Within-subject differences in degree of delay discounting as a function of order of presentation of hypothetical cash rewards

Elias Robles-Sotelo, Perla Vargas, Rafael Bejarano

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Procedural variants in estimating delay discounting (DD) have been shown to yield significant differences in estimated degree of DD as well as variations in individual patterns of choice. For example, a recent study found significantly different degrees of DD between groups assessed using either an ascending or descending order of presentation of the immediately available rewards. The purpose of this study was to test for within-subject effects of order of presentation of the immediate rewards in a DD task. In a single session, college students (N = 29) were asked to complete two DD tasks, one with the immediate rewards presented in ascending order and one in descending order. Consistent with previous results, significantly larger mean area under the discounting curve (AUC) was observed when the descending sequence was used compared to the ascending order of presentation; and the correlation between both measurements was moderate. These results suggest that some DD assessment tasks may be sensitive to contextual variables such as order and range of the reward and delay values.

Original languageEnglish (US)
Pages (from-to)260-263
Number of pages4
JournalBehavioural processes
Volume81
Issue number2
DOIs
StatePublished - Jun 2009

Keywords

  • Assessment
  • Delay discounting
  • Framing
  • Impulsiveness
  • Order of presentation

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Behavioral Neuroscience

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