How does body mass influence inhibitory control? Event-related potentials evidence across the full BMI spectrum.

Sonia Sistiaga, Clémence Dousset, Anaïs Ingels, Hendrik Kajosch, Salvatore Campanella

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Article in Experimental brain research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Sonia SistiagaLaboratory of Medical Psychology and Addiction, ULB Neuroscience Institute, CHU Brugmann, Université Libre de Bruxelles, Place A. Van Gehuchten 4, 1020, Brussels, Belgium. sonia.sistiaga@ulb.be.

Clémence DoussetLaboratory of Medical Psychology and Addiction, ULB Neuroscience Institute, CHU Brugmann, Université Libre de Bruxelles, Place A. Van Gehuchten 4, 1020, Brussels, Belgium.

Anaïs IngelsLaboratory of Medical Psychology and Addiction, ULB Neuroscience Institute, CHU Brugmann, Université Libre de Bruxelles, Place A. Van Gehuchten 4, 1020, Brussels, Belgium.

Hendrik KajoschPsychiatric Department, CHU Brugmann, Brussels, Belgium.

Salvatore CampanellaLaboratory of Medical Psychology and Addiction, ULB Neuroscience Institute, CHU Brugmann, Université Libre de Bruxelles, Place A. Van Gehuchten 4, 1020, Brussels, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Extremes of Body Mass Index (BMI) spectrum have been linked to impaired executive functions, including inhibitory control. While altered neural responses are documented in overweight and obese individuals, less is known about the full BMI spectrum, particularly in underweight adults. This study examined behavioral and neural correlates of reactive inhibition across four BMI groups (underweight, normal-weight, overweight, obese) in 87 young adults (Mage = 22.82, SD = 4.18). Participants performed a Go/NoGo task in neutral and food-related contexts while EEG was recorded. Analyses focused on N2d and P3d components. No behavioral differences emerged between groups. However, P3d amplitudes (but not N2d) showed significant BMI-related modulation (F(3,83) = 2.76, p = 0.047), driven by larger amplitudes in overweight participants compared to underweight and normal-weight individuals. Curve estimation analysis revealed a significant quadratic relationship between BMI and P3d amplitude (R

Indexed as

Body Mass IndexEvoked PotentialsExecutive FunctionInhibition, PsychologicalObesityOverweightPsychomotor PerformanceThinnessAdultElectroencephalographyFemaleHumansMaleYoung AdultBody mass indexEvent-related potentialsGo/NoGo taskResponse inhibition

Identifiers

PMID41989477

DOI10.1007/s00221-026-07292-z

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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 Socratic graph.