Since when did he get dementia?
He has a auditory issue his memory etc is suppose to be fine
He has frontotemporal dementia, it’s a rare condition that usually shows up earlier than other forms of dementia.
Patients with the behavioral variant of frontotemporal dementia have a progressive change in their personality where they become disinhibited or maybe apathetic and have more trouble with problem-solving when it comes to their thinking.
The other disorder under the umbrella of frontotemporal dementia is primary progressive aphasia.
Aphasia means lack of language. So, it's a primary progressive disease of language. Both have the same or similar pathologies, but it depends on where that pathology is in the brain.