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Related Concept Videos

Amnesia01:13

Amnesia

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...
Dissociative Amnesia01:21

Dissociative Amnesia

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...
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

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 playing an...
Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
Traumatic Memory01:20

Traumatic Memory

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 remembers mundane...

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Related Experiment Video

Updated: May 29, 2026

A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers
08:05

A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers

Published on: January 5, 2018

Transient global amnesia: a brief review and update.

Howard S Kirshner1

  • 1Department of Neurology, Vanderbilt University Medical Center, Nashville, TN 37232, USA. howard.kirshner@vanderbilt.edu

Current Neurology and Neuroscience Reports
|September 7, 2011
PubMed
Summary

Transient global amnesia (TGA) is a temporary memory loss syndrome with an unknown cause. This review discusses known triggers, pathogenesis theories, and management strategies for TGA.

Area of Science:

  • Neurology
  • Neuroscience
  • Memory Disorders

Background:

  • Transient global amnesia (TGA) is characterized by sudden, temporary memory loss.
  • The exact cause of TGA remains unknown despite various proposed theories.
  • Understanding TGA is crucial for accurate diagnosis and patient management.

Purpose of the Study:

  • To review the known causes of transient amnesia.
  • To explore current theories on the pathogenesis of TGA.
  • To outline recommended evaluation and treatment approaches for TGA.

Main Methods:

  • Literature review of existing studies on transient amnesia and TGA.
  • Synthesis of information regarding TGA etiology and pathogenesis.
  • Discussion of clinical guidelines for TGA evaluation and treatment.

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Last Updated: May 29, 2026

A Prediction Error-driven Retrieval Procedure for Destabilizing and Rewriting Maladaptive Reward Memories in Hazardous Drinkers
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Transcranial Direct Current Stimulation (tDCS) for Memory Enhancement
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Transcranial Direct Current Stimulation (tDCS) for Memory Enhancement

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Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
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Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

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Main Results:

  • Multiple potential triggers for transient amnesia are identified.
  • Several hypotheses regarding the underlying mechanisms of TGA are presented.
  • Standard diagnostic and therapeutic protocols for TGA are outlined.

Conclusions:

  • While TGA's etiology is not fully understood, various factors can precipitate transient amnesia.
  • Further research into TGA pathogenesis may elucidate its mechanisms.
  • Current management focuses on diagnosis confirmation and supportive care.