scholarly journals Negative incentive contrast effects with sucrose and rats as due to aggression

1982 ◽  
Vol 19 (6) ◽  
pp. 359-361 ◽  
Author(s):  
Lawrence Weinstein
Keyword(s):  
Contrast Effects ◽  
Incentive Contrast

Incentive contrast effects in humans with monetary reinforcement and reaction time

1981 ◽  
Vol 47 (1) ◽  
pp. 83-87 ◽  
Author(s):  
Lawrence Weinstein
Keyword(s):  
Reaction Time ◽  
Contrast Effects ◽  
Incentive Contrast ◽  
Monetary Reinforcement

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.

Positive and Negative Incentive Contrast Effects with Rats as a Function of Sex

1978 ◽  
Vol 98 (2) ◽  
pp. 179-185
Author(s):  
Lawrence Weinstein
Keyword(s):  
Contrast Effects ◽  
Incentive Contrast

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.

scholarly journals A test for successive incentive contrast effects with a highly preferred fluid reward

1985 ◽  
Vol 23 (4) ◽  
pp. 418-420 ◽  
Author(s):  
W. Miles Cox ◽  
John E. Mertz
Keyword(s):  
Contrast Effects ◽  
Incentive Contrast

Positive Incentive Contrast as a Function of Age and Length of Training in Rats

1977 ◽  
Vol 40 (2) ◽  
pp. 507-511
Author(s):  
Lawrence Weinstein
Keyword(s):  
Operant Conditioning ◽  
Positive Contrast ◽  
Positive Function ◽  
Albino Rats ◽  
Operant Conditioning Chamber ◽  
Conditioning Chamber ◽  
Contrast Effects ◽  
Incentive Contrast ◽  
Saccharine Solution ◽  
Old Rats

Exp. I demonstrated that positive incentive contrast effects in an operant conditioning chamber produced by an increase in the concentration of a saccharine solution in 30 180-day-old rats (older animals) are not found in 30 25-day-old rats (younger rats). Exp. II indicated that the probability of obtaining positive contrast with 60 male albino rats is a positive function of the length of the preshift period.

Apparent Incentive Contrast Effects in Autoshaping with Rats

2001 ◽  
Vol 32 (4) ◽  
pp. 434-456 ◽  
Author(s):  
Mauricio R. Papini ◽  
H.Wayne Ludvigson ◽  
David Huneycutt ◽  
Robert L. Boughner
Keyword(s):  
Contrast Effects ◽  
Incentive Contrast

scholarly journals Negative incentive contrast effects with saccharin vs sucrose and partial reinforcement

1970 ◽  
Vol 21 (5) ◽  
pp. 276-278 ◽  
Author(s):  
Lawrence Weinstein
Keyword(s):  
Partial Reinforcement ◽  
Contrast Effects ◽  
Incentive Contrast

Incentive contrast effects regulate responding to a flavor presented in compound with a saccharin unconditioned stimulus in rats.

2016 ◽  
Vol 42 (3) ◽  
pp. 233-245
Author(s):  
Nathan M. Holmes ◽  
Kate Hutton-Bedbrook ◽  
Justine Fam ◽  
R. Frederick Westbrook
Keyword(s):  
Unconditioned Stimulus ◽  
Contrast Effects ◽  
Incentive Contrast
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