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What Part Of The Brain Is Affected By Memory Loss

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Box 2 Damage To The Hippocampus

When someone suffers from memory loss, what part of the brain is affected?

One way that a person can get amnesia is after an incident that prevents oxygen from getting to the brain. This can happen as a result of a heart attack, very bad seizures, or a traumatic brain injury. When the brain is not getting enough oxygen, brain tissue starts to shrink and does not work well any more. The hippocampus is very sensitive to a lack of oxygen. This means that it atrophies faster than other parts of the brain when it does not have enough oxygen. Unfortunately, when the brain is injured, sometimes it does not heal the same way that skin heals when a person gets a scrape or a cut. Sometimes, the brain stays injured and atrophied and causes problems like amnesia.

Which Parts Of The Brain Affect Memory

Medically Reviewed By: Aaron Horn

The brain is extremely complex, and researchers are constantly learning more about how it functions. More and more studies are done every year trying to discover more information about how the brain works, particularly about memory. A lot is known, but still, more is left to be discovered.

When faced with memory disorders or memory loss, it can be helpful to have an understanding of how the brain manipulates memory. Especially in cases of head injury, knowing which parts of the brain affect memory can help you understand what to expect in the future. Unfortunately, the brain cells responsible for memory cannot be replaced, which means that most memory loss is permanent.

Dementia With Lewy Bodies

The brain of a person with dementia with Lewy bodies often shows less overall shrinkage than the brain of someone with Alzheimer’s or FTD. Instead, tiny deposits of protein are seen in the cerebral cortex, limbic system and brain stem.

In DLB, early damage is seen in the visual pathways and – in some studies – also in the frontal lobes. This may explain why problems with vision and attention are common early symptoms of DLB.

Similarly, Lewy bodies in the brain stem may be linked to the problems with movement, as also seen in Parkinson’s disease.

Dementia Connect support line

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Slowing The Progression Of Alzheimers Disease And Dementia

While the progression of Alzheimers disease and many kinds of dementia cannot be reversed, there are treatments available to slow the progression and protect neural tissues, allowing patients to maintain independence and a higher quality of life for as long as possible.

If you are looking for a local neurologist in New York, look no further than Crystal Run Healthcare. Our providers span a wide array of neurology subspecialties to bring the most comprehensive and innovative treatment plans available for Alzheimers and dementia. or visit us online at to schedule a consultation and begin treatment as soon as possible.

What Part Of The Brain Does Short Term Memory Loss Affect

Vascular Dementia: The Heart &  Mind

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What Diseases Automatically Qualify You For Disability

Some conditions automatically qualify for disability benefits if you have a confirmed diagnosis.The Compassionate Allowances ListAcute leukemia.Lou Gehrigs disease Stage IV breast cancer.Inflammatory breast cancer.Gallbladder cancer.Early-onset Alzheimers disease.Small cell lung cancer.Hepatocellular carcinoma.

Memory Loss Cause # 5 Depression And Anxiety

Severe depression or sorrow can in some cases create forgetfulness as well as amnesia, as well as typically affecting your ability to concentrate. Feelings of despair, severe pain at the loss of an enjoyed one, as well as various other emotional injury can cause feeling out of touch, or in a fog and neglecting small details..

Anxiousness influences in between 3% and also 15% of older grownups, according to Mental Health America, as well as current research studies show that 2.2% of elders report serious psychological distress during the 30 days prior to the study. Those aged 45-65 reported distress 4.4% of the moment, as well as likewise report a high level of anxiousness. There are many distressing signs and symptoms of stress and anxiety, consisting of:.

Breast discomforts.Lack of ability to concentrate.Lack of temporary memory.Lightheadedness.Concern of dying.

There are numerous factors an individual can become nervous, from family members issues, life changes, cash issues, and health worries. No matter the factor behind your anxiousness, there are a selection of methods you can take care of your tough sensations at home, and also alternatives for when anxiety and also anxiety become tough to live with:.

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Cortical Strokes Vs Subcortical Strokes

Before we dive into the different areas of the brainaffected by stroke, you should know the difference between cortical vssubcortical strokes.

The cerebral cortex/cerebrum is a large part of the brain that includes 4 lobes: the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. Strokes in these regions are known as a cortical strokes.

Aside from the cerebrum, there are subcortical structures thatlie deep within the brain. Strokes in these areas of the brain are also knownas subcortical strokes.

The arteries that supply the subcortical areas of the brain are smaller and more delicate. Subcortical strokes are often hemorrhagic strokes due to the fragile arteries bursting, often from high blood pressure.

There are many differences between cortical and subcortical strokes. For example, cortical strokes often impact higher level functioning and its uncommon for subcortical strokes to result in language difficulties.

We will discuss other patterns next!

Causes Of Frontotemporal Dementia

How does memory retrieval work in the brain?

