![]() ![]() Īmnesia that follows head trauma could be temporary or permanent. Usually last less than twenty four hours. Sudden episodic loss of anterograde and partial retrograde memory. It is reversible and has variable time duration. Dissociative fugue has been observed in these patients where the identity and memory is lost.Repressed amnesia is seen in patients where they are unable to recall a stressful or traumatic incident from the past due to psychological defense mechanism.Dissociative Amnesia is also referred to as psychological amnesia. Temporary, episodic retrograde memory loss without structural brain damage. Long-term memory are long lasting and are formed by structural/functional changes in neuronal network.Short-term memory are for short period of time and use existing neuronal network.Memory can also be divided into groups depending on the duration:.Retrograde amnesia: The loss of memory prior to the onset of amnesia.Anterograde amnesia: The inability to form new memory.Amnesia can be divided into two broad groups:.Memory can also be divided into two groups depending on the duration, short-term memory and long-term memory. Other types of amnesia are Psychological including repressive amnesia and dissociative fugue, infantile amnesia, neurological amnesia ( Alzheimer's disease, Pick's disease), post- traumatic Amnesia, drug-Induced Amnesia, transient global amnesia. Retrograde amnesia is the loss of memory prior to the onset of amnesia and anterograde amnesia is the inability to form new memory. Associate Editor(s)-in-Chief: Zehra Malik, M.B.B.S OverviewĪmnesia can be divided into two broad groups, retrograde amnesia and anterograde amnesia. Risk calculators and risk factors for Amnesia classificationĮditor-In-Chief: C. Natural History, Complications and PrognosisĪmerican Roentgen Ray Society Images of Amnesia classificationĪll Images X-rays Echo & Ultrasound CT Images MRI ![]() Differentiating Amnesia from other Diseases
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