Hunger increases delay discounting of food and non-food rewards

Jordan Skrynka, Benjamin Vincent (Lead / Corresponding author)

Research output: Contribution to journalArticle

21 Downloads (Pure)

Abstract

How do our valuation systems change to homeostatically correct undesirable psychological or physiological states, such as those caused by hunger? There is evidence that hunger increases discounting for food rewards, biasing choices towards smaller but sooner food reward over larger but later reward. However, it is not understood how hunger modulates delay discounting for non-food items. We outline and quantitatively evaluate 6 possible models of how our valuation systems modulate discounting of various commodities in the face of the undesirable state of being hungry. With a repeated-measures design, an experimental hunger manipulation, and quantitative modelling, we find strong evidence that hunger causes large increases in delay discounting for food, with an approximately 25% spillover effect to non-food commodities. The results provide evidence that in the face of hunger, our valuation systems increase discounting for commodities which cannot achieve a desired state change as well as for those commodities that can. Given that strong delay discounting can cause negative outcomes in many non-food (consumer, investment, medical, or inter-personal) domains, the present findings suggest caution may be necessary when making decisions involving non-food outcomes whilst hungry.
Original languageEnglish
Number of pages9
JournalPsychonomic Bulletin & Review
Early online date13 Sep 2019
DOIs
Publication statusE-pub ahead of print - 13 Sep 2019

Fingerprint

Hunger
Reward
Food
Delay Discounting
Decision Making
Research Design
Psychology
Commodities

Keywords

  • hunger
  • valuation
  • delay discounting
  • inter-temporal choice

Cite this

@article{a25d6e8a18214b73b21549956605b13e,
title = "Hunger increases delay discounting of food and non-food rewards",
abstract = "How do our valuation systems change to homeostatically correct undesirable psychological or physiological states, such as those caused by hunger? There is evidence that hunger increases discounting for food rewards, biasing choices towards smaller but sooner food reward over larger but later reward. However, it is not understood how hunger modulates delay discounting for non-food items. We outline and quantitatively evaluate 6 possible models of how our valuation systems modulate discounting of various commodities in the face of the undesirable state of being hungry. With a repeated-measures design, an experimental hunger manipulation, and quantitative modelling, we find strong evidence that hunger causes large increases in delay discounting for food, with an approximately 25{\%} spillover effect to non-food commodities. The results provide evidence that in the face of hunger, our valuation systems increase discounting for commodities which cannot achieve a desired state change as well as for those commodities that can. Given that strong delay discounting can cause negative outcomes in many non-food (consumer, investment, medical, or inter-personal) domains, the present findings suggest caution may be necessary when making decisions involving non-food outcomes whilst hungry.",
keywords = "hunger, valuation, delay discounting, inter-temporal choice",
author = "Jordan Skrynka and Benjamin Vincent",
year = "2019",
month = "9",
day = "13",
doi = "10.3758/s13423-019-01655-0",
language = "English",
journal = "Psychonomic Bulletin & Review",
issn = "1069-9384",
publisher = "Springer Verlag",

}

TY - JOUR

T1 - Hunger increases delay discounting of food and non-food rewards

AU - Skrynka, Jordan

AU - Vincent, Benjamin

PY - 2019/9/13

Y1 - 2019/9/13

N2 - How do our valuation systems change to homeostatically correct undesirable psychological or physiological states, such as those caused by hunger? There is evidence that hunger increases discounting for food rewards, biasing choices towards smaller but sooner food reward over larger but later reward. However, it is not understood how hunger modulates delay discounting for non-food items. We outline and quantitatively evaluate 6 possible models of how our valuation systems modulate discounting of various commodities in the face of the undesirable state of being hungry. With a repeated-measures design, an experimental hunger manipulation, and quantitative modelling, we find strong evidence that hunger causes large increases in delay discounting for food, with an approximately 25% spillover effect to non-food commodities. The results provide evidence that in the face of hunger, our valuation systems increase discounting for commodities which cannot achieve a desired state change as well as for those commodities that can. Given that strong delay discounting can cause negative outcomes in many non-food (consumer, investment, medical, or inter-personal) domains, the present findings suggest caution may be necessary when making decisions involving non-food outcomes whilst hungry.

AB - How do our valuation systems change to homeostatically correct undesirable psychological or physiological states, such as those caused by hunger? There is evidence that hunger increases discounting for food rewards, biasing choices towards smaller but sooner food reward over larger but later reward. However, it is not understood how hunger modulates delay discounting for non-food items. We outline and quantitatively evaluate 6 possible models of how our valuation systems modulate discounting of various commodities in the face of the undesirable state of being hungry. With a repeated-measures design, an experimental hunger manipulation, and quantitative modelling, we find strong evidence that hunger causes large increases in delay discounting for food, with an approximately 25% spillover effect to non-food commodities. The results provide evidence that in the face of hunger, our valuation systems increase discounting for commodities which cannot achieve a desired state change as well as for those commodities that can. Given that strong delay discounting can cause negative outcomes in many non-food (consumer, investment, medical, or inter-personal) domains, the present findings suggest caution may be necessary when making decisions involving non-food outcomes whilst hungry.

KW - hunger

KW - valuation

KW - delay discounting

KW - inter-temporal choice

U2 - 10.3758/s13423-019-01655-0

DO - 10.3758/s13423-019-01655-0

M3 - Article

JO - Psychonomic Bulletin & Review

JF - Psychonomic Bulletin & Review

SN - 1069-9384

ER -