![]() ![]() These include stroke, trauma, surgery, encephalitis, alcoholism, Wernicke-Korsakoff syndrome, anoxia to the brain, etc. Other causesĪnterograde amnesia can also result from some mother causes other than the hippocampal damage. Thus, it is believed that any damage or injury to the hippocampus can result in anterograde amnesia. However, the memories stored in the brain prior to the removal of the hippocampus remained intact. It has been found that the removal of the hippocampus in some patients resulted in the inability to store new information in the long-term or intermediate memory. It is involved in the formation of long-term memory. Hippocampus is a part of the brain present in the medial temporal lobe. However, he cannot keep the record of the event that occurred after the injury to the brain. It is a type of amnesia in which the person is unable to create new memories. However, various other types of amnesia have also been studies.įollowing are the types of amnesia that are known to the neuroscientists today. There are two main types of amnesia anterograde amnesia (inability to form new memories) and retrograde amnesia (old memories are lost). In this article, we will discuss major types of amnesia, factors that can cause amnesia, the clinical features of the diseases, and its management. It may also be present in some individuals at the time of birth. Amnesia can occur either due to damage to some areas of the brain or due to some substance abuse. Depending on the cause of damage, it may result in partial or complete memory loss. Self-stimulation is possible due to the facilitation of the synapses.Īmnesia is defined as a temporary or permanent state of decreased memory. The same information can be recalled by the self-stimulation of these synapses by the signals arising within the brain. Each time certain sensory signals pass through a specific sequence of synapses, they become facilitated. This information is stored in the form of facilitated synaptic tracts in the brain. doi:10.Memory is defined as the storage of information in the brain. The use of technology among persons with memory concerns and their caregivers in the United States during the COVID-19 pandemic: Qualitative study. doi:10.1002/gps.4166Īlbers EA, Mikal J, Millenbah A, Finlay J, Jutkowitz E, Mitchell L, Horn B, Gaugler JE. Social support group interventions in people with dementia and mild cognitive impairment: a systematic review of the literature. Effective occupational therapy intervention with adults demonstrating agitation during post-traumatic amnesia. The effects of electroconvulsive therapy on memory of autobiographical and public events. Lisanby SH, Maddox JH, Prudic J, Devanand DP, Sackeim HA. ![]() United states of amnesia: rescuing memory loss from diverse conditions. Genetic and Rare Diseases Information Center. Focal retrograde amnesia: voxel-based morphometry findings in a case without MRI lesions. ![]() Sehm B, Frisch S, Thöne-Otto A, Horstmann A, Villringer A, Obrig H. ![]() Classic and recent advances in understanding amnesia. doi:10.1016/j.neuropsychologia.2013.09.015Īmerican Psychological Association. The nature of anterograde and retrograde memory impairment after damage to the medial temporal lobe. Smith CN, Frascino JC, Hopkins RO, Squire LR. Traumatic brain injury (TBI): Damage to the brain due to stroke, injury, or other causes can lead to memory loss.Seizures: Seizures due to epilepsy or other causes can also damage areas of the brain associated with memory.People with Korsakoff's syndrome experience symptoms of retrograde amnesia caused by decreased hippocampal volume. Nutritional deficiencies: Excessive, chronic alcohol intake can lead to a thiamine (B12) deficiency called Korsakoff's syndrome.Infections: Brain infections such as encephalitis can sometimes cause retrograde amnesia.It may improve with time, but some people experience persistent memory gaps. Electroconvulsive therapy (ECT): ECT is a treatment for depression and other psychiatric conditions that involves inducing a seizure with a brief electrical current.Disease: Progressive conditions such as Alzheimer’s, Huntington’s, and multiple sclerosis may lead to symptoms of retrograde amnesia.Cardiac arrest: A heart attack can lead to a temporary lack of oxygen to the brain, which may lead to retrograde amnesia, other cognitive problems, or brain damage. ![]()
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