Entropy,
Год журнала:
2023,
Номер
25(9), С. 1364 - 1364
Опубликована: Сен. 21, 2023
Entropy-based
and
fractal-based
metrics
derived
from
heart
rate
variability
(HRV)
have
enriched
the
way
cardiovascular
dynamics
can
be
described
in
terms
of
complexity.
The
most
commonly
used
multifractal
testing,
a
method
using
q
moments
to
explore
range
fractal
scaling
small-sized
large-sized
fluctuations,
is
based
on
detrended
fluctuation
analysis,
which
examines
power–law
relationship
standard
deviation
with
timescale
measured
signal.
A
more
direct
testing
structure
exists
Shannon
entropy
bin
(signal
subparts)
proportion.
This
work
aims
reanalyze
HRV
during
cognitive
tasks
obtain
new
markers
complexity
provided
by
entropy-based
spectra
proposed
Chhabra
Jensen
1989.
Inter-beat
interval
durations
(RR)
time
series
were
obtained
28
students
comparatively
baseline
(viewing
video)
three
tasks:
Stroop
color
word
task,
stop-signal,
go/no-go.
estimators
extracted
f/α
singularity
spectrum
RR
magnitude
increment
series,
established
q-weighted
stable
(log–log
linear)
power
laws,
namely:
(i)
whole
width
(MF)
calculated
as
αmax
−
αmin;
specific
representing
fluctuations
(MFlarge)
α0
αq+;
(MFsmall)
αq−
α0.
As
main
results,
had
MF
signature
while
MFlarge
was
rather
these
could
represent
different
aspects
complete
picture
cognitive–autonomic
interplay
discussed,
previously
entropy-
markers,
introduction
distribution
(DistEn),
marker
recently
associated
specifically
control.
Journal for Person-Oriented Research,
Год журнала:
2024,
Номер
10(2), С. 89 - 99
Опубликована: Дек. 13, 2024
Ecological
momentary
assessment
(EMA)
of
affect,
cognition
and
behavior
aims
to
provide
a
‘window
into
person’s
daily
life’.
But
what
should
we
look
for
through
this
window?
In
paper,
compare
statistical
perspective,
grounded
in
probability
theory,
with
dynamic
pattern
complexity
on
two
common
phenomena
EMA
data:
non-stationarity
outlying
values.
From
these
are
considered
nuisances
that
be
dealt
with.
contrast,
may
signal
transitions
from
one
another
(e.g.,
transition
neutral
persistent
sad
mood),
whereas
values
recovery
perturbations
stressful
life
events).
We
evaluated
the
view
triangulation
study
multiple
single
cases
took
part
Track
your
Mood
study,
where
participants
reported
their
emotions
events
60
days.
found
was
indeed
related
transition,
were
after
perturbations.
These
findings
show
person-oriented
research
would
benefit
perspective
can
identify
highly
meaningful
clinically
relevant
otherwise
at
risk
being
missed.
Complementing
time
series
contextual
information
qualitative
data
will
essential
genuinely
understand
phenomena.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Дек. 30, 2024
Long-latency
reflexes
(LLRs)
are
critical
precursors
to
intricate
postural
coordination
of
muscular
adaptations
that
sustain
equilibrium
following
abrupt
disturbances.
Both
disturbances
and
adaptive
responses
reflect
excursions
control
from
quiescent
Gaussian
stability
under
a
narrow
bell
curve,
beyond
Gaussianity
unfolding
at
many
timescales.
LLRs
slow
with
age,
accentuating
the
risk
falls
undermining
dexterity,
particularly
in
settings
concurrent
additional
tasks.
We
investigated
whether
wobble
board
could
cultivate
engagement
selectively
healthy
young
participants
executing
suprapostural
Trail
Making
Task
(TMT).
A
additional-task
demand
constituted
visual
precision
predominantly
along
anteroposterior
(AP)
axis
mechanical
instability
mainly
mediolateral
(ML)
axis.
scrutinized
planar
center-of-pressure
(CoP)
trajectories
quantify
non-Gaussianity
across
various
temporal
scales.
Wobble
increased
decreased
compensatory
adjustments
(CPAs),
indicated
by
peak
CoP
displacements
over
LLR-specific
timescales
(50-100
ms)
progressively
diminishing
CPA-specific
([Formula:
see
text]
ms).
Engagement
TMT
did
not
show
any
noticeable
influence
on
non-Gaussian
sway
patterns.
Despite
aligning
unstable
participants'
ML
axis,
thus
rendering
posture
more
significantly
AP
reduced
CPAs
These
findings
offer
initial
mechanistic
insights
into
how
boards
may
bolster
balance
potentially
reduce
occurrence
catalyzing
selectively.
Topics in Cognitive Science,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 8, 2024
The
interaction-dominant
approach
to
perception
and
action,
originally
formulated
in
the
mid-1990s,
has
matured
gained
remarkable
momentum
as
an
entailment
of
dynamical
hypotheses
proposed
at
that
time.
This
framework
seeks
explain
fluid
intricate
interplay
causality
spanning
entire
organism
by
integrating
high-dimensional
details
with
low-dimensional
constraints
across
various
scales
behavior.
Both
Chemero
(2024)
Wallot
et
al.
have
skillfully
explored
theoretical
implications
methodological
challenges
this
perspective
introduces.
We
echo
Chemero's
al.'s
focus
on
multifractality,
while
also
underscoring
new
efforts
model
synergetic
relationships
cascading
dynamics
inherent
approach.
Entropy,
Год журнала:
2023,
Номер
25(9), С. 1364 - 1364
Опубликована: Сен. 21, 2023
Entropy-based
and
fractal-based
metrics
derived
from
heart
rate
variability
(HRV)
have
enriched
the
way
cardiovascular
dynamics
can
be
described
in
terms
of
complexity.
The
most
commonly
used
multifractal
testing,
a
method
using
q
moments
to
explore
range
fractal
scaling
small-sized
large-sized
fluctuations,
is
based
on
detrended
fluctuation
analysis,
which
examines
power–law
relationship
standard
deviation
with
timescale
measured
signal.
A
more
direct
testing
structure
exists
Shannon
entropy
bin
(signal
subparts)
proportion.
This
work
aims
reanalyze
HRV
during
cognitive
tasks
obtain
new
markers
complexity
provided
by
entropy-based
spectra
proposed
Chhabra
Jensen
1989.
Inter-beat
interval
durations
(RR)
time
series
were
obtained
28
students
comparatively
baseline
(viewing
video)
three
tasks:
Stroop
color
word
task,
stop-signal,
go/no-go.
estimators
extracted
f/α
singularity
spectrum
RR
magnitude
increment
series,
established
q-weighted
stable
(log–log
linear)
power
laws,
namely:
(i)
whole
width
(MF)
calculated
as
αmax
−
αmin;
specific
representing
fluctuations
(MFlarge)
α0
αq+;
(MFsmall)
αq−
α0.
As
main
results,
had
MF
signature
while
MFlarge
was
rather
these
could
represent
different
aspects
complete
picture
cognitive–autonomic
interplay
discussed,
previously
entropy-
markers,
introduction
distribution
(DistEn),
marker
recently
associated
specifically
control.