Mobile Attention Retraining in Overweight Female Adolescents

Pilot Study of Mobile Attention Training in Overweight Female Adolescents

Background:

People are constantly exposed to unhealthy foods. Some studies of adults show that training attention away from unhealthy foods might reduce overeating. Researchers want to see what happens in the brain when teens train their attention away from food through a program on a smartphone.

Objective:

To study the relationship between eating patterns, body weight, and how the brain reacts to different images.

Eligibility:

Right-handed females ages 12-17 who are overweight (Body Mass Index at or above the 85th percentile for age).

Design:

Participants will have 6 visits over about 8 months.

Visit 1: participants will be screened with:

Height, weight, blood pressure, and waist size measurements

Medical history

Physical exam

Urine sample

DXA scan. Participants will lie on a table while a very small dose of x-rays passes through the body.

Questions about their general health, social and psychological functioning, and eating habits

Parents or guardians of minor participants will answer questions about their child s functioning and demographic data.

Before visits 2-6, participants will not eat or drink for about 12 hours. These visits will include some or all of these procedures:

Blood drawn

MRI scan. Participants will lie on a stretcher that slides in and out of a metal cylinder in a strong magnetic field. A device will be placed over the head.

Meals provided. Participants will fill out rating forms.

Simple thinking tasks

A cone containing magnetic field detectors placed onto the head

Medical history

Physical exam

Urine sample

Participants will be assigned to a 2-week smartphone program that involves looking at pictures. Participants will complete short tasks and answer some questions about their eating habits and mood on the smartphone.

Study Overview

Detailed Description

Over 30% of adolescents are overweight and 20% are obese, but the mechanisms that produce excessive weight gain in youth remain incompletely elucidated. Some overweight youth appear to have an attention bias (AB: a tendency to attend selectively to stimuli that have acquired salience or meaning) toward highly palatable food that may lead to overeating. AB involves distinct cognitive processes, (1) unconscious reactions (UCR), reflecting initial attention capture evoked by salient stimuli, and (2) continued attention deployment (AD) to stimuli relevant to current goals. These rapidly evolving processes are associated with unique neurocircuitry best measured using high spatial resolution and temporal sensitivity. Magnetoencephalography (MEG) is a novel neuroimaging technology that has both excellent temporal and good spatial resolution, thus is uniquely and ideally suited to study neurocognitive mechanisms of AB. Reducing AB to palatable foods may help some overweight youth curb their consumption of energy-dense options. Attention retraining (AR) programs can be used to reduce AB and have been effective in reducing AB to unhealthy food in adults. Although most AR studies involve computers in the laboratory, using smartphones in the natural environment may be a particularly effective method to deliver AR to adolescents and measure AB using ecological momentary assessment. The first aim of the proposed study is to investigate, using MEG, the impact of a 2-week smartphone AR program on neural responses to food cues in overweight adolescent (12-17 y/o) girls with and without loss of control (LOC) eating, defined as a subjective experience of a lack of control over what or how much one is eating. LOC is a distinct eating behavior phenotype in youth that is a risk factor for excess weight gain and disordered eating, and is much more prevalent among girls (vs. boys). Overweight youth who report LOC may be particularly susceptible to AB. Additionally, adults with LOC demonstrate AB toward socially threatening cues, such as angry or disapproving faces, and the AB to social threat may be relevant to the relationship between AB to food and overweight. The second goal is to examine the effect of the 2-week AR program on AB, food intake, and body composition. An exploratory aim is to examine whether AB to socially threatening cues, moderates the effects of this novel intervention on AB to food cues, food intake, and body composition. The proposed study is innovative because no study to date has examined neurocircuitry of ABs to food using MEG, nor examined the impact of AR delivered in the natural environment on neurocircuitry of AB in a group of youth prone to AB. These studies may help further characterize phenomenology of distinct obesity subtypes and may potentially identify an approach that could prevent undue weight gain in adolescent girls at risk for obesity.

Study Type

Interventional

Enrollment (Actual)

82

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Maryland
      • Bethesda, Maryland, United States, 20892
        • National Institutes of Health Clinical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years to 21 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Description

  • INCLUSION CRITERIA:

Volunteers will qualify if they meet the following criteria:

  1. Age between 12 and 17 years (at the start of the study).
  2. Female sex.
  3. BMI at or above the 85th percentile for age and sex according to the Centers for Disease Control US Standards (101).
  4. Right handedness.

    LOC sample only:

  5. Greater than or equal to 1 episodes of LOC eating during the past month prior to assessment, assessed using a clinical diagnostic interview for eating disorders.

    No-LOC sample only:

  6. No episodes of LOC eating during the past month prior to assessment, assessed using a clinical diagnostic interview for eating disorders.

