Effects Of Reward Magnitude Research Articles

Reward magnitude and instrumental responses: Consistent and partial reward

Two studies using partial or consistent large (500 mg) and small (45 mg) reward are presented. In both studies, after extended reward acquisition, differences are negligible or nonexistent. Results from the partial reward groups indicate extinction differences also disappear after extended training. These results do not seem to be in line with usual assumptions regarding the effects of reward magnitude.

Partially delayed reward: Some effects of sequential reward magnitude in the rat.

Partially delayed reward: Some effects of sequential reward magnitude in the rat.

Proportion of large-reward trials and within-subject reward magnitude effects.

Proportion of large-reward trials and within-subject reward magnitude effects.

Species generality of within-subjects reward magnitude effects.

Species generality of within-subjects reward magnitude effects.

Effects of Reward Magnitude and Duration on Runway Performance

Rats ( N = 60) received large rewards with unlimited consummatory time, large rewards with a 20-sec. goal-box time limit, or small rewards with a 20-sec. time limit. Runway performance was a function of reward size but not consummatory time.

Effects of rule structure and reward magnitude on the acquisition and adoption of self-reward criteria.

This study investigated the effects of rule structure and reward magnitude on children's acquisition and adoption of a self-reward criterion that a training agent had either displayed or imposed. A 2 × 2 × 2 × 2 factorial design, with two levels of rule structure, two levels of reward magnitude, two modes of training, and sex differentiation was employed. as predicted, high rule structuring resulted in less rule deviation and more self-rewarding verbalizations than did low rule structuring. However, contrary to prediction, high-reward Ss did not differ significantly from low-reward Ss with respect to the amount of rule violation committed in the training agent's absence.

Percentage of reinforcement and reward magnitude effects in a T MAZE: between and within subjects.

Percentage of reinforcement and reward magnitude effects in a T MAZE: between and within subjects.

Simultaneous and successive contrast effects of reward magnitude in selective learning.

Simultaneous and successive contrast effects of reward magnitude in selective learning.

Methodological Study of the Effects of Relative Reward Magnitude on Performance

Methodological Study of the Effects of Relative Reward Magnitude on Performance

Magnitude of reward and the frustration effect in a within-subjects design

The effect of reward magnitude in the first goal box (G1) of a double runway on the size of the frustration effect (FE) was studied, using a within-subjects design. During a preliminary phase, 11 rats were run in black and in white first alleys (A1) the reward in G1 being (say) large when A1 was black and small when A1 was white. Test trials followed, in which percent reward in G1 was reduced from 100 to 50 in both the large- and small-magnitude alleys. The results indicated a significantly larger FE after nonreward in the A1 associated with the larger reward. More important, N-trials following nonreward in the large-reward A1 were significantly faster than N-trials following nonreward in the small-reward A.

Effects of deprivation schedule and reward magnitude on acquisition and extinction performance.

Effects of deprivation schedule and reward magnitude on acquisition and extinction performance.

Effect of reward magnitude, percentage of reinforcement, and training method on acquisition and reversal in a T maze.

Effect of reward magnitude, percentage of reinforcement, and training method on acquisition and reversal in a T maze.

Deprivation and reward magnitude effects on speed throughout the goal gradient.

Deprivation and reward magnitude effects on speed throughout the goal gradient.