Flashbulb memories and non-flashbulb memories also differ qualitatively and not just quantitatively. Flashbulb memories are one type of autobiographical memory. These memories have been termed flashbulb memories. Additionally, the source monitoring problem contributes to the recollection and memory errors of flashbulb memories. These propositions were based on flashbulb memories of the Marmara earthquake. There are some similarities between traumatic and flashbulb memories. Biological reasons for gender variances in flashbulb memory may be explained by amygdala asymmetry. Such research focuses on identifying reasons why flashbulb memories are more accurate than everyday memories. Younger and older adults also showed different reasons for recalling vivid flashbulb memories. The latent structure of a flashbulb memory is taxonic, and qualitatively distinct from non-flashbulb memories. The retelling or rehearsal of personally important events also increases the accuracy of flashbulb memories. Research on flashbulb memories generally shares a common method. Respondents reported flashbulb memories, despite low consequentiality ratings. More emotions are reported, resulting in more consistent Flashbulb Memories. This may explain why flashbulb memory typically involves traumatic events.