This study focuses on understanding social-cognitive functioning. This means looking at how people think and behave in social situations, especially when there are problems. Social cognition often gets disturbed in people with neurological issues, leading to social conduct disorders. The new test, REALSoCog, is like a serious video game designed to identify these disturbances. The study aims to see how good this test is at identifying issues in people with neurodegenerative diseases like Alzheimer's disease (AD), dementia with Lewy bodies (DCL), and fronto-temporal lobar degeneration (FTD). This will help doctors understand social behaviors better and provide early care.

• Participation involves being part of a group study where the new test will be used.
• The study is for people aged 18-90 with certain scores on the Mini Mental State Examination (MMSE).
• Caregivers must be over 18 and have regular contact with the patient.