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Related Concept Videos

Amnesia01:13

Amnesia

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Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
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Higher Mental Functions of Brain: Learning and Memory01:26

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Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
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Dissociative Amnesia01:21

Dissociative Amnesia

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Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...
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False Memories01:18

False Memories

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False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information...
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Traumatic Memory01:20

Traumatic Memory

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Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
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Forgetting01:21

Forgetting

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Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
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Utilizing the Modified T-Maze to Assess Functional Memory Outcomes After Cardiac Arrest
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[CME - Transient Global Amnesia].

Gregor Thalmann1, Raphaela Hausammann2, Thomas Fehr2

  • 11 Innere Medizin/Kardiologie, Kantonsspital Graubünden.

Praxis
|November 30, 2017
PubMed
Summary
This summary is machine-generated.

Transient global amnesia (TGA) presents diagnostic challenges for clinicians. Key clues include sudden memory loss, absence of focal deficits, and repetitive questioning, necessitating careful patient history.

Keywords:
DWI-MRITGATransient global amnesiaanterograde amnesiahippocampus

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Area of Science:

  • Neurology
  • Neuroscience

Background:

  • Transient global amnesia (TGA) is a neurological disorder characterized by temporary memory loss.
  • Accurate diagnosis of TGA can be challenging for healthcare providers.

Purpose of the Study:

  • To outline the typical clinical presentation of TGA.
  • To discuss pathophysiological hypotheses and diagnostic clues for TGA.
  • To highlight critical differential diagnoses for TGA.

Main Methods:

  • Review of clinical presentation and diagnostic criteria for TGA.
  • Analysis of existing literature on TGA pathophysiology.
  • Comparison of TGA with similar neurological conditions.

Main Results:

  • TGA involves acute memory disturbance with no focal neurological deficits.
  • Repetitive questioning about time and circumstances is a common patient behavior.
  • Patient characteristics can influence diagnostic certainty.

Conclusions:

  • Precise patient and family history is crucial for diagnosing TGA.
  • Understanding diagnostic clues aids in differentiating TGA from other conditions.
  • Further research into TGA pathophysiology may improve diagnostic accuracy.