Reliability of neural food cue-reactivity in participants with obesity undergoing bariatric surgery: a 26-week longitudinal fMRI study
Obesity is highly prevalent worldwide and results in a high disease burden. The efforts to monitor and predict treatment outcome in participants with obesity using functional magnetic resonance imaging (fMRI) depends on the reliability of the investigated task-fMRI brain activation. To date, no stud...
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| In: |
European archives of psychiatry and clinical neuroscience
Year: 2021, Jahrgang: 271, Heft: 5, Pages: 951-962 |
| ISSN: | 1433-8491 |
| DOI: | 10.1007/s00406-020-01218-8 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/s00406-020-01218-8 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/s00406-020-01218-8 
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| Verfasserangaben: | Patrick Bach, Martin Grosshans, Anne Koopmann, Peter Kienle, Georgi Vassilev, Mirko Otto, J. Malte Bumb, Falk Kiefer |
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| 245 | 1 | 0 | |a Reliability of neural food cue-reactivity in participants with obesity undergoing bariatric surgery |b a 26-week longitudinal fMRI study |c Patrick Bach, Martin Grosshans, Anne Koopmann, Peter Kienle, Georgi Vassilev, Mirko Otto, J. Malte Bumb, Falk Kiefer |
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| 520 | |a Obesity is highly prevalent worldwide and results in a high disease burden. The efforts to monitor and predict treatment outcome in participants with obesity using functional magnetic resonance imaging (fMRI) depends on the reliability of the investigated task-fMRI brain activation. To date, no study has investigated whole-brain reliability of neural food cue-reactivity. To close this gap, we analyzed the longitudinal reliability of an established food cue-reactivity task. Longitudinal reliability of neural food-cue-induced brain activation and subjective food craving ratings over three fMRI sessions (T0: 2 weeks before surgery, T1: 8 weeks and T2: 24 weeks after surgery) were investigated in N = 11 participants with obesity. We computed an array of established reliability estimates, including the intraclass correlation (ICC), the Dice and Jaccard coefficients and similarity of brain activation maps. The data indicated good reliability (ICC > 0.6) of subjective food craving ratings over 26 weeks and excellent reliability (ICC > 0.75) of brain activation signals for the contrast of interest (food > neutral) in the caudate, putamen, thalamus, middle cingulum, inferior, middle and superior occipital gyri, and middle and superior temporal gyri and cunei. Using similarity estimates, it was possible to re-identify individuals based on their neural activation maps (73%) with a fading degree of accuracy, when comparing fMRI sessions further apart. The results show excellent reliability of task-fMRI neural brain activation in several brain regions. Current data suggest that fMRI-based measures might indeed be suitable to monitor and predict treatment outcome in participants with obesity undergoing bariatric surgery. | ||
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| 650 | 4 | |a Reliability | |
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