Friday, May 13, 2022

What Causes Long Term Memory Loss

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Capacity And Duration Of Long

Short Term Memory Loss: 5 Causes & Solutions

So how much information can be stored in the brain in the form of long-term memory? And for how much time? Well, it depends on several factors. Generally speaking, scientists believe that a human brain can store an unlimited amount for a duration that may go beyond decades.

The first factor that influences the duration of long-term memory is the way memory was encoded. Optimally encoded memories last much longer than shallow processed memories. Another factor is the retrieval of memory. The number of times a specific memory is accessed plays an important role in the strengthening of memory. This is probably the reason for better retrieval of information that is repeated and practiced again and again. Giving attention and focus to the information makes it stick to the brain for a relatively long time.

The capacity of long-term memory is thought to have no limits. According to some studies, the upper bound on the size of visual and acoustic long-term memory has not been reached. We may find it difficult to encode the details of many events but under certain conditions, a person succeeds when he focuses and tries to encode the information.

Developmental And Intellectual Disabilities

Developmental and intellectual disabilities like ADHD, autism, Down syndrome, Rett syndrome, and developmental language disorder commonly cause memory problems. Though some of these conditions may affect long-term and visual memory, they most often disrupt working memory.

Working memory gives children the ability to hold information in their mind long enough to complete a task or make decisions. This type of memory only lasts a few seconds and has a limited capacity. Most people can only hold a few pieces of information in their working memory at one time.

Without a strong working memory, your child struggles to pay attention. They have difficulties organizing their time, planning activities, and taking steps to reach a goal. You may notice that they cant follow instructions and they often dont complete homework assignments or chores.

Infections Of The Brain Or Its Lining

Infections like HIV, tuberculosis and herpes can cause memory problems. HIV puts the function of nerve cells at risk by infecting the cells that protect and support them. The virus can also trigger inflammation that can damage the brain and cause forgetfulness. With tuberculosis, memory loss can be a complaint. However, prompt treatment can resolve these problems. Meanwhile, herpes simplex virus can cause a rare neurological disorder called herpes simplex encephalitis. This inflammation of the brain can lead to memory loss. Antiviral drugs may help if treatment is started right away.

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What To Expect At Your Office Visit

The provider will perform a physical exam and ask about the person’s medical history and symptoms. This will usually include asking questions of family members and friends. For this reason, they should come to the appointment.

Medical history questions may include:

  • Type of memory loss, such as short-term or long-term
  • Time pattern, such as how long the memory loss has lasted or whether it comes and goes
  • Things that triggered memory loss, such as head injury or surgery

Tests that may be done include:

  • Blood tests for specific diseases that are suspected

Treatment depends on the cause of memory loss. Your provider can tell you more.

Difference Between Short And Long

11 Causes Of Short

It is thought that Long-term memories differ from short-term memories in the aspect of their longer duration. But the difference between these two types depends upon their definition by someone. Defining both types of memories in clear terms in the first step of differentiating between them.

These memories differ in two fundamental aspects. The first is the duration and the second being chunk capacity limits. There is a huge difference between the duration of these types of memories. Long-term memory has a duration of months and years while short-term memories are thought to stay only a few seconds. There is also a difference in capacity. Short-term memory stores only a tiny bit of information. On the other side, the capacity of long-term memory is thought to unlimited.

Physiologically, the process of establishment of long-term memory differs from that of short-term memory. It involves a change in neuronal structure i.e. long-term potentiation. New neural networks are created and strengthen. The neurons communicate with each other through synapses. The release of neurotransmitters in synaptic clefts enhances the communication between the cells. This whole process does not take place during the creation of short-term memories. Unlike short-term memory, the long-term memories are forgotten only in the case superimposition of a new neural network over the older network.

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Strategies To Improve Long

There are several ways you can improve your long-term memory. When trying to store new information in your long-term memory, it helps to repeat it several times and pay full attention. It also helps to attach meaning. For example, try to link new information with something you already know and understand. This is known as elaborative rehearsal.

Teaching information to others is another very effective way to get knowledge into your memory and remain there since it requires you to understand it and then express it well to someone else.

Using mnemonic strategies can also help improve your ability to learn and then later recall a memory.

