A report on Anterograde amnesia and Explicit memory
In most cases of anterograde amnesia, patients lose declarative memory, or the recollection of facts, but they retain nondeclarative memory, often called procedural memory.
- Anterograde amnesiaGuy Pearce plays an ex-insurance investigator suffering from severe anterograde amnesia caused by a head injury.
- Explicit memory6 related topics with Alpha
Hippocampus
5 linksMajor component of the brain of humans and other vertebrates.
Major component of the brain of humans and other vertebrates.
People with extensive, bilateral hippocampal damage may experience anterograde amnesia: the inability to form and retain new memories.
Some researchers regard the hippocampus as part of a larger medial temporal lobe memory system responsible for general declarative memory (memories that can be explicitly verbalized – these would include, for example, memory for facts in addition to episodic memory).
Long-term memory
4 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.
Long-term memory is commonly labelled as explicit memory (declarative), as well as episodic memory, semantic memory, autobiographical memory, and implicit memory (procedural memory).
His subsequent total anterograde amnesia and partial retrograde amnesia provided the first evidence for the localization of memory function, and further clarified the differences between declarative and procedural memory.
Memory consolidation
4 linksCategory of processes that stabilize a memory trace after its initial acquisition.
Category of processes that stabilize a memory trace after its initial acquisition.
The second process is systems consolidation, occurring on a much larger scale in the brain, rendering hippocampus-dependent memories independent of the hippocampus over a period of weeks to years.
Systematic studies of anterograde amnesia started to emerge in the 1960s and 1970s.
Episodic memory
4 linksMemory of everyday events that can be explicitly stated or conjured.
Memory of everyday events that can be explicitly stated or conjured.
Along with semantic memory, it comprises the category of explicit memory, one of the two major divisions of long-term memory (the other being implicit memory).
For example, anterograde amnesia, from damage of the medial temporal lobe, is an impairment of declarative memory that affects both episodic and semantic memory operations.
Temporal lobe
3 linksOne of the four major lobes of the cerebral cortex in the brain of mammals.
One of the four major lobes of the cerebral cortex in the brain of mammals.
Declarative (denotative) or explicit memory is conscious memory divided into semantic memory (facts) and episodic memory (events).
The medial temporal lobes include the hippocampi, which are essential for memory storage, therefore damage to this area can result in impairment in new memory formation leading to permanent or temporary anterograde amnesia.
Henry Molaison
2 linksAmerican who had a bilateral medial temporal lobectomy to surgically resect the anterior two thirds of his hippocampi, parahippocampal cortices, entorhinal cortices, piriform cortices, and amygdalae in an attempt to cure his epilepsy.
American who had a bilateral medial temporal lobectomy to surgically resect the anterior two thirds of his hippocampi, parahippocampal cortices, entorhinal cortices, piriform cortices, and amygdalae in an attempt to cure his epilepsy.
After the surgery, which was partially successful in controlling his seizures, Molaison developed severe anterograde amnesia: although his working memory and procedural memory were intact, he could not commit new events to his explicit memory.