Memory refers to a memory of an event that is so emotionally powerful that the person remembers the event as vividly as if it were indelibly preserved on film.

Flashbulb                      

Explanation:

Flashbulb memory: In psychology, the term flashbulb memory is defined as an unusually vivid and highly detailed snapshot of a specific circumstance or moment in which an individual experiences or heard a surprising and significant news. The flashbulb memories are being stored in the amygdala which is a part of the limbic system.

Example: Assassination of Kennedy, September 11th, etc.

Flashbulb memories are considered to decline more or less around three months after a particular event has happened.

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