Symptoms Indicating A Need To See A Doctor

Memory problems are associated with the symptomatic depiction of losses going on. The changes tend to show up with time alarming you to see a general physician first and then to approach a neurologist. The symptomatic display of the situation can be presented with:

  • Confusion – Delirium
  • Inability to understand small things
  • Paranoia
  • Trouble remembering vital things like a name or phone number
  • Lost into thoughts

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Are There Different Types Of Amnesia

There are many different names for amnesia and amnesia syndromes. Here are a few common terms you may encounter:

  • Retrograde Amnesia: Describes amnesia where you cant recall memories that were formed before the event that caused the amnesia. It usually affects recently stored past memories, not memories from years ago.
  • Anterograde Amnesia: Describes amnesia where you cant form new memories after the event that caused the amnesia. Anterograde amnesia is far more common than retrograde.
  • Post-traumatic Amnesia: This is amnesia that occurs immediately after a significant head injury. It may involve retrograde amnesia, anterograde amnesia, or both.
  • Transient Global Amnesia: A temporary syndrome where you experience both retrograde and anterograde amnesia. Memory loss is sudden and only lasts up to 24 hours.
  • Infantile Amnesia: This is the term used to describe the fact that people cant recall memories of events from early childhood. Few people have memories from before the ages of three to five because the brain areas that support memory are still developing.
  • Dissociative Amnesia/Psychogenic Amnesia: A mental health disorder where you experience amnesia after a significant trauma. You block out both personal information and the traumatic incident from your memory.

What Are Symptoms Of Long

Short Term Memory Loss – What It Is, What Causes It, and How To Prevent It

If you notice that a loved one is forgetting memories from childhood, such as the name of siblings or the high school they attended, this is a sign of long-term memory loss. They may also mix up or completely forget common words, get confused doing basic tasks, get lost in familiar places, and/or exhibit increased irritability and mood swings.

Often, symptoms of short-term memory loss predate the more severe symptoms of long-term memory loss. Keep a close eye on whether or not memory loss is interfering with your loved one’s ability to live independently and safely. At this point, it is likely time to consult with a medical expert.

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Does Your Memory Loss Affect Your Ability To Function

The primary difference between age-related memory loss and dementia is that the former isnt disabling. The memory lapses have little impact on your daily performance and ability to do what you want to do. Dementia, on the other hand, is marked by a persistent, disabling decline in two or more intellectual abilities such as memory, language, judgment, and abstract thinking.

When memory loss becomes so pervasive and severe that it disrupts your work, hobbies, social activities, and family relationships, you may be experiencing the warning signs of Alzheimers disease, or another disorder that causes dementia, or a condition that mimics dementia.

What Causes Amnesia

Amnesia causes are divided into two categories: neurological and functional. Here are some of the most common causes.

Neurological Amnesia.

  • Trauma from a car crash, sports, a fall from a ladder, penetrating object , etc.

Brain diseases:

High levels of corticosteroid.

Functional/Psychogenic/Dissociative Amnesia.

Functional amnesia, a psychiatric disorder, is rarer than neurological amnesia. It is not associated with any known brain trauma or disease but rather appears to occur because of an emotional trauma. This is usually retrograde amnesia . Occasionally, it is so severe that the person may forget their own identity.

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How To Treat Long

The treatment of long-term memory impairment will depend on the underlying reason for your mental condition.

For instance, if cognitive impairment is due to vitamin B12 deficiency, the doctor could prescribe vitamin B12 injections. Or, if the underlying cause of your forgetfulness was a brain tumor, then youll need surgery to remove the tumor.

But, think about this:

Wouldnt it be better if you could prevent memory problems instead of seeking treatment after it reaches advanced stages like Alzheimers disease?

Ill show you how to do it.

What Does Memory Loss Look Like In A Person With Dementia

5 Surprising Causes of Memory Loss !!

Memory loss can be a symptom of any type of dementia. For people with Alzheimers disease, it is often among the very first signs.

Memory can be affected in different ways. These include:

  • not being able to create new memories this means that recent events are not recorded in the persons memory and so cannot be recalled later. For example, the person may forget a conversation they have just had.
  • taking longer to retrieve information this means that, even though the person is still able to recall things, this takes them much longer or they might need a prompt. For example, they might need more time to find the name for an object.
  • not being able to retrieve information this means that, even though the person may be able to create new memories, they are not able to access them when needed. For example, they may get lost in familiar surroundings or on journeys they have taken many times.

In the same way, people with dementia may still be able to remember things that they have repeated many times in their life, such as a route to school. This also includes skills that involved a lot of practice, like playing a musical instrument or driving.

This emotional memory can be triggered by senses, such as hearing a certain piece of music or smelling a certain fragrance.

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Types Of Memory Disorders

Memory disorders are hard to evaluate in clinical terms. Its evaluation and identification will turn out to be beneficial for both the patient and the doctor. Normal physiological memory functioning has to be correlated strictly with the disorder.

There is major anatomical structural involvement each type of memory disorder we will be discussing below. These disorders usually take place when there is the deviation in the purposeful functioning of the brains parts, lacking them behind in storage and retaining the memories.

The disorder may acquire dysfunction of the overall memory functioning process or hinder it just a singular place. The overall cycle needs a strict evaluation to find out the type of disorder prevailing. These disorders may be mild or severe and can even hit one in the progressive stage. Below is the major listing of memory disorders:

How Does Memory Work

Memory is the ability to hold onto and recall information from the past. There are three stages of memory: encoding, storage and retrieval.

