A ten-year follow-up of a study of memory for the attack of September 11, 2001: Flashbulb memories and memories for flashbulb events.

@article{Hirst2015ATF,
  title={A ten-year follow-up of a study of memory for the attack of September 11, 2001: Flashbulb memories and memories for flashbulb events.},
  author={William Hirst and Elizabeth A. Phelps and Robert Meksin and Chandan J. Vaidya and Marcia K. Johnson and Karen J. Mitchell and Randy L. Buckner and Andrew E. Budson and John D. E. Gabrieli and Cindy Lustig and Mara Mather and Kevin N. Ochsner and Daniel L. Schacter and Jon S. Simons and Keith B. Lyle and Alexandru Cuc and Andreas Olsson},
  journal={Journal of experimental psychology. General},
  year={2015},
  volume={144 3},
  pages={
          604-23
        }
}
Within a week of the attack of September 11, 2001, a consortium of researchers from across the United States distributed a survey asking about the circumstances in which respondents learned of the attack (their flashbulb memories) and the facts about the attack itself (their event memories). Follow-up surveys were distributed 11, 25, and 119 months after the attack. The study, therefore, examines retention of flashbulb memories and event memories at a substantially longer retention interval… 
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