The criteria for<unk>  in the DSM-5 are: A. A pattern of behavior in which a child actively approaches and interacts with unfamiliar adults and exhibits at least two of the following: # Reduced or absent reticence in approaching and interacting with unfamiliar adults. # Overly familiar verbal or physical behavior (that is not consistent with culturally sanctioned and with age-appropriate<unk>  boundaries). # Diminished or absent checking back with an adult caregiver after venturing away, even in unfamiliar settings. # Willingness to go off with an unfamiliar adult with little or no hesitation. B. The behaviors in Criterion A are not limited to impulsivity (as in Attention-Deficit/Hyperactivity<unk>  but include<unk> ly<unk>  behavior. C. The child has experienced insufficient care as evidenced by at least one of the following: #<unk>  neglect or deprivation where the child's emotional needs are not met by care-giving adults. # Repeated changes of primary caregivers that limit the ability to form stable attachments (e.g., frequent changes in foster care). # Rearing in unusual settings that severely limit opportunities to form selective attachments (e.g., institutions with the high child to caregiver ratios). D. The care in Criterion C is presumed to be responsible for the disturbed behavior in Criterion A (e.g., the disturbances in Criterion A began following the pathogenic care in Criterion C). E. The child has a developmental age of at least nine months. Specifiers It is considered persistent if the duration is more than 12 months. It is considered severe if all the symptoms are present. The ICD-10 definition is: "A particular pattern of abnormal<unk>  functioning that arises during the first five years of life and that tends to persist despite marked changes in environmental circumstances, e.g. diffuse, nonselectively focused attachment behavior, attention-seeking and indiscriminately friendly behavior, poorly modulated peer interactions; depending on circumstances, there may also be associated emotional or behavioral disturbance." Differential diagnosis can be attention deficit hyperactivity<unk> .
Disinhibited social engagement disorder
Autism's False Prophets
Multiple complex developmental disorder
Autism spectrum
Personality development disorder
Childhood disintegrative disorder
Frontal lobe disorder
Tourette syndrome