  • Encoding: The brain receives new information and creates a series of connections to represent that information. Those connections may link to other information already stored in your memory. For many types of information, you have to be paying attention to accurately encode the information.
  • Storage: Those previously formed connections are maintained in your brain, even though you may not be using them.
  • Retrieval: The brain recreates or activates the connections that represent previously encoded information and you can recall or recognize that information from the past.

This is a simple description of how memory works. Keep in mind that these stages and the processes within them are imperfect. Memory itself is imperfect. The witness to a robbery might remember a blue shirt when the robber was actually wearing green. Such forgetfulness is just that forgetfulness not necessarily a sign of amnesia.

There are several types of memory. Here are the two most relevant to understanding amnesia:

  • Knowledge of facts and events in everyday life. Amnesia can erase these memories.
  • Nondeclarative/Implicit: Non-conscious knowledge. Amnesia will not erase these ingrained memories. If you have amnesia, you should still remember how to walk or ride a bike.
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    How Weed Causes Memory Loss

    Scientists are still sorting out exactly how marijuana causes memory problems, but THC, the primary psychoactive ingredient in marijuana, appears to be the culprit.

    According to the National Institute on Drug Abuse, studies on rodents have shown that THC alters the hippocampus, the part of the brain that processes information and creates memories.

    Deterioration of the hippocampus is what causes age-related memory loss, and THC appears to accelerate this process. Rats that received THC every day for eight months lost as many brain cells in the hippocampus as rats twice their age, according to NIDA.

    Shedding more light on the process, a 2012 study cited in an article by the journal Nature found that THC weakens the connections between brain cells in the hippocampus.

    How Insomnia Causes Short

    What Causes Memory Loss and How to Prevent It

    Getting adequate sleep is one of the most important things you can do for your brain, yet over 50 million Americans struggle with chronic insomnia.

    Sleep-deprived brains are inefficient and have to work harder.

    Lack of quality sleep wreaks havoc on both your long-term and short-term memories.

    Normally, you should be able to remember three to seven bits of information at a time, but when you dont get enough quality sleep, that number plummets to one or two.

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    The Differences Between Short

    Short-term memory is the capacity to hold small amounts of information in the brain. Long-term memory is a different type of memory in which you hold information in your brain from the past.

    Each of these types of memories is very important to us and a person can lose each type of memory for different reasons.

    It is common for the aging brain to begin to lose short-term memory. This short-term memory loss can cause issues such as forgetting where you set your car keys to forgetting that you had a medication to take.

    Long-term memory loss can be caused by issues like injury, infection or trauma. A person with long-term memory loss will commonly forget their past such as old friends names or important vacations that they went on with their family.

    How Does Alzheimers Affect Long

    In its early stages, Alzheimers disease typically affects short-term memory. For example, this might involve forgetting what you ate for breakfast or repeating yourself in conversation. However, as the disease progresses, people gradually experience more long-term memory loss, also called amnesia.

    Alzheimers and other dementias can affect long-term memory in two different ways. A person can have difficulty storing the information in the long-term memory, and they also can have challenges with retrieving it. Different kinds of dementia can result in either or both of these disruptions to long-term memory.

    As Alzheimer’s progresses, semantic, episodic and procedural memories all gradually erode. People with Alzheimer’s may have difficulty finding words memories of significant events, such as weddings, may fade and anything that requires multiple steps might become lost.

    For example, family members often appear familiar to those with advancing dementia, but they might not be able to identify the specific relationship. In the late stages of Alzheimer’s, your loved one might not be able to demonstrate an awareness of your presence.

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    Added Research On The Way

    We discussed that memory disorders are thoroughly catered by symptomatic treatments. But as scientific studies and researches are advancing daily, there is a more innovative and straightforward approach to this. Drug-induced dementias are more likely to be reversed while progressive dementias are made to slow down in its process.

    Alzheimer disease and dementia both can be progressed to slower deterioration rate via DBS. Deep brain stimulation is a device like a pacemaker. Just like a pacemaker is used to elicit the SA node, these devices elicit deep brain portions to create places for memory holdings and integrations. Synaptic transmissions are accommodated by sending electrical signals to specific brain areas.

    The new medicinal approach has also come up with the latest advancements. There are certain protein cutting drugs on their way which are going to destroy plaque formation and neurofibrillary tangles that are formed. This will lead a path to the most advanced evaluative treatment for Alzheimers.

    Types Of Memory Loss: Temporary And Permanent

    Long Term Memory Loss

    Memory loss can be either temporary or permanent.

    • Temporary memory loss is a loss of information that, after a period time without remembering, it returns to normal. For example, if you are unable to remember an actor’s name in the afternoon, and then remember it later that night, or if you take medication that causes “blackouts”, you would be suffering from temporary memory loss.
    • Permanent memory loss, is when you lose memories that you are unable to recover. If you’re not able to remember where you left your house keys, even after being reminded, you would be experiencing permanent memory loss.

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