Dr. ohno conducts research on retrospective memory. which type of memory will ohno's research participants be recalling

The research participants will likely be recalling episodic, semantic, autobiographical and declarative memories. 

Retrospective memories involve memories from one's near and long-term past. It involves remembering things like: the name of the street you grew up on, the name of your first pet, the day you graduated, the name of the first United States president, and emotional events that took place in your life.