Amnesia is a generic term for describing memory loss conditions. Memory loss in amnesia can be temporary or permanent, but usually only temporary. Causes of amnesia can be due to a brain injury, influence of certain medications, use of alcohol, traumatic events or due to other conditions such as Alzheimer’s disease.
Amnesia anterograde means that a person is unable to recall something new, while the Amnesia retrograde means the person has forgotten their past events.
In many cases mild amnesia, as caused by concussion, the person cannot recall a blow or a collision on their head or his recovery time, but the rest of their memory remains intact. Amnesia Infantil, or inability to recall events in the month or early years of life, this is normal and universal. It is thought that the process of brain memory takes time to thrive.
Symptoms of Amnesia
Symptoms of amnesia depend on the cause, but generally include:
1. Memory loss
3. Inability to recognize faces or places
4. After the man recovered, they usually could not recall their amnesia episodes.
Causes of Amnesia
Memory loss can be caused by various conditions, such as:
1. Head injuries
2. Severe illness
3. High fever
5. Emotional Shock or hysteria
6. Alcohol-related brain damage
7. Certain medications, such as barbiturates or heroin
8. General Anesthesia
9. Electroconvulsive therapy (ECT)
11. Transient ischaemic attack (‘ mini stroke ‘)
12. Alzheimer’s disease
13. Brain surgery.
Memory is mysterious
The way the brain saves information remains a mystery until now. Today’s theories are sometimes contradictory, such as: 1. Widespread distribution of memory in the outer layer of the brain (cortex).
2. Widespread distribution of memory, with certain structures (such as the hippocampus) plays an important role.
3. Local memory Area in certain structures of the brain itself
4. Memory storage in brain molecules
5. Memory storage in the group of nerve cells (neurons).
The brain is believed to have several different forms of memory, namely:
- Short-term. New information will be stored in a short time. If the information is not further processed, it will be forgotten immediately.
- Long-term. Information from short-term memory turns into long-term memory.
- Declarative. Memories are conscious of events and information.
- Non declarative. Only once learned, habits such as driving a car that has been ingrained and automatic body done.
The severity of amnesia
The severity of amnesia depends on the cause. Concussion, convulsions and electroconvulsive therapies are believed to interfere with temporary brain electrical activity and prevent long-term memory to work properly.
Stress due to traumatic events can also interfere with short-term memory processing. Amnesia episodes are usually temporary. In the case of severe amnesia, memory loss can be permanent.
Some types of brain trauma or brain surgery can damage the vital structure of memory. The type of memory loss experienced depends on which part of the brain is affected. In Alzheimer’s disease, people usually can still recall events in the past, but will usually experience a decline in memory due to their condition.
To diagnose amnesia, several tests are required, such as:
- Medical history Screening
- General examination
- Short and long term recall ability testing
- Other tests related to mind processing
- X-rays on the head
- Blood test
- Computed tomography Scan (CT Scan)
- Cerebral angiography (scans performed after special dyes are injected).
Treatment of Amnesia
Treatment of amnesia depends on the cause. For example, someone who has experienced traumatic events will be effectively handled with sedation, care with compassion, and may require the help of psychiatrists.
Concussions should be rested after the complications are cured. If alcoholism is the cause, then the sufferer should stop consuming alcohol, emotional support and adequate nutrients are important for the body. In the case of Alzheimer’s disease, various new medications that will improve brain cholinergic function are already widely available.