A study examined the memory of a group of Canadian students for the events of September 11, 2001 that took place in the United States. Pezdek hypothesized that whereas event memory would be better than autobiographical memory for a group that was personally involved with the event (i.e. people in New York where the attacks occurred), the reverse would be true for a group that was less involved, such as the Canadian sample. They found that memory for event information was less consistent than memory for autobiographical information. They also found that subjects recalled more information about the personal circumstances and feelings surrounding the event than they did about the actual event. Furthermore, they found that the personal-event memory was significantly more accurate and more consistent in those participants who had experienced high arousal on hearing the news than in those who had experiences relatively little arousal. This better recall of the events of &lt;a href="9/11"&gt;9/11&lt;/a&gt; for those who had experienced greater arousal supports Pezdek's hypotheses that personal-event memory improves with higher levels of experienced emotion. Finally, they found that event memory is positively correlated with level of emotional arousal and shows significant decline with time.