Vividness
The vividness of the memory can increase one’s belief in the veracity of the memory, though not as strongly as spatial context. Some memories are extremely vivid. For the person recalling vivid memories of personal significance, these memories *appear* to be more accurate than everyday memories. These memories have been termed flashbulb memories. However, flashbulb memories may not be any more accurate than everyday memories when evaluated objectively. In one study, both flash bulb memories of 9/11 and everyday memories deteriorated over time; however, reported vividness, recollection and belief in accuracy of flashbulb memories remained high.
Read more about this topic: Autobiographical Memory, Accuracy