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Design of Trask et al. (2020), Experiment 1.
| Group | Acquisition | Devaluation | Test |
|---|---|---|---|
| R2-Paired | A: R1+ (24 sessions) B: R2+ (4 sessions) |
A/B: O--LiCI | A: R1− |
| R2-Unpaired | A/B: O / LiCI | ||
| Exposure-Paired | A: R1+ (24 sessions) B: ---- |
A/B: O--LiCI | |
| Exposure-Unpaired | A/B: O / LiCI |
A and B refer to contexts (counterbalanced). R1 and R2 represent lever-pressing and chain-pulling (counterbalanced). O represents the outcome. + and − refer to reinforced and unreinforced, respectively.
