5- Procedural LTM Flashcards
2 disorders of the basal ganglia
Huntington’s disease and Parkinson’s disease
Cause of Huntington’s disease
Inherited
Location of atrophy in Huntington’s disease
Basal ganglia
Early symptoms of Huntington’s disease
Difficulty concentrating and memory lapses
Later symptoms of Huntington’s disease
Involuntary jerking
Cause of Parkinson’s disease
Combination of genetic and environmental factors
Location of atrophy causing PD
Substantia nigra
Physical symptoms of PD
Rigor (muscle stiffness), tremor, bradykinesia (slow movement)
Cognitive symptoms of PD
Memory problems and dementia
What did PD patients show in the ‘weather prediction’ task?
Impaired procedural memory, normal declarative memory
What did amnesiac patients show in the ‘weather prediction’ task?
Slow procedural learning, impaired declarative memory
What is indicated by a ‘double dissociation’ between procedural memory and declarative memory?
Neural bases of declarative and procedural memory are mutually exclusive
What was the impact on episodic memory and procedural memory in anterograde amnesia and what did this show?
Impaired episodic memory and intact procedural memory
Showed dissociation between episodic (declarative) and procedural memory systems
What does initial involvement of the hippocampus in the ‘weather prediction task’ suggest?
Episodic/explicit task component
What does later involvement of the striatum in the ‘weather prediction task’ suggest?
Implicit internalisation of task
