A report on Amnesia
Deficit in memory caused by brain damage or disease, but it can also be caused temporarily by the use of various sedatives and hypnotic drugs.
- Amnesia34 related topics with Alpha
Retrograde amnesia
10 linksLoss of memory-access to events that occurred or information that was learned in the past.
Loss of memory-access to events that occurred or information that was learned in the past.
This would resemble generic amnesia.
Anterograde amnesia
9 linksIn neurology, anterograde amnesia is a loss of the ability to create new memories after the event that caused amnesia, leading to a partial or complete inability to recall the recent past, while long-term memories from before the event remain intact.
Memory
6 linksFaculty of the mind by which data or information is encoded, stored, and retrieved when needed.
Faculty of the mind by which data or information is encoded, stored, and retrieved when needed.
Memory loss is usually described as forgetfulness or amnesia.
Long-term memory
7 linksStage of the Atkinson–Shiffrin memory model in which informative knowledge is held indefinitely.
Stage of the Atkinson–Shiffrin memory model in which informative knowledge is held indefinitely.
Research by Meulemans and Van der Linden (2003) found that amnesiac patients with damage to the medial temporal lobe performed more poorly on explicit learning tests than did healthy controls.
Hippocampus
6 linksMajor component of the brain of humans and other vertebrates.
Major component of the brain of humans and other vertebrates.
It is apparent that complete amnesia occurs only when both the hippocampus and the parahippocampus are damaged.
Short-term memory
3 linksCapacity for holding a small amount of information in an active, readily available state for a short interval.
Capacity for holding a small amount of information in an active, readily available state for a short interval.
Patients with this form of amnesia have an intact ability to retain small amounts of information over short time scales (up to 30 seconds) but have little ability to form longer-term memories (illustrated by patient HM).
Korsakoff syndrome
3 linksKorsakoff syndrome (KS) is a disorder of the central nervous system characterized by amnesia, deficits in explicit memory, and confabulation.
Episodic memory
6 linksMemory of everyday events that can be explicitly stated or conjured.
Memory of everyday events that can be explicitly stated or conjured.
The label "amnesia" is most often given to patients with deficits in episodic memory.
Psychogenic amnesia
2 linksMemory disorder characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years to decades.
Memory disorder characterized by sudden retrograde episodic memory loss, said to occur for a period of time ranging from hours to years to decades.
Psychogenic amnesia is distinguished from organic amnesia in that it is supposed to result from a nonorganic cause: no structural brain damage or brain lesion should be evident but some form of psychological stress should precipitate the amnesia, however psychogenic amnesia as a memory disorder is controversial.
Post-traumatic amnesia
2 linksState of confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is disoriented and unable to remember events that occur after the injury.
State of confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is disoriented and unable to remember events that occur after the injury.
There are two types of amnesia: retrograde amnesia (loss of memories that were formed shortly before the injury) and anterograde amnesia (problems with creating new memories after the injury has taken place).