A personal-event memory is an individual's memory of an event from a certain moment of time. Its defining characteristics are that it is for a specific event; includes vivid multi-sensory elements (sights, sounds, smells, body positions, etc.); is usually recalled in detail; and is usually believed by the individual to be an accurate representation of the event. Relation to other types of memory Episodic memory and personal-event memories both are recollections of an event in one's life. A personal-event memory is a more specific type of episodic memory in that there is more detail and sensory qualities to a personal-event memory. Both flashbulb memory and personal-event memory contain highly vivid details and sensory qualities for a specific moment in time. They both also have a belief in accuracy of the event remembered. However, while flashbulb memories focus on events that are extremely striking and focus on the reception of shocking news, personal-event memories can include a wide variety of events that simply just stand out in the mind. A study (Talarico and Rubin, 2003) found a steady decrease in the accuracy and number of details remembered from a flashbulb memory after several months following the event. Although this study found a decrease in recalled accuracy and number of from flashbulb memories, there is a similar study that explains that these memories are more resistant to fading than memories of other personal events at the time that the flashbulb memory was retained. Neurological components Studies have shown that activity in the medial temporal lobe (MTL) structures: perirhinal cortex, parahippocampal cortex and the hippocampus are vital to the recollection of personal-event memories along with other memories. the medial temporal lobe structures, parietal and frontal lobes of the brain, all contribute to forming and retrieving memories. The MTL structures are the primary components for creating long-term memories via words, spatial information, and recognition. The amygdala also has been linked to personal-event memory storage and retrieval. Laboratory studies have demonstrated more activity in the amygdala and hippocampus for recollection of emotional memories. The emotional component of these memories seems to play an important role in their ease of retrieval. Other studies demonstrate that Atrophy of the hippocampus due to aging in humans has been shown to decrease recollection of personal events. 9/11 study A study examined the memory of a group of Canadian students for the events of September 11, 2001 that took place