Evidence map›Paper›PMID 34437533›Full record

ArticlePLoS biology2021

Olfactory perceptual decision-making is biased by motivational state.

Laura K Shanahan, Surabhi Bhutani, Thorsten Kahnt

Abstract read
In one paragraph

Article in PLoS biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Motivation biases behavior but not perception.Communications psychology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Characterizing Olfactory Brain Responses in Young Infants.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. Structural Connectivity between Olfactory Tubercle and Ventrolateral Periaqueductal Gray Implicated in Human Feeding Behavior.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. On the state-dependent nature of odor perception.Frontiers in neuroscience · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Laura K ShanahanDepartment of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America.ORCID 0000-0001-6050-425X
Surabhi BhutaniDepartment of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America.
Thorsten KahntDepartment of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America.ORCID 0000-0002-3575-2670

Funding

TRAINING GRANT IN SLEEP RESEARCHT32HL007909 · NHLBI · NORTHWESTERN UNIVERSITY · PI FRED W TUREK, Phyllis C. Zee · 1998 to 2026
$9.2M
Principles of olfactory reward processing in the human brainR01DC015426 · NIDCD · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ZELANO, CHRISTINA MARIA · 2016 to 2025
$4.4M
Olfactory contributions to sleep-dependent food craving and calorie intakeR21DK118503 · NIDDK · NORTHWESTERN UNIVERSITY AT CHICAGO · PI KAHNT, THORSTEN · 2019 to 2020
$442k
NHLBI NIH HHS T32 HL007909NIDCD NIH HHS R01 DC015426NIDDK NIH HHS R21 DK118503
6 · The paper itself

Abstract

Growing evidence suggests that internal factors influence how we perceive the world. However, it remains unclear whether and how motivational states, such as hunger and satiety, regulate perceptual decision-making in the olfactory domain. Here, we developed a novel behavioral task involving mixtures of food and nonfood odors (i.e., cinnamon bun and cedar; pizza and pine) to assess olfactory perceptual decision-making in humans. Participants completed the task before and after eating a meal that matched one of the food odors, allowing us to compare perception of meal-matched and non-matched odors across fasted and sated states. We found that participants were less likely to perceive meal-matched, but not non-matched, odors as food dominant in the sated state. Moreover, functional magnetic resonance imaging (fMRI) data revealed neural changes that paralleled these behavioral effects. Namely, odor-evoked fMRI responses in olfactory/limbic brain regions were altered after the meal, such that neural patterns for meal-matched odor pairs were less discriminable and less food-like than their non-matched counterparts. Our findings demonstrate that olfactory perceptual decision-making is biased by motivational state in an odor-specific manner and highlight a potential brain mechanism underlying this adaptive behavior.

Indexed as

AdolescentAdultBrainDecision MakingFemaleFood DeprivationHealthy VolunteersHumansMagnetic Resonance ImagingMaleOlfactory PerceptionYoung Adult

Identifiers

PMID34437533
PMCPMC8389475

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.