“…Priming involuntary autobiographical memories Spontaneous recollection of the past appears to be common in everyday life (e.g., Ball & Little, 2006;Berntsen, 1996Berntsen, , 1998Mace, 2004Mace, , 2005Schlagman & Kvavilashvili, 2008; see reviews in Berntsen, 2009;Mace, 2007bMace, , 2010a. While early studies had placed estimates of the occurrence of involuntary memories to be between three and five per day (Berntsen, 1996(Berntsen, , 1998, more recent studies have suggested that their occurrence may be around 20 per day, perhaps outstripping voluntary autobiographical memory occurrence (Rasmussen & Berntsen, 2011;Rasmussen, Ramsgaard, & Berntsen, 2015). By definition, involuntary autobiographical memories are random in the sense that one does not intend to remember the past event.…”