Studies
investigating
language
commonly
isolate
one
modality
or
process,
focusing
on
comprehension
production.
Here,
we
present
a
framework
for
paradigm
that
combines
both:
the
Concise
Language
Paradigm
(CLaP),
tapping
into
and
production
within
trial.
The
trial
structure
is
identical
across
conditions,
presenting
sentence
followed
by
picture
to
be
named.
We
tested
21
healthy
speakers
with
EEG
examine
three
time
periods
during
(sentence,
pre-picture
interval,
onset),
yielding
contrasts
of
comprehension,
contextually
visually
guided
word
retrieval,
object
recognition,
naming.
In
CLaP,
sentences
are
presented
auditorily
(constrained,
unconstrained,
reversed),
pictures
appear
as
normal
bare)
scrambled
objects.
Imaging
results
revealed
different
evoked
responses
after
onset
time-reversed
speech.
Further,
replicated
context
effect
alpha-beta
power
decreases
before
constrained
relative
unconstrained
sentences,
could
clarify
this
arises
from
following
sentences.
Brain
locked
picture-onset
differed
function
type
(normal
vs.
scrambled),
naming
times
were
fastest
in
naming,
equally
fast
bare
Finally,
also
discuss
potential
CLaP
adapted
focuses,
using
versions
linguistic
content
tasks,
combination
electrophysiology
other
imaging
methods.
These
first
indicate
offers
promising
investigate
system.
When
we
comprehend
language
from
speech,
the
phase
of
neural
response
aligns
with
particular
features
speech
input,
resulting
in
a
phenomenon
referred
to
as
Nature Communications,
Год журнала:
2024,
Номер
15(1)
Опубликована: Окт. 14, 2024
Humans
excel
at
extracting
structurally-determined
meaning
from
speech
despite
inherent
physical
variability.
This
study
explores
the
brain's
ability
to
predict
and
understand
spoken
language
robustly.
It
investigates
relationship
between
structural
statistical
knowledge
in
brain
dynamics,
focusing
on
phase
amplitude
modulation.
Using
syntactic
features
constituent
hierarchies
surface
statistics
a
transformer
model
as
predictors
of
forward
encoding
models,
we
reconstructed
cross-frequency
neural
dynamics
MEG
data
during
audiobook
listening.
Our
findings
challenge
strict
separation
linguistic
structure
brain,
with
both
aiding
signal
reconstruction.
Syntactic
have
more
temporally
spread
impact,
word
entropy
number
closing
constituents
are
linked
phase-amplitude
coupling
implying
role
temporal
prediction
cortical
oscillation
alignment
processing.
results
indicate
that
structured
information
jointly
shape
comprehension
suggest
an
integration
process
via
mechanism.
When
we
understand
language,
recognize
words
and
combine
them
into
sentences.
In
this
paper,
explore
the
hypothesis
that
listeners
use
probabilistic
information
about
to
build
syntactic
structure.
Recent
work
has
shown
lexical
probability
structure
both
modulate
delta-band
(0-4
Hz)
neural
signal.
Here,
investigated
whether
encoding
of
changes
as
a
function
distributional
properties
word.
To
end,
analyzed
MEG
data
24
native
speakers
Dutch
who
listened
three
fairytales
with
total
duration
49
minutes.
Using
temporal
response
functions
cumulative
model-comparison
approach,
evaluated
contributions
features
variance
in
This
revealed
surprisal
values
(a
feature),
well
bottom-up
node
counts
feature)
positively
contributed
model
Subsequently,
compared
responses
feature
between
high-
low
values.
delay
consequence
value
word:
high
were
associated
delayed
by
150
190
milliseconds.
The
was
not
affected
word
duration,
did
have
origin.
These
findings
suggest
brain
uses
infer
structure,
highlight
an
importance
for
role
time
process.
eNeuro,
Год журнала:
2024,
Номер
11(4), С. ENEURO.0312 - 23.2024
Опубликована: Март 15, 2024
Research
into
the
role
of
brain
oscillations
in
basic
perceptual
and
cognitive
functions
has
suggested
that
alpha
rhythm
reflects
functional
inhibition
while
beta
neural
ensemble
(re)activation.
However,
little
is
known
regarding
generalization
these
proposed
fundamental
operations
to
linguistic
processes,
such
as
speech
comprehension
production.
Here,
we
recorded
magnetoencephalography
participants
performing
a
novel
rule-switching
paradigm.
Specifically,
Dutch
native
speakers
had
produce
an
alternative
exemplar
from
same
category
or
feature
given
target
word
embedded
spoken
sentences
(e.g.,
for
“tuna”,
category—“seafood”—would
be
“shrimp”,
would
“pink”).
