by using positive or negative reinforcement to encourage or discourage behaviors over time. Environmental Therapy: Sensory Enrichment Therapy uses enrichment of the sensory experience to improve symptoms in autism, many of which are common to CDD. Medications: There are no medications available to directly treat CDD. Antipsychotic medications are used to treat severe behavior problems like aggressive stance and repetitive behavior patterns. Anticonvulsant medications are used to control seizures. References Further reading Dobbs, David (2016). "The most terrifying childhood condition you've never heard of." Spectrum 6 July 2016, accessed 6 May 2017 at &wteswitched=1 External links NIH/Medline Pervasive developmental disorders Neurological disorders in children Learning disabilities Autism spectrum disorders