Ugo Basile Active Avoidance

Ugo Basile's Active Avoidance (Shuttle-Box) Apparatus is a fear-motivated task in which the animal learns to predict the occurrence of an aversive event (shock) based on the presence of a stimulus (tone) and moves to a second compartment to avoid the aversive event (shock).

Ugo Basile Active Avoidance (Shuttle-Box) Apparatus for Mice and Rats

Automatically records:
· Number of Avoidances (the mouse crossing to the other compartment during the warning signal)
· Number of non-responses (the mouse failing to cross to the other compartment during the trial)
· Response latency (latency to avoid or escape)
· Number of intertrial responses (crossing the barrier within the intertrial interval)

Testing is conducted in a two chamber cage, sectioned by a partition with an intercommunicating opening at floor level. Both compartments are lighted by overhead stimulus lights. Each compartment is equipped with a grid floor which delivers the foot shock. The tilting floor ensures reliable detection of movement across the two compartments.

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