Can a simple EEG replace costly MRI scans for anorexia research?

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

Inclusion Criteria: Healthy Controls * Females ages 11 - 17 years * Healthy body weight between 90 and 110 % average body weight. * Edinburgh Handedness Inventory Revised (EHI-R) LQ\* score \> +200 * English is primary language spoken Restricting Type Anorexia Nervosa * Females ages 11 - 17 years * Diagnostic criteria. Current diagnosis of AN, including being underweight below 17.5 body mass index (BMI, kg/m2), will have a severe fear of weight gain, body image distortion and absence of the menstrual cycle over three consecutive months (if applicable). * First 1-2 weeks in treatment at The University of California San Diego Eating Disorders Center for Treatment and Research or Rady Children's Hospital San Diego Medical Behavioral Unit. * Restricting subtype, that is without binge/purge behaviors * Edinburgh Handedness Inventory Revised (EHI-R) LQ\* score \> +200 * English is primary language spoken Exclusion Criteria: Healthy Controls * Current pregnancy or breast feeding within last 3 months * Illiterate/Blind individuals * First degree relative with current or past eating disorder * Current Medications other than BCP or IUD * Past or present Axis I psychiatric disorder including substance or alcohol use disorder as determined through PI interview and MINI-Kid clinical interview * Major Medical illness (as determined through medical history in bioscreen and PI interview) such as: * Conditions that are life threatening: * cancer * heart disease * stroke * HIV/AIDS * Seizure Disorders * Conditions that are life threatening Conditions that cause serious disability without necessarily being life threatening: * stroke * closed head or spinal cord injuries * mental retardation * congenital malformations. * Conditions that cause significant pain or discomfort that can cause serious interruptions to life activities: * severe allergies * migraine * arthritis * sickle cell disease * Conditions that require major commitments of time and effort from care-givers for a substantial period of time: * mobility disorders * blindness * Alzheimer's disease and other dementias * chronic obstructive pulmonary disease * paraplegia or quadriplegia * Down's syndrome * depression * Conditions that may require frequent monitoring: * diabetes * conditions requiring anticoagulation treatment * severe asthma * severe allergies * schizophrenia and other psychotic illnesses. * Conditions that predict or are associated with severe consequences: * hypertension (associated with heart disease) * depression (associated with suicide) * diabetes (associated with blindness, kidney failure) * alcohol and other substance abuse (associated with intentional and unintentional injuries). * Recent history of suspected substance abuse or a lifetime history of psychostimulant abuse and/or dependence * Metal implants or braces (as determined through fMRI screening form) Anorexia Nervosa * Pregnancy or breast feeding within last 3 months * Lifetime history of bipolar disorder or psychosis * Illiterate/Blind individuals * Use of an anti-psychotic or other dopamine acting medication including stimulants within the past week at time of MRI * Recent history of substance abuse or dependence (within the last month) * Major Medical illness (as determined through medical history in bioscreen and PI interview) such as: * Conditions that are life threatening: * cancer * heart disease * stroke * HIV/AIDS * Seizure Disorders * Conditions that are life threatening Conditions that cause serious disability without necessarily being life threatening: * stroke * closed head or spinal cord injuries * mental retardation * congenital malformations. * Conditions that cause significant pain or discomfort that can cause serious interruptions to life activities: * severe allergies * migraine * arthritis * sickle cell disease * Conditions that require major commitments of time and effort from care-givers for a substantial period of time: * mobility disorders * blindness * Alzheimer's disease and other dementias * chronic obstructive pulmonary disease * paraplegia or quadriplegia * Down's syndrome * Conditions that may require frequent monitoring: * diabetes * conditions requiring anticoagulation treatment * severe asthma * severe allergies * schizophrenia and other psychotic illnesses. * Conditions that predict or are associated with severe consequences: * hypertension (associated with heart disease) * diabetes (associated with blindness, kidney failure) * alcohol and other substance abuse (associated with intentional and unintentional injuries) within the last month * Metal implants or braces (as determined through fMRI screening form)