It is common for individuals with<unk>  to have more intact social skills and a lower level of intellectual deficit than individuals with other PDDs. Characteristics of many individuals with<unk>  are: * Communication difficulties (e.g., using and understanding language) * Difficulty with social behavior * Paranoia, a characteristic form of social anxiety, derealization, transient psychosis, and unconventional beliefs if the environment changed without further notice * Uneven skill development (strengths in some areas and delays in others) * Unusual play with toys and other objects * Repetitive body movements or behavior patterns * Preoccupation with fantasies that interfere and that are not normal to have at a certain age depending on social, cultural and religious norms. * Unconventional perception of the world * Maladaptive daydreaming * Mirrored-Self Misidentification (The delusion that the individual in the mirror is a child, even though they are an older teen or adult)
Pervasive developmental disorder not otherwise specified
Multiple complex developmental disorder
Zellweger spectrum disorders
Zellweger syndrome
Asperger syndrome
Childhood schizophrenia
Childhood disintegrative disorder
Tardive dysmentia