Suparna Rajarams research focuses on memory and amnesia, particularly how we recall past experiences and acquire and retain new knowledge. She investigates the differences between implicit (unconscious) memory and explicit (conscious) recollection as well as the components of episodic (i.e. autobiographical details, times, places) and semantic (i.e. meanings, concepts) memory, and familiarity. Rajaram is also interested in how attentional demands in our environment lead us to ignore salient information, thus inhibiting expression of new memories. Rajarams new line of research focuses on how collaboration with others may improve memory.