A
cue
indicated
task
rule—exemplar
feature—either
before
(pre-cue)
after
(retro-cue)
listening
sentence.
Alpha
power
during
working
memory
delay
was
lower
retro-cue
compared
with
pre-cue
left
hemispheric
language-related
regions.
Critically,
negatively
correlated
reaction
times,
suggestive
facilitating
performance
by
regulating
regions
linked
lexical
retrieval.
Furthermore,
observed
different
spatiotemporal
pattern
activity
exemplars
versus
features
right
temporoparietal
regions,
line
recruiting
networks
encoding
distinct
categories.
Overall,
our
study
provides
evidence
generalizability
more
“complex,
processes”
offers
investigate
links
between
rule-switching,
memory,
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 19, 2024
Speech
comprehension
requires
the
human
brain
to
transform
an
acoustic
waveform
into
meaning.
To
do
so,
generates
a
hierarchy
of
features
that
converts
sensory
input
increasingly
abstract
language
properties.
However,
little
is
known
about
how
these
hierarchical
are
generated
and
continuously
coordinated.
Here,
we
propose
each
linguistic
feature
dynamically
represented
in
simultaneously
represent
successive
events.
test
this
'Hierarchical
Dynamic
Coding'
(HDC)
hypothesis,
use
time-resolved
decoding
activity
track
construction,
maintenance,
integration
comprehensive
spanning
acoustic,
phonetic,
sub-lexical,
lexical,
syntactic
semantic
representations.
For
this,
recorded
21
participants
with
magnetoencephalography
(MEG),
while
they
listened
two
hours
short
stories.
Our
analyses
reveal
three
main
findings.
First,
incrementally
represents
maintains
features.
Second,
duration
representations
depend
on
their
level
hierarchy.
Third,
representation
maintained
by
dynamic
neural
code,
which
evolves
at
speed
commensurate
its
corresponding
level.
This
HDC
preserves
maintenance
information
over
time
limiting
interference
between
Overall,
reveals
builds
during
natural
speech
comprehension,
thereby
anchoring
theories
biological
implementations.
Human Brain Mapping,
Год журнала:
2024,
Номер
45(10)
Опубликована: Июль 5, 2024
Abstract
Alpha
oscillations
are
known
to
play
a
central
role
in
several
higher‐order
cognitive
functions,
especially
selective
attention,
working
memory,
semantic
and
creative
thinking.
Nonetheless,
we
still
know
very
little
about
the
of
alpha
generation
more
remote
associations,
which
is
key
cognition.
Furthermore,
it
remains
unclear
how
these
shaped
by
intention
“be
creative,”
case
most
creativity
tasks.
We
aimed
address
gaps
two
experiments.
In
Experiment
1,
compared
oscillatory
activity
(using
method
distinguishes
genuine
from
transient
events)
during
free
associations
were
vs.
less
distant
given
concept.
2,
replicated
findings
also
when
people
generating
versus
with
instruction
be
(i.e.
goal‐directed).
found
that
was
consistently
higher
both
This
effect
widespread,
involving
areas
left
right
hemispheres.
Importantly,
seems
increase
phase
synchronisation
temporal
brain
areas,
suggesting
changed
flux
information
brain,
likely
reflecting
an
top‐down
control
search
processes.
conclude
goal‐directed
relies
on
mechanisms
freely
generated.
Frontiers in Neuroscience,
Год журнала:
2025,
Номер
19
Опубликована: Апрель 14, 2025
Hearing
spoken
words
can
enhance
the
recognition
of
visual
object
categories.
Yet,
mechanisms
that
underpin
this
facilitation
are
incompletely
understood.
Recent
proposals
suggest
alter
processes
by
activating
category-specific
representations
in
sensory
regions.
Here,
we
tested
hypothesis
neural
oscillations
serve
as
a
mechanism
to
activate
language-generated
representations.
Participants
performed
cue-picture
matching
task
where
cues
were
either
words,
their
native
or
second
language,
natural
sounds,
while
EEG
and
reaction
times
recorded.
Behaviorally,
found
images
cued
recognized
faster
than
those
sounds.
This
indicates
language
activates
more
accurate
semantic
compared
A
time-frequency
analysis
cue-target
intervals
revealed
label-advantage
effect
was
associated
with
enhanced
power
posterior
alpha
(9–11
Hz)
beta
(17–19
Hz),
both
which
larger
when
image
preceded
word
sound.
These
results
rhythms
may
play
distinct
functional
roles
support
language-mediated
recognition:
might
function
amplify
regions,
(re)activate
network
states
elicited
auditory
cue.
