According to the British Academy Of Film And Television Arts (via Variety), Monty Python member Terry Jones has been diagnosed with primary progressive aphasia, a rare form of dementia. As CNN explains, this syndrome is “often a result of strokes or head injuries and can occur in other neurological disorders, including brain tumors and Alzheimer’s disease.” BAFTA revealed Jones’ diagnosis while announcing that it would pay tribute to him during the 25th annual British Academy Cymru Awards—which specifically honor Welsh performers—on October 2.