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Abstract:
The body schema is a spatial representation of the human body
used, in part, for knowledge about body position. We investigate
the contributions of several mechanisms potentially influencing the
use of the body schema: proprioception, self-other relationships,
number of body representations in active memory, and representation
maintenance time. We report three experiments utilizing a dual task
paradigm: participants perform guided movements while detecting
changes in a model 's target body position. Our results indicate
that representation maintenance time plays a critical role in
determining how the body schema is engaged. It influences whether
self-other body position relationships produce relative
facilitative or inhibitory effects.
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