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The term flashbulb memory was coined by Roger Brown and James Kulik in 1977. [2] They formed the special-mechanism hypothesis, which argues for the existence of a special biological memory mechanism that, when triggered by an event exceeding critical levels of surprise and consequentiality, creates a permanent record of the details and circumstances surrounding the experience. [2]
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.
When recalling a memory, if someone is recalling an event by themselves or within a group of people, the emotions that they remember may change as well recall of specific details. Individuals recall events with stronger negative emotions than when a group is recalling the same event. [ 45 ]
Due to the elusive nature of involuntary recurrent memories, very little is known about the subjective experience of flashbacks. However, theorists agree that this phenomenon is in part due to the manner in which memories of specific events are initially encoded (or entered) into memory, the way in which the memory is organized, and also the way in which the individual later recalls the event. [5]
Individuals with hyperthymesia can extensively recall the events of their lives, as well as public events that hold some personal significance to them. Those affected describe their memories as uncontrollable associations; when they encounter a date, they "see" a vivid depiction of that day in their heads without hesitation or conscious effort. [7]
As of April 2016, there are an estimated 61 confirmed cases of hyperthymesia worldwide. Cases of hyperthymesia differ from related cases of savant memory in that savants have an extraordinary memory for specific hobbies, and events of a narrow basis, whereas cases of confirmed hyperthymesia show surprisingly detailed memory for specific and general events.
According to Kukushkin, the memories stored in non-brain cells in other parts of the body are memories strictly related to the roles that those specific cells play in human health. Thus, he detailed:
Autobiographical memory (AM) [1] is a memory system consisting of episodes recollected from an individual's life, based on a combination of episodic (personal experiences and specific objects, people and events experienced at particular time and place) [2] and semantic (general knowledge and facts about the world) memory. [3]