EXCLUSION CRITERIA:

Individuals will be excluded (and provided treatment referrals as needed) for the following reasons:

  1. An obesity-related health comorbidity requiring medical treatment, such as hypertension (defined by age-, sex-, and height-specific standards) or fasting hyperglycemia consistent with diabetes.
  2. Presence of other major illnesses: renal, hepatic, gastrointestinal, most endocrinologic (e.g., Cushing syndrome, untreated hyper- or hypothyroidism), hematological problems or pulmonary disorders (other than asthma not requiring continuous medication). Nonserious

    medical illnesses, such as seasonal allergies, will be reviewed on a case-by-case basis.

  3. Regular use of any medication known to affect body weight or eating behavior (e.g., stimulants prescribed for attention deficit hyperactivity disorder, or ADHD). Medication use for non-serious conditions (e.g., acne) will be considered on a case-by-case basis.
  4. Current pregnancy or a history of pregnancy.
  5. A significant reduction in weight during the past three months, for any reason, exceeding 5% of body weight.
  6. Presence in the child of any significant, full-threshold psychiatric disorder based on DSM criteria (102), such as schizophrenia, bipolar disorder, alcohol or substance abuse, anorexia or bulimia nervosa, or any other disorder that, in the opinion of the investigators, would impede competence or compliance or possibly hinder completion of the study. These individuals will not be permitted to enroll in the current study and will be referred for treatment. Individuals who present with other psychiatric disorders, including subthreshold psychiatric disorders, will be permitted to enroll in the study. If, based on the opinion of the investigators, a participant requires treatment for his/her psychiatric symptoms, the individual will be referred for treatment. Participants who develop any psychiatric disorder or significant psychiatric symptoms at any follow-up assessment during the study will be excluded and be provided with treatment referrals.
  7. Current and regular substance use, including the use of alcohol and/or tobacco products (including e-cigarettes).
  8. A history of significant or recent brain injury that may considerably influence performance (i.e., any history of loss of consciousness greater than or equal to 30 minutes associated with a head injury, any history of memory loss or hospitalization associated with a head injury, or greater than or equal to 2 concussions within last year).
  9. Current involvement in a weight loss program, participating in psychotherapy aimed at weight loss or treatment of eating behavior (e.g., binge eating).
  10. All parents/guardians will be asked to indicate if their child has any food allergies. To be conservative, children who report allergies to gluten, nuts, dairy, fruit, or any other item in the array, will be excluded from the test meal portion of the study.
  11. A condition under which MEG is contradicted (e.g., metal in the body, pregnancy, claustrophobia, history of significant neurological insult or injury).
  12. Non-English speaking participants will be excluded from the study as they may be unable to complete questionnaires and follow the instructions which are only provided in English.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: AB Retraining
Active treatment - the probe always replaces the neutral picture. There is a perfect correlation between picture type and probe location.
Attention retraining program on smartphone where the probe always replaces the neutral picture. There is a perfect correlation between picture type and probe location.
Sham Comparator: Control sham
Sham Comparator program - the probe randomly replaces the neutral or food picture. There is no correlation between picture type and probe location
Sham Comparator "training" where the probe randomly replaces the neutral or food pictures. There is no correlation between picture type and probe location

