Intact delay discounting but more optimal reward-based decisions in anorexia nervosa during an experiential task
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Aims: Individuals with anorexia nervosa (AN) have an apparent increased capacity to delay gratification and forgo immediate food rewards in their long-term pursuit of thinness. Prior research probed this capacity using delay discounting tasks that assess how rapidly the subjective value of rewards decreases as a function of time until receipt. However, significant effects in AN were mostly subtle or absent using traditional tasks. Here, we tested whether altered delay discounting might be revealed in AN during an experiential gamified task. Methods: Eighty acutely underweight females with AN and pairwise age-matched female healthy controls (HC) made binary choices moving an avatar to collect rewards of varying magnitudes and distances. The presence of an overall time limit rendered one choice optimal (i.e. higher cost–benefit ratio) in each trial. We tested group differences in delay/distance discounting and used signal detection theory to determine whether decision patterns were due to inherent preferences (e.g. for immediate rewards) or acuity to detect optimal choices. Results: No group differences in delay discounting parameters were found, but participants with AN favored smaller, closer rewards when this was the optimal strategy. This was neither related to an a priori bias toward immediate/delayed rewards nor enhanced choice acuity. Conclusion: Even in a more realistic experiential task, individuals with AN did not exhibit reduced delay discounting. Instead, because choosing the closer option more frequently required more decisions overall, our findings may reflect increased task engagement and align with the notion of greater willingness to exert effort for reward in AN.
Details
| Original language | English |
|---|---|
| Journal | Psychiatry and Clinical Neurosciences |
| Publication status | E-pub ahead of print - 18 Feb 2026 |
| Peer-reviewed | Yes |
External IDs
| PubMed | 41704200 |
|---|---|
| ORCID | /0000-0002-4408-6016/work/208795082 |
| ORCID | /0000-0002-2531-4175/work/208795085 |
| ORCID | /0000-0003-2132-4445/work/208795962 |
| ORCID | /0000-0002-2864-5578/work/208795969 |
| ORCID | /0009-0007-9140-4068/work/208796036 |
| ORCID | /0000-0002-5112-405X/work/208796086 |
Keywords
Sustainable Development Goals
ASJC Scopus subject areas
Keywords
- anorexia nervosa, decision-making, delay discounting, experiential task, self-control