31. One of the issues is that flashbulb memories may deteriorate over time, just like everyday memories. 32. Also, it has been questioned whether flashbulb memories are significantly different from everyday memories, overall. 33. The majority of research on flashbulb memories , however, has found them to be very accurate. 34. It has been suggested that flashbulb memories that take place during the reminiscence bump are especially vivid. 35. Distinctiveness of an event has been considered to be a main contributor to the accuracy of flashbulb memories . 36. This emotional activation in the brain has been shown to be involved in the recall of flashbulb memories . 37. Flashbulb memories differ among cultures with the degree to which certain factors influence the vividness of flashbulb memories.38. Flashbulb memories differ among cultures with the degree to which certain factors influence the vividness of flashbulb memories . 39. One important aspect of flashbulb memory is that it involves emotional arousal when the event is being remembered. 40. Arguably, the flashbulb-memory phenomenon does not motivate the formation of a special flashbulb memory mechanism.