posture cognition

posture cognition - 
 Posture
and
Behavior
...

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Unformatted text preview: 10/7/10
 Posture
and
Behavior
 Posture
and
Cognition
 •  Dominant
paradigm
in
posture
research
is
 to
measure
whole
body
fluctuations
while
 people
stand
on
a
force
plate.


 •  However,
posture
is
not
an
end
in
itself
but
 rather
a
means
to
an
end
 –  Riccio
&
Stoffregen
(1988)
 Posture
and
Behavior
 •  For
example,
people
do
not
typically
fall
 when
they
are
just
standing
still.

Rather
 they
fall
when
engaged
in
some
other
task.
 •  Examining
how
people
integrate
posture
 with
other
behaviors
(dual‐task)
may
be
 better
way
to
study
falls
in
the
elderly


 Posture
and
Cognition
 •  Cognitive
resources
actually
used
to
control
 posture
(standing
and
thinking
may
cause
 postural
instabilities).
 –  Huxhold
et
al.
2006
 •  If
so
this
could
have
large
impact
on
what
we
 think
about
regarding
the
etiology
of
falls
in
the
 elderly
 –  Decreases
in
skeletal
and
muscle
mass
 –  Decreases
in
sensory
sensitivities
 –  Possible
decreases
in
cognitive
resources?
 Posture
and
Cognition
 •  New
“hot ”
topic
in
postural
literature
 •  Increased
cognitive
demands
have
been
 shown
to
change
postural
sway
 –  (see
review;
Woollacott,
2002)
 Posture
and
Cognition
 •  Exactly
how
sway
changes
is
up
for
debate.
 Riley
et
al.
2005
 1
 10/7/10
 Posture
and
Cognition
 Why
the
discrepancy
in
results
 •  Possible
discussion
topics
 –  The
difficulty
of
the
cognitive
task
 –  The
type
of
cognitive
 –  The
characteristics
of
the
participant
 –  Others?
 Woollacott
et
al.
2002
 2
 ...
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