Brain scans reveal why some kids overeat

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Children : * Children must be of good health (with the exception of obesity being allowed) based on parental self-report. * Children should have no learning disabilities or developmental delays (e.g., ADHD, Autism, dyslexia) * Children should speak English fluently. * Children should not be on any medications known to influence body weight, taste, food intake, behavior, or blood flow, not be claustrophobic. * Children should between the ages of 7-9 years-old at enrollment. * Children must have a BMI-for-age % \< 85 or ≥ 95 to be enrolled. * The biological mother must have a BMI between 18.5 - 25.0 kg/m2 or a BMI ≥ 30.0 kg/m2. The parent primarily in charge of feeding must be able to accompany children to the visits. Parents : * The biological mother must have a BMI between 18.5 - 25.0 kg/m2 or a BMI ≥ 30.0 kg/m2. The parent primarily in charge of feeding must be able to accompany children to the visits. * The parent who has the most knowledge of the child's eating behavior, media access, sleep and behavior must be available to attend the visits with their child. This would be decided among the parents. Exclusion Criteria: Children : * They are not within the age requirements (\< 7 years-old or \> 9 years-old) at baseline. * They are taking cold or allergy medication, or other medications known to influence cognitive function, taste, appetite, or blood flow. * They are red/green colorblind. * They do not speak English fluently. * They report being claustrophobic, or if they have any of the following: a learning disability, ADD/ADHD, language delays, autism, dyslexia, a pre-existing medical condition such as type I or type II diabetes, rheumatoid arthritis, Cushing's syndrome, Down's syndrome, food allergies, severe lactose intolerance, Prader-Willi syndrome, HIV, cancer, renal failure, or cerebral palsy. * They have tattoos, permanent makeup, dental ware, pacemakers, or metal implants that would preclude safe completion of the MRI. * They have received an X-ray in the previous month. * Their BMI-for-age percentile is between 85-95th Parents : * The biological mother has a body mass index \< 18.5 kg/m2 or between 25-29.9 kg/m2. * The primary parent in charge of making feeding decisions is unable to attend the study visits. * The family reports plans to move away from the area in the next year.