Vertical jumping and signaled avoidance.

Researchers taught rats to avoid shock by jumping straight up. A light came on first. If the rat jumped during the light, no shock came. This is called signaled avoidance.

They tested two things. First, they made the learning goal harder. Some rats had to jump once. Others had to jump three or five times. Second, they changed the wait time between trials. Some rats waited 15 seconds. Others waited 40 seconds.

All rats learned to jump and cut shocks. Harder goals took more practice. Rats that had to jump five times needed more trials than rats that had to jump once.

The wait time between trials did not matter. Rats learned just as fast with 15-second waits as with 40-second waits.

Rickert et al. (1988) got the same result with green crabs. The crabs pulled back their eyes when a light warned them. Both studies show signaled avoidance works across very different animals and responses.

Catania et al. (1966) ran free-operant avoidance. They found that longer intervals between shocks changed how rats pressed a lever. The new study keeps the interval the same and instead changes the response form to jumping. Together they map how both time and response shape avoidance.

Reberg et al. (1979) also tested new topographies. They used bar press and bar release. Adding vertical jumping shows almost any movement can become an avoidance response if it cancels the shock.

When you pick a response to teach escape or avoidance, choose one the learner can do easily. The rat study shows the form of the response does not slow learning; the rule for success does. If your client must do more to avoid the aversive, give extra practice trials. The time between chances does not need to be exact.