Evidence map›Paper›PMID 42731837›Full record

Observational studyBMJ open2026

Brain and behavioural responses to food viewing in women during pregnancy and their relationship with metabolic health: study protocol for the FOODY Play Study - a prospective observational study.

Mariana Treviño Montemayor, Amel Hamam-Mechkour, Jennifer J Eisler, Micah M Murray, Lucas Spierer, Sybille Schenk, Ryan J Halter, Ulrike Toepel, Antje Horsch, Chrysa Retsa and 3 more

Abstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in BMJ open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

13 authors.

Mariana Treviño MontemayorObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.ORCID http://orcid.org/0009-0008-2673-3938
Amel Hamam-MechkourObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Jennifer J EislerObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Micah M MurrayThe Radiology Department, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Lucas SpiererLaboratory for Neurorehabilitation Science, Medicine Section, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland.
Sybille SchenkObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Ryan J HalterDartmouth College Thayer School of Engineering, Hanover, New Hampshire, USA.
Ulrike ToepelFaculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
Antje HorschInstitute of Higher Education and Research in Healthcare, University of Lausanne, Lausanne, Switzerland.ORCID http://orcid.org/0000-0002-9950-9661
Chrysa RetsaThe Radiology Department, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Amar ArhabObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.ORCID http://orcid.org/0000-0002-8938-5095
Dan Yedu QuansahObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.ORCID http://orcid.org/0000-0002-3091-9400
Jardena J PuderObstetric Service, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland Jardena.Puder@chuv.ch.ORCID http://orcid.org/0000-0002-0460-7614

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDuring pregnancy, physiological and psychological factors influence eating behaviour and food preferences. Food cravings are common in pregnancy and contribute to excessive gestational weight gain (GWG). Excessive GWG is present across all body mass index (BMI) categories and is associated with adverse outcomes. Outside of pregnancy, highly palatable food cues activate brain regions involved in reward and attention, which may influence eating behaviour and behavioural responses. However, brain and behavioural responses to food cues across pregnancy, and their association with psychological and metabolic factors, remain poorly understood. This study aims to investigate spatiotemporal brain responses to visual food cues across individuals with different BMI categories and their associations with behavioural, psychological and metabolic outcomes during pregnancy. METHODS AND ANALYSIS: This is a prospective observational cohort study conducted at the Lausanne University Hospital, Switzerland. 94 pregnant individuals (47 healthy normal weight and 47 with overweight/obesity) will be assessed at 12-16 and 31-36 weeks of gestational age from November 2024 to September 2026. Data collected for the primary outcomes include electroencephalography-based brain responses to validated visual food cues varying in fat and carbohydrate content, behavioural responses to the same cues using a gamified smartphone Go/NoGo task. Secondary validated outcomes include heart rate variability (Actiheart), body composition (InBody S10), glycated haemoglobin (Afinion), cardiorespiratory fitness (The Chester step test), snack intake, eating behaviour (Intuitive Eating Scale-2, Three-Factor Eating Questionnaire-Revised), food cravings (Food Craving Questionnaire-state), mood and depressive symptoms (Edinburgh Postnatal Depression Scale). Statistical analyses include group comparisons, longitudinal analyses and regression models adjusted for potential sociodemographic/medical confounders. ETHICS AND DISSEMINATION: All participants will provide written informed consent. The Human Research Ethics Committee of the Canton de Vaud approved the study protocol (CER-VD 2023-01462). Findings will be disseminated through peer-reviewed publications, (inter)national conferences and shared with healthcare professionals and stakeholders to inform strategies for improving maternal health.

Indexed as

BrainFeeding BehaviorFood PreferencesAdultBody Mass IndexCuesElectroencephalographyFemaleGestational Weight GainHumansObesityPregnancyProspective StudiesResearch DesignSwitzerlandElectroencephalographyObesityObservational StudyOverweightPregnancy

Identifiers

PMID42731837
PMCPMC13583829

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.