Angelman syndrome is a rare neuro-genetic disorder occurring in around 1 in 16,000 individuals, causing developmental disabilities and neurological problems, the characteristics of which include:
- Epilepsy in 85% of cases
- poor sleep pattern
- problems with movement and balance
- severe speech-impairment.
- Two of the most prominent behavioural characteristics are inappropriate laughter and speech deficits.
- sociable behaviour with frequent smiling
- A small head (microcephaly)