Sensorimotor synchronization to rhythm in an experienced sea lion rivals that of humans
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Май 1, 2025
Is
human
beat
keeping
unique
among
vertebrates?
The
only
non-human
data
showing
consistent
and
lagless
matching
to
novel
stimuli,
including
music,
come
from
Ronan,
a
trained
sea
lion
[Cook
et
al.,
J.
Comp.
Psychol.,
127(4):412-427].
Ronan's
convincing
demonstration
of
adaptive
auditory-motoric
entrainment
at
age
3
years
showed
stronger
tempo-phase
relationships
higher
variability
than
reported
in
similar
studies
subjects.
This
apparent
performance
mismatch
has
been
used
suggest
the
mechanisms
underlying
her
ability
are
not
isomorphic
with
those
humans.
However,
twelve
since
our
original
report,
Ronan
continued
intermittent
beat-keeping
practice.
Comparative
arguments
should
consider
improved
increased
experience
evaluate
against
subjects
performing
rhythmic
tasks.
Here,
we
report
contemporary
synchronize
head
movements
metronomic
sounds
presented
tempos.
We
also
provide
for
ten
humans
moving
time
same
stimuli
using
comfortable
arm
motion
amplitude.
lion's
sensorimotor
synchronization
was
precise,
consistent,
indistinguishable
or
superior
that
typical
adults.
These
findings
challenge
claims
neurobiological
adaptations
Язык: Английский
White matter structural bases for phase accuracy during tapping synchronization
eLife,
Год журнала:
2024,
Номер
13
Опубликована: Сен. 4, 2024
We
determined
the
intersubject
association
between
rhythmic
entrainment
abilities
of
human
subjects
during
a
synchronization-continuation
tapping
task
(SCT)
and
macro-
microstructural
properties
their
superficial
(SWM)
deep
(DWM)
white
matter.
Diffusion-weighted
images
were
obtained
from
32
who
performed
SCT
with
auditory
or
visual
metronomes
five
tempos
ranging
550
to
950
ms.
developed
method
determine
density
short-range
fibers
that
run
underneath
cortical
mantle,
interconnecting
nearby
regions
(U-fibers).
Notably,
individual
differences
in
U-fibers
right
audiomotor
system
correlated
degree
phase
accuracy
stimuli
taps
across
subjects.
These
correlations
specific
synchronization
epoch
around
1.5
Hz.
In
addition,
significant
was
found
bundle
diameter
corpus
callosum
(CC),
forming
an
interval-selective
map
where
short
long
intervals
behaviorally
anterior
posterior
portions
CC.
findings
suggest
structural
SWM
DWM
support
subjects,
as
U-fiber
is
linked
preferred
tempo
CC
define
topography.
Язык: Английский
Perturbation context in paced finger tapping tunes the error-correction mechanism
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Ноя. 11, 2024
Sensorimotor
synchronization
(SMS)
is
the
mainly
specifically
human
ability
to
move
in
sync
with
a
periodic
external
stimulus,
as
keeping
pace
music.
The
most
common
experimental
paradigm
study
its
largely
unknown
underlying
mechanism
paced
finger-tapping
task,
where
participant
taps
sequence
of
brief
stimuli.
Contrary
reaction
time,
this
task
involves
temporal
prediction
because
needs
trigger
motor
action
advance
for
tap
and
stimulus
occur
simultaneously,
then
an
error-correction
takes
past
performance
input
adjust
following
prediction.
In
different,
simpler
it
has
been
shown
that
exposure
distribution
individual
intervals
creates
"temporal
context"
can
bias
estimation/production
single
target
interval.
As
estimation
production
are
also
involved
SMS,
we
asked
whether
period
perturbations
would
show
any
time-related
context
effect.
work
perturbation
indeed
be
generated
by
during
finger
tapping,
affecting
shape
size
resynchronization
curve.
Response
asymmetry
affected,
thus
evidencing
interplay
between
intrinsic
nonlinearities
correction
mechanism.
We
conclude
calibrates
SMS.
Язык: Английский