Irina Trofimova is an Assistant Clinical Professor and Senior Researcher in the Department of Psychiatry & Behavioural Neurosciences at McMaster University. Irina is interested in four types of research initiatives and lines of cooperation with the McMaster Institute of Aging (MIRA). Firstly, Irina is interested in screening for neurochemically-based individual differences in aging where she would conduct analytic reviews of literature related to the effects of aging on the functioning of main neurotransmitter systems, hormones and opioid peptides systems. Secondly, Irina is interested in screening for biologically-based differences and their progress across the lifespan. Thirdly, her current research is focused on comparing several tests commonly used to screen for dementia in older adults and lastly, Irina is interested in cross-cultural longitudinal research and comparing Canadian samples with samples from other countries, specifically longitudinally.