specifically,
were
interested
whether
phase
modulates
and
perceptual
processes
Participant
had
to
report
location
missing
object
in
integration
task,
while
simultaneously
MEG
data
was
recorded.
Using
source
reconstruction,
evaluated
local
effects
by
contrasting
angle
values
between
correctly
incorrectly
integrated
trials.
Our
results
show
opposition
cluster
-
0.8
0.5
s
(relative
stimulus
presentation)
6
20
Hz.
These
momentary
correlated
with
behavioural
performance
event
related
potential
amplitude.
There
no
that
frequency
defined
window
integration.
Significance
Statement
light
current
debate
if
our
rhythmic
process,
give
new
insight
debate.
We
underling
defining
highlight
complexity
process.
This
will
help
us
further
understand
how
brain
operates
incoming
unimodal
stimuli.
able
information
processed
fashion.
supports
idea
poststimulus
processing
good
less
phases
early
processes.
defines
windows
two
stimuli
into
one
single
event.
eNeuro,
Год журнала:
2024,
Номер
11(9), С. ENEURO.0471 - 23.2024
Опубликована: Авг. 12, 2024
When
presented
shortly
after
another,
discrete
pictures
are
naturally
perceived
as
continuous.
The
neuronal
mechanism
underlying
such
continuous
or
perception
is
not
well
understood.
While
alpha
oscillations
a
candidate
for
orchestrating
mechanisms,
recent
evidence
mixed.
In
this
study,
we
investigated
the
influence
of
prestimulus
oscillation
on
visual
temporal
perception.
Specifically,
were
interested
in
whether
phase
modulates
and
perceptual
processes
Participants
had
to
report
location
missing
object
integration
task,
while
simultaneously
MEG
data
recorded.
Using
source
reconstruction,
evaluated
local
effects
by
contrasting
angle
values
between
correctly
incorrectly
integrated
trials.
Our
results
show
opposition
cluster
−0.8
−0.5
s
(relative
stimulus
presentation)
6
20
Hz.
These
momentary
correlated
with
behavioral
performance
event-related
potential
amplitude.
There
was
no
that
frequency
defined
window
integration.
European Journal of Neuroscience,
Год журнала:
2024,
Номер
60(7), С. 5591 - 5604
Опубликована: Авг. 23, 2024
The
study
of
alpha
band
oscillations
in
the
brain
is
a
popular
topic
cognitive
neuroscience.
A
fair
amount
research
recent
years
has
focused
on
potential
role
these
may
play
discrete
sampling
continuous
sensory
information.
In
particular,
question
whether
or
not
peak
frequency
linked
with
temporal
resolution
visual
perception
ongoing
debate.
Some
studies
have
reported
correlation
between
two,
whereas
others
were
unable
to
observe
link.
It
unclear
conflicting
findings
are
due
differing
methodologies
and/or
low
statistical
power,
absence
true
relationship.
Replication
needed
gain
better
insight
into
this
matter.
current
study,
we
replicated
an
experiment
published
2015
paper
by
Samaha
and
Postle.
Additionally,
expanded
adding
extra
behavioural
task,
critical
flicker
fusion
investigate
if
any
links
generalizable
across
multiple
measures
for
resolution.
We
succeeded
replicating
some,
but
all
Postle's
findings.
Our
partial
replication
suggests
that
there
be
link
frequency.
However,
relationship
very
small
only
apparent
specific
stimulus
parameters.
correlations
found
our
did
generalize
other