Autism is characterized by delays or abnormal functioning before the age of three years in one or more of the following domains: (1) social interaction; (2) communication; and (3) restricted, repetitive, and stereotyped patterns of behavior, interests, and activities.Social impairments are marked by poor use of nonverbal communication, difficulty in peer relations, lack of social-emotional reciprocity, and lack of shared enjoyment.AutismSpeaks.org
The term “communication disorders” encompasses a wide variety of problems in language, speech, and hearing. Speech and language impairments include articulation problems, voice disorders, fluency problems (such as stuttering), and delays in speech and/or language. ChildrensDisabilities.info
Sensory Processing Disorder (SPD)
Sensory processing disorder or SPD is a neurological disorder causing difficulties with taking in, processing, and responding to sensory information about the environment and from within the own body (visual, auditory, tactile, olfactory, gustatory, vestibular, and proprioception).
The development of emotional self-control and social ability in the early years plays a significant role in determining the way children think, learn, react to obstacles, and develop relationships throughout their lives. LiveStrong.com
Oral Motor Issues
Typically present in the child with feeding problems. The suck-swallow-breathe pattern may be poorly developed. Muscles of the tongue, jaw and lips may be weak with chewing patterns underdeveloped.
Down syndrome is the most common chromosome abnormality in children. It is typically associated with a delay in cognitive ability and physical growth, and a particular set of facial characteristic. NDSS.org
Some behavioral issues may be normal in children, however, those who have behavioral disorders develop chronic patterns of aggression, defiance, disruption and hostility. BehaviorDisorder.org
Attention Deficit Disorder (ADD)
ADD is a psychiatric and a neurobehavioral disorder. It is characterized by either significant difficulties of inattention or hyperactivity and impulsiveness or a combination of the two.
Intellectually Challenged is a generalized disorder appearing before adulthood, characterized by significantly impaired cognitive functioning and deficits in two or more adaptive behaviors.