The Rev. Jesse Jackson, a civil rights activist known for his left-wing views, was discharged from a Chicago hospital after a 12-day stay for his rare brain disorder, his family announced late Monday.

The 84-year-old Baptist minister received medical care at Northwestern Memorial Hospital, where he was treated for progressive supranuclear palsy. The condition is related to Parkinson’s disease, with which he was diagnosed in 2013. Doctors changed the Parkinson’s diagnosis to reflect the neurodegenerative condition in April.