scholarly journals A comparison of positive and negative contrast effects

1978 ◽  
Vol 11 (6) ◽  
pp. 363-366
Author(s):  
James H. McHose ◽  
John N. Moore
Keyword(s):  
Negative Contrast ◽  
Contrast Effects

Effect of handling on positive and negative contrast effects

1980 ◽  
Vol 13 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Jeffrey W. Fagen ◽  
Robert F. Rycek
Keyword(s):  
Negative Contrast ◽  
Contrast Effects

Transfer and Non-Transfer Successive Incentive Contrast Effects in the Rat

1976 ◽  
Vol 28 (4) ◽  
pp. 541-551 ◽  
Author(s):  
P. E. Wookey
Keyword(s):  
Negative Transfer ◽  
Negative Contrast ◽  
Present Theory ◽  
Frustration Theory ◽  
Adaptation Level ◽  
Contrast Effects ◽  
Transfer Effects ◽  
Incentive Contrast ◽  
Adaptation Level Theory ◽  
Lever Pressing

Recent evidence concerning successive incentive contrast suggests the occurrence of both positive and negative contrast effects under both non-transfer and transfer conditions. There are three types of explanation for these contrast effects, based on frustration theory, sequential theory and adaptation level theory (perceptual accounts). One of the critical experiments favouring perceptual accounts, Collier and Marx (1959), is subject to a number of methodological criticisms. This experiment was repeated, with modifications to take account of these criticisms, and extended to include transfer, as well as non-transfer, conditions. There was no evidence of contrast. In a further experiment using Collier and Marx's procedure with lever pressing and panel pushing, positive and negative, transfer and non-transfer effects were found using Noyes pellets rather than sucrose as reward. It is suggested that these results contribute some support to perceptual accounts of incentive contrast, although no present theory is entirely satisfactory.

An Adaptive Response to Uncertainty Generates Positive and Negative Contrast Effects

Science ◽  
2013 ◽  
Vol 340 (6136) ◽  
pp. 1084-1086 ◽  
Author(s):  
J. M. McNamara ◽  
T. W. Fawcett ◽  
A. I. Houston
Keyword(s):  
Adaptive Response ◽  
Negative Contrast ◽  
Contrast Effects

Another Failure to Obtain Negative Incentive Contrast following Reductions in Sucrose Reward

1973 ◽  
Vol 33 (3) ◽  
pp. 801-802 ◽  
Author(s):  
W. Barnes ◽  
Tom N. Tombaugh
Keyword(s):  
Negative Contrast ◽  
Solid Food ◽  
Contrast Effects ◽  
Discrete Trial ◽  
Sucrose Reward ◽  
Incentive Contrast ◽  
Reward Reduction

The effects of reductions in volume only, concentration only, and volume plus concentration of sucrose rewards were studied in a discrete-trial (retractable bar) situation. There was no evidence of abrupt behavioral decrements or negative contrast effects associated with any type of reward reduction. The present results are in opposition to those obtained following variations in solid food rewards. These findings suggest that the effects of sucrose and solid food manipulations require different theoretical interpretations.

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