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Table 2 Number of food pellets received in either task around the ideal/mathematical indifference point, compared with the "theoretical" food gain (amount of food pellets that rats could have eaten if they behaved just as their siblings in the other protocol did, n = 8).

From: Delay aversion but preference for large and rare rewards in two choice tasks: implications for the measurement of self-control parameters

  

ID task

PD task

Delay (s)

Odds

Actual SS shift

 

Potential LL preference

Actual LL preference

 

Potential SS shift

45

3

83.3 ± 2.5

vs

123.3 ± 5.9 *

69.0 ± 6.4

vs

61.0 ± 5.5

60

4

67.9 ± 1.6

vs

100.8 ± 6.6 *

54.5 ± 3.8

vs

55.8 ± 4.3

75

5

58.3 ± 1.8

vs

84.2 ± 7.9 *

43.8 ± 3.6

vs

47.8 ± 3.3

  1. In the ID task, it would be economically convenient to keep preferring the LL choice, demonstrating that task contingencies are still before the indifference. In the PD task, either choice is substantially indifferent from the economical viewpoint, demonstrating that task contingencies are under conditions of quasi-indifference. * p < 0.05 in post-hoc comparisons drawn between the "actual" and the "potential" food amounts.
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BMC Neuroscience

ISSN: 1471-2202

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