Mario is 47 years old and presents with a 2 week history of uncontrollable limb movements. He works in an office and colleagues have commented he is clumsy and increasingly fidgety over the last few months. He was seen in Accident and Emergency over the weekend following a seizure and admits his mood has been low recently for no obvious reason. Both his parents died in a car crash when he was young but he was told his mother had a neurological condition causing rigid limb movements.
Based on the likely condition, what if any, is the inheritance pattern?