Table 1.
Group | Acquisition | Extinction | Test | |
---|---|---|---|---|
Experiment 1 | ||||
SC-C (P) | SP:P → SC: C + | (P, C) | SC: C − (P, C) | SP: P − (P, C) |
SC-C | SP:P → SC: C + | (P, C) | SC: C − (C) | SP: P − (P, C) |
SC Only | SP:P → SC: C + | (P, C) | SC − | SP: P − (P, C) |
Handle | SP:P → SC: C + | (P, C) | ---- | SP: P − (P, C) |
Experiment 2 | ||||
Extinguished | SP1:P1 → SC1:C1 + SP2:P2 → SC2:C2 + |
(P1, P2, C1, C2) | SC1:C1 − (C1) | SP1:P1 − (P1, P2) SP2:P2 − |
Handle | SP1:P1 → SC1:C1 + SP2:P2 → SC2:C2 + |
(P1, P2, C1, C2) | ---- | SP1:P1 − (P1, P2) SP2:P2 − |
Note. P and C, and SP and SC refer to procurement and consumption responses, and SDs, respectively. + designates reinforcement, − designates nonreinforcement (extinction), ---- designates handling without exposure to the experimental apparatus. Parentheses indicate which response manipulanda were present in a given phase.