Table 1.
Design Summary of Experiment 1
Group | Phase 1 | Phase 2 | Test X |
---|---|---|---|
AX+ | 6 A+/6 X+ | 8 AX+ | Cr |
BX+ | 6 A+/6 X+ | 8 BX+ | CR |
Note: CSs A and B were a complex tone and a white noise exposure, counterbalanced within groups. CS X was a click train. All CSs were 10 s during training and 30 s during testing. The US (+) was a brief footshock. Slashes denote interspersed trials within sessions. CR (Cr) denotes a strong (intermediate) expected conditioned response based upon prior research. Training (Phases 1 and 2) was conducted in one context and testing was conducted in a physically distinct context.