Anterograde And Retrograde Amnesia

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Amnesia is the incompetence to recall longstanding memories or to create new ones. The main symptoms that are associated with amnesia include: the ability to learn new information is impaired, some struggle in recalling new or past events, confusion or disorientation, loss of memory and the formation of false memories. The causes of amnesia include strokes, oxygen deprivation, head inflammation, brain injuries. Psychological trauma (physical, sexual or emotional abuse) has also been known to be a cause of amnesia.

There are two main types of amnesia, anterograde and retrograde amnesia. Anterograde amnesia is defined as the inability to create or remember new events after trauma. This means that people with anterograde amnesia cannot accumulate additional information. Retrograde amnesia is the opposite, meaning that the patient does not have recollection of events prior to their incident, but still can store new information.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2064941/
The main cognitive impairment that is associated with amnesia is the difficulty in recalling information …show more content…

MTT is the idea that the hippocampus is always involved in the retrieval and storage of episodic memories. This theory has the idea that every time an episodic memory is attained is it re-coded. The re-coding leads to the development of memory traces that are mediated by hippocampal neocortical neurons. Episodic memories are memories of autobiographical events, for example, a time and a place that aggravate an emotion. Semantic memories are thought to be able to be established in places aside from the hippocampus. The MTT proposes that hippocampus is vital for the retrieval of semantic and episodic memories, but semantic memories can be stored in the neocortex, and will be able to still be retrieved if damage to the hippocampus

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