Complex sentence: A flashbulb memory is a highly detailed, exceptionally vivid'snapshot' of the moment and circumstances in which a piece of surprising and consequential (or emotionally arousing) newmories, in actuality, are only somewhat indiscriminate and are far from complete.
Split into simpler sentences: A flashbulb memory is a highly detailed, exceptionally vivid'snapshot' of the moment and circumstances in which a piece of surprising and consequential (or emotionally arousing) news was heard. Flashbulb memories, in actuality, are only somewhat indiscriminate and are far from complete.