One of its bizarre features is perseveration, in which the victim of an attack faithfully and methodically repeats statements or questions, complete with profoundly identical intonation and gestures "as if a fragment of a sound track is being repeatedly rerun." This is found in almost all TGA attacks and is sometimes considered a defining characteristic of the condition. A person experiencing TGA has memory impairment with an inability to remember events or people from the past few minutes, hours or days ( retrograde amnesia) and has working memory of only the past few minutes or less, thus they cannot retain new information or form new memories beyond that period of time ( anterograde amnesia). This onset of TGA is generally fairly rapid, and its duration varies but generally lasts between 2 and 8 hours.
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