期刊
APPETITE
卷 112, 期 -, 页码 188-195出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.appet.2017.01.032
关键词
Overweight; Obesity; Neurofeedback; Real-time functional magnetic resonance; imaging; Dorsolateral prefrontal cortex; Ventromedial prefrontal cortex
资金
- Deutsche Forschungsgemeinschaft [DFG BI 195/69-1 Koselleck]
- Italian Ministry of Health progetto corrente [RC 2614726]
- Eva and Horst Kohler Stiftung
- Baden-Wurttemberg-Stiftung (GRUENS, ROB-1)
- German Federal Ministry of Education and Research (BMBF EMOIO) [16SV7196]
- Volkswagen Stiftung [87819]
- Helmholtz Alliance Imaging and Curing Environmental Metabolic Diseases (ICEMED), through the Initiative and Networking Fund of the Helmholtz Association
- BMBF [v01GI0925]
- [602186]
Obese subjects who achieve weight loss show increased functional connectivity between dorsolateral prefrontal cortex (dlPFC) and ventromedial prefrontal cortex (vmPFC), key areas of executive control and reward processing. We investigated the potential of real-time functional magnetic resonance imaging (rt-fMRI) neurofeedback training to achieve healthier food choices by enhancing self-control of the interplay between these brain areas. We trained eight male individuals with overweight or obesity (age: 31.8 +/- 4.4 years, BMI: 29.4 +/- 1.4 kg/m(2)) to up-regulate functional connectivity between the dlPFC and the vmPFC by means of a four-day rt-fMRI neurofeedback protocol including, on each day, three training runs comprised of six up-regulation and six passive viewing trials. During the up-regulation runs of the four training days, participants successfully learned to increase functional connectivity between dlPFC and vmPFC. In addition, a trend towards less high-calorie food choices emerged from before to after training, which however was associated with a trend towards increased covertly assessed snack intake. Findings of this proof-of-concept study indicate that overweight and obese participants can increase functional connectivity between brain areas that orchestrate the top-down control of appetite for high-calorie foods. Neurofeedback training might therefore be a useful tool in achieving and maintaining weight loss. (C) 2017 Elsevier Ltd. All rights reserved.
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