Eligibility: twins & multiples aged 65+ years, living in VIC or NSW.
A known predictor in brain ageing is 'plaques' which contain the amyloid protein. It is not known however what causes these plaques or who is at risk of developing them.
This study aims to take brain scans (called a NAV-PET scan) to determine whether these plaques have a genetic component and how they relate to performance in memory and thinking.
A NAV-PET scan at the Austin Hospital, Heidelberg, Victoria; or at the Prince of Wales Hospital in Randwick, NSW.
You will also be invited to participate in a face-to-face interview and MRI.
Multiples aged 65+ living in Victoria or NSW.
January 2006 - Ongoing.