LTM systems Flashcards
Define anterograde amnesia and retrograde amnesia
Antegrade amnesia - inability to form new memories after the injury impaired.
Retrograde amnesia - inability to remember information from before the injury impaired.
Describe patient HM in terms of aspect of memory that was impaired and intact
- removal of hippocampus to treat his epilepsy
- he had catastrophic anterogtade amnesia
- he retained some memories of his childhood but none immediatley before his surgery (retrograde)
-he had normal vocab, working memory was normal, he could learn new tasks using procedural learning
NOT ALL TYPES OF MEMORY RELY ON HIPPOCAMPUS
Define different types of memory systems
EPISODIC = personally experienced events
SEMANTIC = facts and knowledge
PROCEDURAL = learning skills
PRIMING = stimulus exposure affects response to a later stimulus
What are the dissociations between cognitive neuropsychology, cognitive neuroscience and cognitive psychology
COGNITIVE NEUROPSYCHOLOGY = brain injury reuslts in impairment in one system but not the other (double dissociation)
COGNITIVE NEUROSCIENCE = Different systems call upon different pathways
COGNITIVE PSYCHOLOGY = A given variable effects one system but not another system
Describe the dissociation study by Tulving, Schacter, and Stark (1982)
- ppts were told to learn a load of words
- one hr later they did a fragment completion or recognition test on half of those words
- 7 days later they did a fragment completion or recognition test on the remaining half of those words.
Results: for fragment completion people showed similar performances 1hr later and 7 days later, fro recognition task there was a decrease in memory from 1hr to 7 days.
- delay variable effects both tests differently, priming and episodic are independent of one another.
What would be expected if semantic and episodic memory were seperate systems? what evidence would support this idea
Spiers VARGA
what did the work of Blumenthal et al. (2017) contribute? What did they do / test? What were the results? How can their findings be explained?
In their discussion of Retrograde Amnesia what to EK8 mention about retrograde relative to anterograde amnesia? What is the difference between Episodic and Semantic memories when it comes to retrograde amnesia?
What is semantic dementia
loss of semantic memories caused by progressive degeneration of neocortex of the lateral temporal lobes
Why is it said there is a double dissociation between semantic and episodic memory?
Review the evidence about the interdependence of episodic and semantic memory.
What is semanticisation, and what are examples of semanticisation?
A shift from episodic to semantic
What is the difference between recollection and familiarity memory? How is it tested?
What is acquired brain injury
brain damage that occurs as a result of injury or physical trauma to the brain and results in some form of dysfunction
What is traumatic brain injury
movement or penetration of skull
