While
infants’
sensitivity
to
visual
speech
cues
and
the
benefit
of
these
have
been
well-established
by
behavioural
studies,
there
is
little
evidence
on
effect
neural
processing
continuous
auditory
speech.
In
this
study,
we
investigated
whether
cues,
such
as
movements
lips,
jaw,
larynx,
facilitate
tracking.
Ten-month-old
Dutch-learning
infants
watched
videos
a
speaker
reciting
passages
in
infant-directed
while
EEG
was
recorded.
videos,
either
full
face
displayed,
or
speaker’s
mouth
jaw
were
masked
with
block,
obstructing
cues.
To
assess
tracking,
speech-brain
coherence
(SBC)
calculated,
focusing
particularly
at
stress
syllabic
rates
(1-1.75
2.5-3.5
Hz
respectively
our
stimuli).
First,
overall
SBC
compared
surrogate
data,
then
differences
two
conditions
tested
frequencies
interest.
Our
results
indicated
that
show
significant
tracking
both
rates.
However,
no
identified
between
conditions,
meaning
not
modulated
further
presence
Furthermore,
demonstrated
low-frequency
information
related
their
subsequent
vocabulary
development
18
months.
Overall,
study
provides
necessarily
impaired
when
are
fully
visible,
may
be
potential
mechanism
successful
language
acquisition.
Developmental Cognitive Neuroscience,
Год журнала:
2023,
Номер
64, С. 101313 - 101313
Опубликована: Окт. 24, 2023
Infant-directed
singing
has
unique
acoustic
characteristics
that
may
allow
even
very
young
infants
to
respond
the
rhythms
carried
through
caregiver's
voice.
The
goal
of
this
study
was
examine
neural
and
movement
responses
live
dynamic
maternal
in
7-month-old
their
relation
linguistic
development.
In
total,
60
mother-infant
dyads
were
observed
during
two
conditions
(playsong
lullaby).
Study
1
(n
=
30),
we
measured
infant
EEG
used
an
encoding
approach
utilizing
ridge
regressions
measure
tracking.
2
=40),
coded
rhythmic
movements.
both
studies,
assessed
children's
vocabulary
when
they
20
months
old.
1,
found
above-threshold
tracking
singing,
with
superior
lullabies
than
playsongs.
We
also
features
infant-directed
modulated
2,
showed
more
playsongs
lullabies.
Importantly,
coordination
(Study
1)
2)
positively
related
infants'
expressive
at
months.
These
results
highlight
importance
brain
musical
presentations,
potentially
as
a
function
variability.
Clinical Neurophysiology,
Год журнала:
2024,
Номер
160, С. 47 - 55
Опубликована: Фев. 9, 2024
Previous
studies
have
reported
atypical
delta
phase
in
children
with
dyslexia,
and
that
modulates
the
amplitude
of
beta-band
response
via
delta-beta
phase-amplitude
coupling
(PAC).
Accordingly,
delta-band
effects
dyslexia
may
imply
related
effects,
particularly
regarding
PAC.
Our
primary
objective
was
to
explore
oscillations
without
potentially
beta
band
dyslexic
children.
We
collected
EEG
data
during
a
rhythmic
speech
paradigm
from
51
(21
control;
30
dyslexia).
then
assessed
entrainment,
angular
velocity,
power
responses
found
significant
entrainment
for
control
but
not
Furthermore,
exhibited
significantly
faster
velocity
greater
power.
Delta-beta
PAC
comparable
both
groups.
Atypical
were
observed
dyslexia.
However,
These
findings
offer
further
insights
into
neurophysiological
basis
processing
by
suggesting
involvement
wide
range
frequency
bands.
Developmental Science,
Год журнала:
2024,
Номер
27(4)
Опубликована: Март 14, 2024
Abstract
It
is
known
that
the
rhythms
of
speech
are
visible
on
face,
accurately
mirroring
changes
in
vocal
tract.
