Brief report

Evidence for the speed-value trade-off: Human and monkey decision making is magnitude sensitive

Angelo Pirrone, Habiba Azab, Benjamin Y. Hayden, Tom Stafford, James A.R. Marshall

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Complex natural systems from brains to bee swarms have evolved to make adaptive multifactorial decisions. Recent theoretical and empirical work suggests that many evolved systems may take advantage of common motifs across multiple domains. We are particularly interested in value sensitivity (i.e., sensitivity to the magnitude or intensity of the stimuli or reward under consideration) as a mechanism to resolve deadlocks adaptively. This mechanism favors long-term reward maximization over accuracy in a simple manner, because it avoids costly delays associated with ambivalence between similar options; speed-value trade-offs have been proposed to be evolutionarily advantageous for many kinds of decision. A key prediction of the value-sensitivity hypothesis is that choices between equally valued options will proceed faster when the options have a high value than when they have a low value. However, value sensitivity is not part of idealized choice models such as diffusion to bound. Here, we examine 2 different choice behaviors in 2 different species, perceptual decisions in humans and economic choices in rhesus monkeys, to test this hypothesis. We observe the same value sensitivity in both human perceptual decisions and monkey value-based decisions. These results endorse the idea that neural decision systems make use of the same basic principle of value sensitivity in order to resolve costly deadlocks and thus improve long-term reward intake.

Original languageEnglish (US)
Pages (from-to)129-142
Number of pages14
JournalDecision
Volume5
Issue number2
DOIs
StatePublished - Apr 1 2018

Fingerprint

Reward
Haplorhini
Decision Making
Trade-offs
Choice Behavior
Bees
Deadlock
Macaca mulatta
Resolve
Economics
Choice Models
Decision System
Brain
Swarm
Evidence
Human
Decision making
Prediction

Keywords

  • Equal alternatives
  • Human decision making
  • Monkey decision making
  • Value sensitivity

PubMed: MeSH publication types

  • Journal Article

Cite this

Brief report : Evidence for the speed-value trade-off: Human and monkey decision making is magnitude sensitive. / Pirrone, Angelo; Azab, Habiba; Hayden, Benjamin Y.; Stafford, Tom; Marshall, James A.R.

In: Decision, Vol. 5, No. 2, 01.04.2018, p. 129-142.

Research output: Contribution to journalArticle

Pirrone, Angelo ; Azab, Habiba ; Hayden, Benjamin Y. ; Stafford, Tom ; Marshall, James A.R. / Brief report : Evidence for the speed-value trade-off: Human and monkey decision making is magnitude sensitive. In: Decision. 2018 ; Vol. 5, No. 2. pp. 129-142.
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