Episodic memory - Definition

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Episodic memory is a form of memory specially dedicated to specific memories of past events: wedding day, school outing, highlight of one's life, emotional shock. This includes the memory of the facts themselves, but also their temporal context (the date), spatial (location), and emotional (the emotions felt during the event). This is somewhat the opposite of semantic memory, which stores general facts: language learning, geography, knowledge of general culture. Amnesia, temporary or permanent loss of episodic memory, can occur due to various neurodegenerative diseases such as dementia which includes the famous Alzheimer's disease.