These
low‐frequency
visual
temporal
movements
tightly
correlated
with
output,
and
both
(e.g.,
mouth
motion)
acoustic
amplitude
envelope
entrain
neural
oscillations.
Low‐frequency
information
(‘visual
prosody’)
from
behavioural
studies
to
be
perceived
by
infants,
but
oscillatory
currently
lacking.
Here
we
measure
cortical
tracking
5‐
8‐month‐old
infants
using
a
rhythmic
paradigm
(repetition
syllable
‘ta’
at
2
Hz).
Eye‐tracking
data
were
collected
simultaneously
EEG,
enabling
computation
phase
angle
during
visual‐only
presentation.
Significantly
higher
power
stimulus
frequency
indicated
occurred
across
ages.
Further,
individual
differences
preferred
related
subsequent
measures
language
acquisition.
The
difference
between
same
presented
as
auditory‐visual
6‐
9‐months
was
also
examined.
suggest
early
acquisition
may
entrainment
input
infancy.
Research
Highlights
Infant
predicts
outcomes.
Significant
present
5
8
months.
Phase
months
predicted
greater
receptive
productive
vocabulary
24
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Фев. 28, 2023
Abstract
Infant-directed
singing
has
unique
acoustic
characteristics
that
may
allow
even
very
young
infants
to
respond
the
rhythms
carried
through
caregiver’s
voice.
The
goal
of
this
study
was
examine
neural
and
movement
responses
live
dynamic
maternal
in
7-month-old
their
relation
linguistic
development.
In
total,
60
mother-infant
dyads
were
observed
during
two
conditions
(playsong
lullaby).
Study
1
(
n
=
30),
we
measured
infant
EEG
used
an
encoding
approach
utilizing
ridge
regressions
measure
tracking.
2
40),
coded
rhythmic
movements.
both
studies,
assessed
children’s
vocabulary
when
they
20
months
old.
1,
found
above-threshold
tracking
singing,
with
superior
lullabies
than
playsongs.
We
also
features
infant-directed
modulated
2,
showed
more
playsongs
lullabies.
Importantly,
coordination
(Study
1)
2)
positively
related
infants’
expressive
at
months.
These
results
highlight
importance
brain
musical
presentations,
potentially
as
a
function
variability.
Developmental Cognitive Neuroscience,
Год журнала:
2023,
Номер
64, С. 101297 - 101297
Опубликована: Сен. 29, 2023
Eye
gaze
is
a
powerful
ostensive
cue
in
infant-caregiver
interactions,
with
demonstrable
effects
on
language
acquisition.
While
the
link
between
following
and
later
vocabulary
well-established,
of
eye
other
aspects
language,
such
as
speech
processing,
are
less
clear.
In
this
EEG
study,
we
examined
speaker's
ten-month-old
infants'
neural
tracking
naturalistic
audiovisual
speech,
marker
for
successful
processing.
Infants
watched
videos
speaker
telling
stories,
addressing
infant
direct
or
averted
gaze.
We
assessed
speech-brain
coherence
at
stress
(1-1.75
Hz)
syllable
(2.5-3.5
rates,
tested
differences
attention
by
comparing
looking
times
theta
power
two
conditions,
investigated
whether
predicts
vocabulary.
Our
results
showed
that
brains
tracked
rhythm
both
rate
predicted
However,
did
not
significantly
differ
conditions
infants
show
greater
to
Overall,
our
suggest
significant
ten
months,
related
development,
but
modulated
Frontiers in Human Neuroscience,
Год журнала:
2023,
Номер
17
Опубликована: Сен. 28, 2023
Sensory-neural
studies
indicate
that
children
with
developmental
dyslexia
show
impairments
in
processing
acoustic
speech
envelope
information.
Prior
suggest
this
arises
part
from
reduced
sensory
sensitivity
to
amplitude
rise
times
(ARTs
or
“edges”)
the
envelope,
accompanied
by
less
accurate
neural
encoding
of
low-frequency
Accordingly,
enhancing
these
characteristics
may
enhance
dyslexia.
