The purpose of this study is to optimize an obesity treatment program targeting overweight 8-12 year old children using "Cue Exposure Training".
The goal of the Cue Exposure program is to train children to resist cues to eat unhealthy foods. Through a series of experimental studies, the investigators will evaluate how many weekly treatment visits there should be, whether children should be exposed to a single food or multiple foods during treatment, whether to use partial reinforcement or not, whether visits should be daily or weekly, and whether the exposures should be in single or multiple contexts. The investigators will be recruiting parent-child dyads in the San Diego community to participate in 8 to 16 weekly or daily treatment sessions either in their home, community center, or our lab, depending on the treatment arm. Parents and children will complete baseline and post-treatment assessments consisting of collecting psychophysiological data, completing laboratory tasks, and completing questionnaires. The investigators will be evaluating which treatment condition reduces overeating (as measured by our laboratory tasks).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
230
Subjects will be exposed to the same set of 4 foods in each cue exposure treatment session.
Subjects will be exposed to a different set of 4 foods in each cue exposure treatment session.
Subjects will take random additional tastes of the food during cue exposure treatment.
Center for Health Eating and Activity Research
La Jolla, California, United States
Change in overeating (Eating in the absence of hunger) from baseline at an average of 3 months and 6 months
Reduce overeating or eating in the absence of hunger in response to food cues. Habituation to food cues.
Time frame: Change from baseline at an average of 3 months and 6 months
Change in child weight
BMI, BMIz
Time frame: Change from baseline at an average of 3 and 6 months
Change in parent weight from baseline at average of 3 and 6 months
Measured by BMI (Body Mass Index)
Time frame: Change from baseline at average of 3 and 6 months
Change in attention to food cues from baseline at average of 3 and 6 months
Reduce attention to food cues, redirect attention to neutral (non-food cues). Measured by computer program measuring response time
Time frame: Change from baseline at average of 3 and 6 months
Change in impulsivity/Inhibition from baseline at average of 3 and 6 months
Reduce impulsive behavior response to both food and non-food cues. Measured by behavioral tasks
Time frame: Change from baseline at average of 3 and 6 months
Change in psychophysiological measures of responsivity to food cues from baseline at average of 3 and 6 months
Salivation/swallowing using EMG (electromyography), skin conductance, heart rate and heart rate variability.
Time frame: Change from baseline at average of 3 and 6 months
Change in level of self-reported cravings in response to palatable food cues from baseline at average of 3 and 6 months
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Subjects will consistently take the same tastes of the food during cue exposure treatment.
Participants will rate their cravings on a scale of 1-10.
Time frame: Change from baseline at average of 3 and 6 months