Executive Function-Related Improvements on a Commercial CBT-Based Weight Management Intervention: Pilot Randomized...

Area of Science:

• Neuroscience
• Psychology
• Obesity Research

Background:

• Executive functioning is crucial for weight management behavior change.
• Cognitive behavioral therapy (CBT) is a first-line obesity treatment, but its impact on executive functioning is unclear.
• Understanding how weight management interventions affect executive function is important for sustained success.

Purpose of the Study:

• To investigate if a CBT-based weight management intervention improves executive functioning and related brain activity in individuals with overweight or obesity.
• To compare the effects of a CBT-based intervention versus educational newsletters on executive function markers and weight loss.

Main Methods:

• Pilot randomized controlled trial with participants randomized to a CBT-based program (Noom Weight) or educational newsletters.
• Electroencephalography (EEG) measured brain activity during executive function tasks (Flanker, Stroop, N-back) at baseline and 4 months.
• Weight change was monitored throughout the 4-month intervention period.

Main Results:

• The CBT intervention group showed improved accuracy on Flanker and Stroop tasks over 4 months compared to the control group.
• Neural markers of executive function also showed improvement in the intervention group.
• The intervention group achieved significantly greater weight loss (-7.1 lbs) than the control group (+1.0 lbs).

Conclusions:

• A multicomponent CBT-based weight management intervention can help sustain executive function over 4 months.
• This study provides preliminary evidence supporting the role of CBT in enhancing cognitive functions relevant to weight management.
• The findings suggest that CBT-based interventions may offer dual benefits for weight loss and cognitive function in individuals with obesity.