Here
we
applied
an
modulation
enhancement
(EME)
algorithm
a
10-min
story
read
child-directed
(CDS),
ARTs
and
also
We
compared
(as
measured
using
MEG)
for
EME
same
natural
CDS
9-year-old
without
The
affected
power
domain
dyslexia,
particularly
delta
band
(0.5–4
Hz)
superior
temporal
gyrus.
This
prolonged
experience
could
ameliorate
some
shown
European Journal of Neuroscience,
Год журнала:
2024,
Номер
60(6), С. 5381 - 5399
Опубликована: Авг. 27, 2024
Abstract
While
infants'
sensitivity
to
visual
speech
cues
and
the
benefit
of
these
have
been
well‐established
by
behavioural
studies,
there
is
little
evidence
on
effect
neural
processing
continuous
auditory
speech.
In
this
study,
we
investigated
whether
cues,
such
as
movements
lips,
jaw,
larynx,
facilitate
tracking.
Ten‐month‐old
Dutch‐learning
infants
watched
videos
a
speaker
reciting
passages
in
infant‐directed
while
electroencephalography
(EEG)
was
recorded.
videos,
either
full
face
displayed
or
speaker's
mouth
jaw
were
masked
with
block,
obstructing
cues.
To
assess
tracking,
speech‐brain
coherence
(SBC)
calculated,
focusing
particularly
stress
syllabic
rates
(1–1.75
2.5–3.5
Hz
respectively
our
stimuli).
First,
overall,
SBC
compared
surrogate
data,
then,
differences
two
conditions
tested
at
frequencies
interest.
Our
results
indicated
that
show
significant
tracking
both
rates.
However,
no
identified
between
conditions,
meaning
not
modulated
further
presence
Furthermore,
demonstrated
low‐frequency
information
related
their
subsequent
vocabulary
development
18
months.
Overall,
study
provides
necessarily
impaired
when
are
fully
visible
may
be
potential
mechanism
successful
language
acquisition.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Март 30, 2023
Abstract
Children
with
dyslexia
are
known
to
show
impairments
in
perceiving
speech
rhythm,
which
impact
their
phonological
development.
Neural
rhythmic
studies
have
reported
atypical
delta
phase
children
dyslexia,
but
beta
band
effects
not
yet
been
studied.
It
is
that
modulates
the
amplitude
of
response
during
tasks
via
delta-beta
phase-amplitude
coupling
(PAC).
Accordingly,
for
may
imply
related
effects.
Here
we
analyse
EEG
data
collected
a
paradigm
from
51
(21
typically-developing;
30
dyslexia)
who
attended
talking
head
repeating
“ba”
at
2Hz.
Phase
entrainment
band,
angular
velocity
power
responses
and
PAC
were
assessed
each
child
group.
was
only
significant
without
dyslexia.
did
exhibit
any
consistency,
beta-band
significantly
faster
compared
control
children.
Power
greater
Delta-beta
both
groups.
The
interpreted
respect
temporal
sampling
theory.
The
developmental
community
is
beginning
to
embrace
the
idea
of
exaggerated
rhythm
in
infant
and
child-directed
speech
providing
critical
information
during
early
language
acquisition.
Here,
we
consider
I/CDS
as
a
special
case
language,
with
enhanced
multimodal
temporal
prosodic
cues,
attuned
needs
listener.
evidence
supporting
this
largely
based
on
disorders
(e.g.,
dyslexia,
DLD),
relatively
sparse
extant
literature
typical
development.
However,
field
rapidly
growing,
methodological
advances
cortical
behavioural
rhythmic
tracking
allowing
us
better
understand
organising
principles
processing.
We
address
multiple
approaches
adopted
across
research
communities,
commentary
both
reach
suitability
these
methods.
From
nascent
literature,
chapter
aims
paint
coherent
picture
field's
current
state,
recommendations
for
future
research.
