"Brief flashbacks" refers to short and sudden memories that come back to someone's mind, which may be triggered by a certain event or experience. Full definition
Brief flashbacks fill in the origins of their romance, setting up a sexual tension between the two that carries through to their elderly counterparts. (rottentomatoes.com)
She could even be his wife, Monica Warren, who has only been seen in brief flashbacks in comic books. (newsarama.com)
I had brief flashbacks of temporarily losing my FAVORITE HAT last year and the sadness involved. (theheartsdlite.com)