Grip force as a functional window to somatosensory cognition
Frontiers in Psychology,
Год журнала:
2022,
Номер
13
Опубликована: Окт. 14, 2022
Analysis
of
grip
force
signals
tailored
to
hand
and
finger
movement
evolution
changes
in
control
during
task
execution
provide
unprecedented
functional
insight
into
somatosensory
cognition.
Somatosensory
cognition
is
the
basis
our
ability
act
upon
transform
physical
world
around
us,
recognize
objects
on
touch
alone,
grasp
them
with
right
amount
for
lifting
manipulating
them.
Recent
technology
has
permitted
wireless
monitoring
recorded
from
biosensors
palm
human
track
trace
forces
deployed
cognitive
tasks
executed
under
conditions
variable
sensory
(visual,
auditory)
input.
Non-invasive
multi-finger
sensor
can
be
exploited
explore
interactions
between
brain
mechanisms
motor
control,
particular
learning
a
where
planning
strategic
movements
essential.
Sensorial
processes
underlying
manual
skills
and/or
hand-specific
(dominant
versus
non-dominant
hand)
behaviors
studied
variety
contexts
by
probing
selected
measurement
loci
fingers
hand.
Thousands
data
multiple
spatial
locations
approached
statistically
breathe
sense
measured
specific
constraints.
Grip
patterns
individual
performance
profiling
may
reveal
as
direct
result
learning.
functionally
mapped
from-global-to-local
coding
principles
networks
governing
leading
expertise
or
skill.
Under
light
comprehensive
overview
recent
discoveries
significance
variations,
perspectives
future
studies
cognition,
relevant
complex
real-world
precision
task,
are
pointed
out.
Язык: Английский
Deficits in rate of force production during multifinger tasks are associated with cognitive status
International Journal of Geriatric Psychiatry,
Год журнала:
2022,
Номер
37(6)
Опубликована: Май 5, 2022
The
multifinger
force
deficit
(MFFD)
is
the
decline
in
generated
by
an
individual
finger
as
number
of
fingers
contributing
to
action
increased.
It
has
been
proposed
that
a
measure
neural
sufficiency
rather
than
muscle
status,
it
provides
means
detecting
individuals
at
risk
cognitive
decline.
Age-related
deficits
central
drive
exert
disproportionate
impact
on
rate
which
can
be
generated.
We
examined
whether
MFFD
derived
from
maximum
generated,
more
sensitive
differences
one
calculated
using
level
force.
Язык: Английский
Deficits in force production during multifinger tasks demarcate cognitive dysfunction
Aging Clinical and Experimental Research,
Год журнала:
2024,
Номер
36(1)
Опубликована: Апрель 5, 2024
Abstract
Background
The
multifinger
force
deficit
(MFFD)
is
the
decline
in
generated
by
each
finger
as
number
of
fingers
contributing
to
an
action
increased.
It
has
been
shown
associate
with
cognitive
status.
Aims
aim
was
establish
whether
a
particularly
challenging
form
grip
dynamometry,
that
provides
minimal
tactile
feedback
via
cutaneous
receptors
and
requires
active
compensation
for
reaction
forces,
will
yield
MFFD
more
sensitive
Methods
Associations
between
measures
motor
function,
status
(Montreal
Cognitive
Assessment
[MoCA])
latent
components
function
(derived
from
11
tests
using
principal
component
analysis),
were
estimated
cross-sectionally
generalized
partial
rank
correlations.
participants
(
n
=
62)
community
dwelling,
aged
65–87.
Results
Approximately
half
unable
complete
dynamometry
task
successfully.
demarcated
individuals
who
could
perform
those
not.
Among
complied
requirements,
negatively
correlated
MoCA
scores—those
highest
scores
tended
exhibit
smallest
deficits,
vice
versa.
There
corresponding
associations
function.
Discussion
results
support
view
neurodegenerative
processes
are
feature
normal
pathological
aging
exert
effects
on
expressions
coordination—in
tasks,
sufficiency,
due
their
dependence
shared
neural
systems.
Conclusions
outcomes
add
weight
assertion
deficits
production
during
tasks
dysfunction.
Язык: Английский
Sensory Factors Influence Dynamic and Static Bi-Manual Finger Grip Strength in a Real-World Task Context
Applied Sciences,
Год журнала:
2024,
Номер
14(9), С. 3548 - 3548
Опубликована: Апрель 23, 2024
Individual
grip
strength
provides
a
functional
window
into
somatosensory
processes
and
their
effects
on
motor
behaviour
in
healthy,
impaired,
ageing
individuals.
Variations
during
hand–tool
interaction
are
therefore
exploited
variety
of
experimental
tasks
to
study
the
pathology
or
ageing-related
changes
sensory,
motor,
cognitive
ability.
However,
many
different
factors
may
influence
individual
systematically
given
task
context
without
being
explicitly
identified
controlled
for.
Grip
vary
as
function
location
measurement
device
(sensor)
fingers/hand,
shape,
weight
size
object(s)
gripped,
type
investigated
(static
versus
dynamic
grip),
hand
(dominant
non-dominant)
used
for
gripping.
This
tests
additional
such
sight,
sound,
interactions
with/between
any
other
complex
context.
A
wearable
biosensor
system,
designed
measuring
variations
operators
gripping
cylindrical
objects
bi-manually,
was
used.
force
signals
were
recorded
from
all
sensors
(glove)
including
three
directly
task-relevant
bi-manually
with
dominant
non-dominant
hands.
Five
young
male
participants
tested
movement,
sight
strength.
The
had
pick
up
two
identical
weight,
then
hold
them
still
grip)
move
upwards
downwards
(dynamic
ten
seconds
while
listening
soft
hard
music,
eyes
open
blindfolded.
Significant
sensor
location,
hand,
sound
bi-manual
found.
Stronger
produced
by
when
moving
handles
comparison
static
condition,
depending,
expected,
whether
measured
hand.
Significantly
weaker
blindfolded
(sight
condition),
grips
significantly
stronger
exposure
harder
music
(sound
factor).
It
is
concluded
that
influenced
sensory
between
for,
pointing
towards
need
identifying
controlling
potential
sources
variation
contexts.
Язык: Английский