Patients lacking sustainable long-term weight loss after gastric bypass surgery show signs of decreased inhibitory control of prepotent responses

PloS One
Pleunie S HogenkampHelgi B Schiöth

Abstract

A considerable number of bariatric patients report poor long-term weight loss after Roux-en-Y gastric bypass (RYGB) surgery. One possibility for an underlying cause is an impairment of cognitive control that impedes this patient group's dietary efforts. To investigate if patients having either poor or good weight loss response, ~12 years after RYGB-surgery, differ in their ability to inhibit prepotent responses when processing food cues during attentional operations-as measure of cognitive control. In terms of weight loss following RYGB-surgery, 15 'poor responders' and 15 'good responders', matched for gender, age, education, preoperative body mass index, and years since surgery, were administered two tasks that measure sustained attention and response control: a go/no-go task and a Stroop interference task; both of which are associated with maladaptive eating behaviours. The poor responders (vs. good responders) needed significantly more time when conducting a go/no-go task (603±134 vs. 519±44 msec, p = 0.03), but the number of errors did not differ between groups. When conducting a Stroop interference task, poor responders read fewer inks than good responders (68±16 vs. 85±10 words, p = 0.002). Patients lacking sustainable w...Continue Reading

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Citations

Jun 29, 2016·International Journal of Obesity : Journal of the International Association for the Study of Obesity·P S HogenkampH B Schiöth
Apr 2, 2020·Eating and Weight Disorders : EWD·D YeoS Kaushal
Mar 9, 2021·Obesity Science & Practice·Marissa A GoweyGareth R Dutton
May 25, 2021·Frontiers in Endocrinology·Emanuela BianciardiPaolo Gentileschi

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Methods Mentioned

BETA
gastric bypass

Software Mentioned

Presentation
SPSS

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