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Summary: Active sensation: insights from the rodent vibrissa
sensorimotor system
David Kleinfeld1
, Ehud Ahissar2
and Mathew E Diamond3
Rats sweep their vibrissae through space to locate objects in
their immediate environment. In essence, their view of the
proximal world is generated through pliable hairs that tap and
palpate objects. The texture and shape of those objects must
be discerned for the rat to assess the value of the object.
Furthermore, the location of those objects must be specified
with reference to the position of the rat's head for the rat to plan
its movements. Recent in vivo and in vitro electrophysiological
measurements provide insight into the algorithms and
mechanisms that underlie these behavioral-based
computations.
Addresses
1
Department of Physics, University of California at San Diego, 9500
Gilman Drive 0374, La Jolla, California 92093, USA
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