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in Food-cue Visual Probe Task Attention Bias (AB) Reaction Time
Time Frame: 2-weeks
AB was obtained for each stimulus pairing (High-Palatability Food [HPF] minus Non-Food [NF] image, Low-Palatability Food [LPF] minus NF image, HPF minus LPF image). Trials where the probe appeared behind the more food-salient cue (e.g., a HPF image, or LPF vs NF image) were considered congruent trials. Trials where the probe appeared behind the less salient cue (e.g., NF image, or LPF image when the other image was a HPF image) were considered incongruent trials. The average reaction time during incongruent trials was subtracted from reaction time during during congruent trials. Positive scores represent a quicker reaction time for (and bias towards) the more palatable stimulus, and negative scores represent a slower reaction time for (and bias away from) the more palatable stimulus. A difference score of 0 represents no bias towards or away from the more palatable stimulus. Only trials with correct responses for the direction of the probe were included in computations.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudate Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power at the caudate left hemisphere during attention capture (0-250ms following stimulus). Oscillatory power was normalized as per NeuroImage 39 (2008) pp 1788-1802, by estimating noise power as ρθ = WθTΣWθ (where Wθ is a (M × 1) column vector of weighting parameters that are tuned specifically to the location and orientation represented by θ, Σ represents the noise covariance matrix and ρθ is the beamformer-projected sensor noise power at the location and orientation θ). Within each stimuli-pairing and attention phase, oscillatory power during the incongruent trials was divided by oscillatory power during the congruent trials, then log transformed. Given a ratio was used, the oscillator power outcomes are unitless. Change in power (post-intervention minus pre-intervention) was calculated. Positive changes represent an increase in oscillatory power from pre- to post intervention.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudate Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudate right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pallidum Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pallidum left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pallidum Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pallidum right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Putamen Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the putamen left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Putamen Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the putamen right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Anterior Cingulate Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal anterior cingulate cortex left hemisphere - during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Anterior Cingulate Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal anterior cingulate cortex right hemisphere - during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Anterior Cingulate Cortex Left Hemisphere - During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral anterior cingulate cortex left hemisphere - during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Anterior Cingulate Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral anterior cingulate cortex right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Lateral Orbitofrontal Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Neural activity during a food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the lateral orbitofrontal cortex left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Lateral Orbitofrontal Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the lateral orbitofrontal cortex right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Medial Orbitofrontal Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the medial orbitofrontal cortex left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Medial Orbitofrontal Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the medial orbitofrontal cortex right hemisphere during attention capture (0-250ms following stimulus).The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal dorsolateral prefrontal cortex left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal dorsolateral prefrontal cortex right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral dorsolateral prefrontal cortex left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral dorsolateral prefrontal cortex right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Superior Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the superior dorsolateral prefrontal cortex left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Superior Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the superior dorsolateral prefrontal cortex right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Opercularis Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars opercularis left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Opercularis Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars opercularis right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Orbitalis Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars orbitalis left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Orbitalis Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars orbitalis right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Triangularis Left Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars triangularis left hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Triangularis Right Hemisphere During Attention Capture (0-250ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars triangularis right hemisphere during attention capture (0-250ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudate Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the the caudate left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudate Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudate right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pallidum Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pallidum left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pallidum Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pallidum right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Putamen Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the putamen left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Putamen Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the putamen right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Anterior Cingulate Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal anterior cingulate cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Anterior Cingulate Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal anterior cingulate cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Anterior Cingulate Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral anterior cingulate cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Anterior Cingulate Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral anterior cingulate cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Lateral Orbitofrontal Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the lateral orbitofrontal cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Lateral Orbitofrontal Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the lateral orbitofrontal cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Medial Orbitofrontal Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the medial orbitofrontal cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Medial Orbitofrontal Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the medial orbitofrontal cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal dorsolateral prefrontal cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Caudal Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the caudal dorsolateral prefrontal cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral dorsolateral prefrontal cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Rostral Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the rostral dorsolateral prefrontal cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Superior Dorsolateral Prefrontal Cortex Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the superior dorsolateral prefrontal cortex left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Superior Dorsolateral Prefrontal Cortex Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the superior dorsolateral prefrontal cortex right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Opercularis Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars opercularis left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Opercularis Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars opercularis right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Orbitalis Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars orbitalis left hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Orbitalis Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars orbitalis right hemisphere during attention deployment (250-500ms following stimulus).The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Triangularis Left Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars triangularis left hemisphere during attention deployment (250-500ms following stimulus).The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks
Change in Beta Band (13-35 Hz) Oscillatory Power During Food-cue Visual Probe Attention Bias Task in the Pars Triangularis Right Hemisphere During Attention Deployment (250-500ms Following Stimulus)
Time Frame: 2-weeks
Change in beta band (13-35 Hz) oscillatory power during food-cue visual probe attention bias task completed at the baseline laboratory visit vs. post-EMA intervention visit (conducted 2 weeks after the baseline visit) at the pars triangularis right hemisphere during attention deployment (250-500ms following stimulus). The same analysis procedure was followed as described in detail for the first primary outcome.
2-weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Frequency of Loss-of-control Eating Episodes
Time Frame: 2-weeks
Frequency of self-reported loss-of-control eating episodes measured via the Eating Disorder Examination Interview at the baseline visit and post-EMA intervention visit (conducted 2 weeks after the baseline visit).
2-weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jack A Yanovski, M.D., Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 10, 2017

Primary Completion (Actual)

June 8, 2023

Study Completion (Actual)

November 13, 2024

Study Registration Dates

First Submitted

November 29, 2016

First Submitted That Met QC Criteria

November 29, 2016

First Posted (Estimated)

November 30, 2016

Study Record Updates

Last Update Posted (Actual)

May 31, 2025

Last Update Submitted That Met QC Criteria

May 20, 2025

Last Verified

May 1, 2025

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

.All IPD that underlie results in a publication will be shared.

IPD Sharing Time Frame

NIH subject data will become available starting 6 months after publication of a results paper and will be available from the NIH site for 2 years.

IPD Sharing Access Criteria

NIH data with personal identifiers removed will be shared upon reasonable request to the PI, who will review requests. A data sharing agreement will be required to be negotiated with NICHD before sharing takes place.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Obesity

Clinical Trials on Attention Bias Retraining

Subscribe