Value-based decision-making battery: A Bayesian adaptive approach to assess impulsive and risky behavior

  • Shakoor Pooseh
  • Nadine Bernhardt
  • Alvaro Guevara
  • Quentin J. M. Huys
  • Michael N. Smolka
Article

DOI: 10.3758/s13428-017-0866-x

Cite this article as:
Pooseh, S., Bernhardt, N., Guevara, A. et al. Behav Res (2017). doi:10.3758/s13428-017-0866-x

Abstract

Using simple mathematical models of choice behavior, we present a Bayesian adaptive algorithm to assess measures of impulsive and risky decision making. Practically, these measures are characterized by discounting rates and are used to classify individuals or population groups, to distinguish unhealthy behavior, and to predict developmental courses. However, a constant demand for improved tools to assess these constructs remains unanswered. The algorithm is based on trial-by-trial observations. At each step, a choice is made between immediate (certain) and delayed (risky) options. Then the current parameter estimates are updated by the likelihood of observing the choice, and the next offers are provided from the indifference point, so that they will acquire the most informative data based on the current parameter estimates. The procedure continues for a certain number of trials in order to reach a stable estimation. The algorithm is discussed in detail for the delay discounting case, and results from decision making under risk for gains, losses, and mixed prospects are also provided. Simulated experiments using prescribed parameter values were performed to justify the algorithm in terms of the reproducibility of its parameters for individual assessments, and to test the reliability of the estimation procedure in a group-level analysis. The algorithm was implemented as an experimental battery to measure temporal and probability discounting rates together with loss aversion, and was tested on a healthy participant sample.

Keywords

Delay discounting Risk seeking Intertemporal choice Loss aversion Bayesian estimation 

Supplementary material

13428_2017_866_MOESM1_ESM.pdf (197 kb)
Figure S1(PDF 197 kb)
13428_2017_866_MOESM2_ESM.pdf (195 kb)
Figure S2(PDF 194 kb)

Copyright information

© Psychonomic Society, Inc. 2017

Authors and Affiliations

  • Shakoor Pooseh
    • 1
  • Nadine Bernhardt
    • 1
  • Alvaro Guevara
    • 1
    • 2
  • Quentin J. M. Huys
    • 3
    • 4
  • Michael N. Smolka
    • 1
  1. 1.Department of Psychiatry and PsychotherapyTechnische Universität DresdenDresdenGermany
  2. 2.Escuela de MatemáticaUniversidad de Costa RicaCiudad universitaria Rodrigo Facio BrenesCosta Rica
  3. 3.Translational Neuromodeling Unit, Hospital of PsychiatryUniversity of Zürich and Swiss Federal Institute of TechnologyZurichSwitzerland
  4. 4.Psychiatry, Psychosomatics, and PsychotherapyUniversity of ZürichZurichSwitzerland

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