Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: May 29, 2025
Abstract
Successful
motor
coordination
in
social
interactions
requires
the
rapid
interpretation
of
others’
intentions
from
their
actions.
Previous
research
suggests
that
individuals
use
early
bodily
cues,
such
as
movement
kinematics
and
gaze,
to
predict
behaviour.
However,
features
critical
for
signaling
or
decoding
potential
remain
unclear.
In
this
study,
we
measured
a
basic
act
—
grasping
an
object
executed
with
either
individualistic
(to
place)
pass)
intentions.
Subsequently,
conducted
two
action
prediction
tasks
identify
markers
(social)
Hand
positioning
on
emerged
key
kinematic
indicator
intention
interact
partner,
shown
by
analyses
classification
participants’
responses.
Eye-tracking
analysis
revealed
face
most
attended
feature
during
observation.
Notably,
these
cues
were
more
consistently
when
observing
actions
frontal
second-person
perspective
rather
than
lateral
third-person
perspective.
Our
findings
highlight
saliency
hand-object
engagement
contexts.
They
also
provide
novel
evidence
affordance
processing,
expressed
execution
observation,
related
others.
These
interactions.
