Table 1.

Pavlovian second-order conditioning procedure used in Experiments 1A and 2A

GroupPhase 1Phase 2
First-order conditioningPretest toneSecond-order conditioningReminder trials
PULight→foodToneTone, lightLight→food
UPLight, foodToneTone→lightLight, food
  • The tone pretest occurred during the first half of the first session of Phase 2. Second-order conditioning and first-order reminder trials were randomly intermixed throughout the remainder of Phase 2. →, Paired presentation; , indicates explicitly unpaired presentation.