Neuropsychology Of Memory Flashcards
What was the issue with HM?
Intact short term memory but unable to form new long term memories
Amnesia can be due to?
Injury/disease- organic
Substance misuse- drug induced
Psychological traumatic event- dissociative amnesia
Ribots law?
The most recently acquired memories are the most vulnerable to disruption from brain damage, temporal gradient seen in retrograde
All declarative memories are encoded where?
Medial temporal lobe
Anterograde amnesia would typically affect?
New episodic memories
Retrograde amnesia affects what type of memory?
Episodic
Memory consolidation theory?
- Initial encoding- new info processed via sensory neocortex to hippocampus
- Consolidation- neocortex receives information from hippocampus for permanent storage of info
Where are episodic memories in retrograde amnesia stored?
Neocortex
Nondeclarative implicit memory types?
Procedural memory
Perceptual representation system- recognising and naming objects based on prior experience
Classical conditioning
Nonassociative- habituation ( decrease in response after repeated exposure) sensitisation
Where is procedural memory stored?
Basal ganglia
Where is semantic memory stored?
Lateral and inferior temporal lobes
Errorless route learning?
Providing support to avoid mistakes during acquisition, because amnesia patients can’t correct their own errors as they don’t have episodic memory
Wernicke korsakoff?
Wernickes-
- Acute confusion
- Opthalmoplegia/ nystagmus
- Ataxia
Caused by thiamine deficiency
Korsakoffs- alcohol related
Causes cognitive problems
Cognitive dysfunction in WKS?
Declarative- semantic and episodic PaST and present
Confabulation
Spontaneous confabulation?
Persistent and unprovoked outpouring or erroneous memories,
