Electroconvulsive therapy (ECT), which involves 11 inducing seizures with electrical currents, can cause retrograde memory loss.Conditions like Alzheimer’s, Huntington’s 10, and multiple sclerosis can affect cognitive functioning which may contribute to retrograde amnesia.A temporary lack of oxygen to the brain during a heart attack can lead to brain damage and further develop retrograde amnesia.Retrograde amnesia can be 2 caused by various factors, including: However, their long-term memory and other cognitive functions remain intact. An example of retrograde amnesia with an episode of TGA is, a sudden inability to form new memories and difficulty recalling recent events or information. Transient Global Amnesia (TGA) is a temporary and sudden 9 episode of memory loss, typically lasting for a few hours. Individuals experiencing post-traumatic amnesia often have difficulty recalling the specific event or events that led to their amnesia. Post-traumatic amnesia is a type 8 of amnesia that occurs as a result of a brain injury, such as a stroke, coma, or head trauma. It typically occurs following a traumatic or stressful event and involves the loss of memories for a specific period of time before the event. This type of retrograde amnesia is believed to be 7 caused by psychological factors rather than physical brain injury. ![]() In this type of amnesia, a person may have difficulty recalling events and information that occurred shortly before the onset of amnesia, while memories from the more distant past may be relatively preserved. For instance, a person may have no recollection of a certain period in their life, such as their high school years, including specific events, people, and experiences. This is characterized by memory loss 6 for a specific category of information or a specific type of memory, while other types of memory remain intact. The following are the types of 5 retrograde amnesia: 1.
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