This is an important cause of dementia in younger people. It’s most often diagnosed between the ages of 45 and 65.

It’s caused by an abnormal clumping of proteins, including tau, in the frontal and temporal lobes at the front and sides of the brain.

The clumping of these proteins damages nerve cells in the frontal and temporal lobes, causing brain cells to die. This leads to shrinking of these areas of the brain.

Frontotemporal dementia is more likely to run in families than other, more common causes of dementia.

Read more about frontotemporal dementia.

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Memory Loss After Traumatic Brain Injury

September 10, 2008 By Diseases & Conditions

Memory loss is one of the most common cognitive side effects of traumatic brain injury . Even in mild TBI, memory loss is still very common. The more severe the victims memory loss after the TBI, the more significant the brain damage will be most likely. TBIs are very common, especially in motor vehicle accidents, motorcycle accidents. Falls often cause both minor and severe traumatic brain injuries.

Some TBI-related amnesia such as patients unable to recall what happened just before, during and after the head injury is temporary. Temporary memory loss is often caused by swelling of the brain in response to the damage it sustained. But because the brain is pressed against the skull, even parts that were not injured are still not able to work. The patients memory typically returns as the swelling goes down over a period of weeks or even months. Temporary memory loss may also be an emotional response to the stressful events surrounding a TBI.

Damage to the nerves and axons of the brain may also result in memory loss. The brain cannot heal itself like an arm or a leg, so any function that is damaged during a TBI is permanently impaired unless the brain learns how to perform that function differently. Fixed amnesia may include the loss of meanings of certain common, everyday objects or words, or a person may not remember skills he had before the TBI.

What Other Things Help

Research has shown that physical exercise helps to enhance brain health and improves mood and general fitness. A balanced, heart-healthy diet, such as the MIND diet , and limited alcohol intake are other important ways to promote good brain health. Getting good sleep at night is another important component of brain health. This includes maintaining a normal sleep/wake cycle, practicing good sleep hygiene and recognizing and treating sleep disorders. Staying socially active and engaged in enjoyable, mentally stimulating activities helps to promote good mental health. Other illnesses that can affect the brain, such as diabetes, high blood pressure and high cholesterol, should also be treated if present.

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How Can I Improve My Memory After Brain Injury

While there is no specific or instant cure for memory problems, recovery can naturally occur as the brain heals over time. It may also be that some of the other effects of your brain injury, such as fatigue or problems with concentration, interfere with the ability to focus on information to learn it in the first place, so addressing these problems may in turn help to improve your memory.

Rehearsing information or practising routines can help with remembering information. A family member or friend could help by testing you with successively longer gaps between you rehearsing the information and being tested on it each time.

Errorless learning is a memory training technique that research has found to be effective for learning specific processes or sequences of things. It entails learning the information correctly the first time round so that mistakes are not accidentally learnt first. Someone can help you with learning and practicing the information correctly the first time round and gradually reducing the amount of help given.

Many people with memory problems use external memory aids , to help with remembering information. Research suggests that using technology such as pagers, portable electronic devices, alarms and voice recorders can also be helpful.

Strategies For Coping With Memory Problems

The Difference Between Alzheimers Disease and Dementia

Memory problems can destroy a person’s sense of identity and continuity. The inability to remember events and emotions can leave people without a sense of the passage of time or of their own narrative and progression as a person. This is on top of the everyday practical difficulties with planning and organisation.

There are no easy answers for memory difficulties and it is unrealistic to expect lost function to be regained. However, there are simple, practical steps that can make a huge difference.

Our factsheet Coping with memory problems – practical strategies provides comprehensive strategies in an easily accessible form.

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Areas Of The Brain Affected By Stroke And Symptoms

Below, youll learn about the different parts of the brain that can be impacted by stroke. You will find a short summary of the effects of each type of stroke, and you can click the link in each section to learn more.

The effects of a stroke will vary from person to person, so its best to reference a full list of the secondary effects of stroke to get an even better idea of what to expect after stroke.

Here are the major areas of the brain that can be affectedby stroke:

Trauma And Memory Loss

Memory loss is a frustrating and sometimes scary experience, especially if the memory loss is caused by a traumatic event. Research shows that there is a definite relationship between occurrences of emotional, psychological or physical trauma and memory. Some of this memory loss may be a temporary way to help you cope with the trauma, and some of it may be permanent due to a severe brain injury or disturbing psychological trauma. Knowing how trauma can affect your memory can guide you in choosing an appropriate treatment to help you cope with trauma and heal your memory problems.

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Do Patients With Amnesia Lose Their Motor Skills

Motor skills are nondeclarative. People with amnesia dont lose learned motor skills skills that require coordinated movement of muscles. Just like riding a bike is an old saying that means the learned activity is second nature easy to remember and repeat. In fact, studies by neurologists have proven that people with amnesia learn motor skills at the same rate as healthy individuals.

