Table 2.

Results of reinforcer devaluation testing

CaseTest 1Test 2Test 2-test 1 difference
Baseline F1:F2Satiation F1 F1:F2Satiation F2 F1:F2Difference score (sum)Baseline F1:F2Satiation F1 F1:F2Satiation F2 F1:F2Difference score (sum)
Con122:814 :1626 :41223.5:6.57 :2327 :3208
Con214:1612 :1822 :81019.5:10.513 :1728 :2155
Con327.5:2.528:229 :1120:1013 :1719 :1165
Con421.5:8.57 :2322 :81515.5:14.56 :2424 :6183
Mean9.514.755.25
Op118.5:11.516 :1426 :41025:523 :728 :25−5
Op224.5:5.517 :1326 :4929.5:0.523 :730 :07−2
Op320.5:9.512 :1825 :51323.5:6.521 :922 :81−12
Op4 2.5:27.50 :302 :2820:300 :302 :2820
Mean8.53.75−4.75
  • The number of food 1 (F1) and food 2 (F2) objects chosen in the baseline sessions (mean of two sessions) and each of the two satiation sessions (preceded by satiation with food 1 or food 2), as well as the difference score between the satiation sessions and the baseline sessions (summed for the two satiation sessions), are given for reinforcer devaluation test 1 and test 2 for each of the eight monkeys (Con1–Con4, control monkeys; Op1–Op4, operated monkeys).