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  2. Retrograde amnesia - Wikipedia

    en.wikipedia.org/wiki/Retrograde_amnesia

    In neurology, retrograde amnesia (RA) is the inability to access memories or information from before an injury or disease occurred. [1] RA differs from a similar condition called anterograde amnesia (AA), which is the inability to form new memories following injury or disease onset. [ 2 ]

  3. Amnesia - Wikipedia

    en.wikipedia.org/wiki/Amnesia

    Amnesia is a deficit in memory caused by brain damage or brain diseases, [1] but it can also be temporarily caused by the use of various sedative and hypnotic drugs. The memory can be either wholly or partially lost due to the extent of damage that is caused. [2] There are two main types of amnesia:

  4. Retrospective memory - Wikipedia

    en.wikipedia.org/wiki/Retrospective_memory

    Retrograde amnesia is defined as the loss of memory of events and experiences occurring prior to an illness, accident, injury, or traumatic experience such as rape or assault. The amnesia may cover events over a longer or only a brief period. Typically, it declines with time, with earlier memories returning first. [9]

  5. Post-traumatic amnesia - Wikipedia

    en.wikipedia.org/wiki/Post-traumatic_amnesia

    Post-traumatic amnesia (PTA) is a state of confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is disoriented and unable to remember events that occur after the injury. [1]

  6. Recall (memory) - Wikipedia

    en.wikipedia.org/wiki/Recall_(memory)

    Focal retrograde amnesia (FRA), sometimes known as functional amnesia, refers to the presence of retrograde amnesia while knowledge acquisition remains intact (no anterograde amnesia). Memory for how to use objects and perform skills ( implicit memory ) may remain intact while specific knowledge of personal events or previously learned facts ...

  7. Ribot's law - Wikipedia

    en.wikipedia.org/wiki/Ribot's_law

    In his 1882 book, "Diseases of Memory: An Essay in the Positive Psychology", [3] Ribot explained the retroactive phenomena of trauma or event-induced memory loss. Patients who incurred amnesia from a specific event such as an accident often also lost memory of the events leading up to the incident as well. In the case of some, this retrograde ...

  8. Anterograde amnesia - Wikipedia

    en.wikipedia.org/wiki/Anterograde_amnesia

    In neurology, anterograde amnesia is the inability to create new memories after an event that caused amnesia, leading to a partial or complete inability to recall the recent past, while long-term memories from before the event remain intact.

  9. Memory disorder - Wikipedia

    en.wikipedia.org/wiki/Memory_disorder

    Amnesia is an abnormal mental state in which memory and learning are affected out of all proportion to other cognitive functions in an otherwise alert and responsive patient. [5] There are two forms of amnesia: Anterograde amnesia and retrograde amnesia , that show hippocampal or medial temporal lobe damage.