What Part Of The Brain Is Associated With Memory

Stress and Memory

Brain memory is a complex topic, but we will do our best to break down where memories are stored in the brain by first focusing on two main different types of memory: implicit memory and explicit memory.

So, what part of the brain controls memory? All of its different, interconnected regions work together as the memory part of the brain. They each play their unique role in both memory consolidation and memory recall.

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From Flies To Rodents

A few years later, Hardt found something similar in rats. He was investigating what happens at the synapses of neurons that are involved in long-term memory storage. Researchers know that memories are encoded in the mammalian brain when the strength of the connection between neurons increases. That connection strength is determined by the amount of a particular type of receptor found at the synapse. Known as AMPA receptors, the presence of these structures must be maintained for a memory to remain intact. The problem, Hardt says, is that none of these receptors are stable. They are moved in and out of the synapse constantly and turn over in hours or days.

Hardts lab showed that a dedicated mechanism continuously promotes the expression of AMPA receptors at synapses. Yet some memories are still forgotten. Hardt proposed that AMPA receptors can also be removed, which suggests that forgetting is an active process. If that were true, then preventing the removal of AMPA receptors should prevent forgetting. When Hardt and his colleagues blocked the mechanism behind AMPA-receptor removal in the hippocampi of rats, as expected, they found that the rats were prevented from forgetting the locations of objects. To forget certain things, it seemed that the rat brain had to proactively destroy connections at the synapse. Forgetting, Hardt says, is not a failure of memory, but a function of it.

The Process Of Memory Consolidation

Memory consolidation is the brains ability to process events and turn them into memories.

When certain neurotransmitters are present in the brain, they enable the nerve cells to communicate with one another via synaptic connections. Once two neurons fire together more than once, they are more likely to fire together again . Once a message has been thoroughly communicated, you have memory consolidation.

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Key Biological Processes In The Brain

Most neurons have three basic parts: a cell body, multiple dendrites, and an axon.

  • The cell body contains the nucleus, which houses the genetic blueprint that directs and regulates the cells activities.
  • Dendrites are branch-like structures that extend from the cell body and collect information from other neurons.
  • The axon is a cable-like structure at the end of the cell body opposite the dendrites and transmits messages to other neurons.

The function and survival of neurons depend on several key biological processes:

Neurons are a major player in the central nervous system, but other cell types are also key to healthy brain function. In fact, glial cells are by far the most numerous cells in the brain, outnumbering neurons by about 10 to 1. These cells, which come in various formssuch as microglia, astrocytes, and oligodendrocytessurround and support the function and healthy of neurons. For example, microglia protect neurons from physical and chemical damage and are responsible for clearing foreign substances and cellular debris from the brain. To carry out these functions, glial cells often collaborate with blood vessels in the brain. Together, glial and blood vessel cells regulate the delicate balance within the brain to ensure that it functions at its best.

Loss Of Neuronal Connections And Cell Death

Brain Health &  Dementia

In Alzheimers disease, as neurons are injured and die throughout the brain, connections between networks of neurons may break down, and many brain regions begin to shrink. By the final stages of Alzheimers, this processcalled brain atrophyis widespread, causing significant loss of brain volume.

Learn more about Alzheimer’s disease from MedlinePlus.

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Causes Of Vascular Dementia

Vascular dementia is caused by reduced blood flow to the brain, which damages and eventually kills brain cells.

This can happen as a result of:

  • narrowing and blockage of the small blood vessels inside the brain
  • a single stroke, where the blood supply to part of the brain is suddenly cut off
  • lots of “mini strokes” that cause tiny but widespread damage to the brain

Not everyone who has a stroke will go on to develop vascular dementia.

Read more about vascular dementia.

Signs Of A Memory Problem

A person might or might not be able to notice signs of his or her own memory problem. If someone has suffered a brain injury, doctors, nurses, and family members will be on the alert for signs of trouble.

Someone who has a memory problem will be unable to remember important things for varying lengths of time. The more severe the illness or injury, the longer the memory loss is likely to last. Some people forget just the moments right before and after an injury, which is not unusual with a concussion. Sometimes, these memories come back.

More significant problems with memory, such as in Alzheimer’s disease, might make it hard to remember what happened days, weeks, months, or even years ago, and it can be difficult to learn and remember new things.

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When To See A Doctor

People with warning signs should see a doctor. They should see a doctor immediately if they

  • Cannot pay attention and seem very confused, unfocused, and disorientedâsymptoms that suggest delirium

  • Feel depressed and are thinking of hurting themselves

  • Have other symptoms that suggest a problem with the nervous system, such as headaches, difficulty using or understanding language, sluggishness, vision problems, or dizziness

People who do not have warning signs but are concerned about their memory or have difficulty doing basic daily activities should call their doctor. The doctor can determine how quickly they need to be seen based on other symptoms they have and the severity of the symptoms.

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