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  Loss of lateral prefrontal cortex control in food-directed attention and goal-directed food choice in obesity

Janssen, L., Duif, I., van Loon, I., Wegman, J., de Vries, J. H. M., Cools, R., et al. (2017). Loss of lateral prefrontal cortex control in food-directed attention and goal-directed food choice in obesity. NeuroImage, 146, 148-156. doi:10.1016/j.neuroimage.2016.11.015.

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Janssen, Lieneke1, Autor           
Duif, Iris1, Autor
van Loon, Ilke1, Autor
Wegman, Joost1, Autor
de Vries, Jeanne H. M.1, Autor
Cools, Roshan1, Autor
Aarts, Esther1, Autor
Affiliations:
1External Organizations, ou_persistent22              

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Schlagwörter: Cognitive control; Choice; Attention; Obesity; fMRI
 Zusammenfassung: Loss of lateral prefrontal cortex (lPFC)-mediated attentional control may explain the automatic tendency to eat in the face of food. Here, we investigate the neurocognitive mechanism underlying attentional bias to food words and its association with obesity using a food Stroop task. We tested 76 healthy human subjects with a wide body mass index (BMI) range (19–35 kg/m2) using fMRI. As a measure of obesity we calculated individual obesity scores based on BMI, waist circumference and waist-to-hip ratio using principal component analyses. To investigate the automatic tendency to overeat directly, the same subjects performed a separate behavioral outcome devaluation task measuring the degree of goal-directed versus automatic food choices. We observed that increased obesity scores were associated with diminished lPFC responses during food attentional bias. This was accompanied by decreased goal-directed control of food choices following outcome devaluation. Together these findings suggest that deficient control of both food-directed attention and choice may contribute to obesity, particularly given our obesogenic environment with food cues everywhere, and the choice to ignore or indulge despite satiety.

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Sprache(n): eng - English
 Datum: 2016-06-062016-11-082016-11-112017-02-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1016/j.neuroimage.2016.11.015
PMID: 27845255
Anderer: Epub 2016
 Art des Abschluß: -

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Projektname : -
Grant ID : 016.135.023
Förderprogramm : VENI grant
Förderorganisation : Netherlands Organisation for Scientific Research (NWO)
Projektname : -
Grant ID : -
Förderprogramm : -
Förderorganisation : AXA Research Fund
Projektname : -
Grant ID : 220020328
Förderprogramm : -
Förderorganisation : James S. McDonnell Foundation
Projektname : -
Grant ID : 016.150.064
Förderprogramm : VICI grant
Förderorganisation : Netherlands Organisation for Scientific Research (NWO)

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Titel: NeuroImage
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Orlando, FL : Academic Press
Seiten: - Band / Heft: 146 Artikelnummer: - Start- / Endseite: 148 - 156 Identifikator: ISSN: 1053-8119
CoNE: https://pure.mpg.de/cone/journals/resource/954922650166