Procedural Memory: Flashcards
Procedural Memory Ex
e. g. Rat in an “F” Maze (learns to run from base of F, turn right into one of two perpendicular arms for reward)
- Condition A = Go forward as long as floor is rough, then turn right (Requires Sensorially-Cued Procedure)
- Condition B = Go to same arm where rewarded on last trial (Requires Rule-Based Spatial)
Cerebellum damage
interferes with performance in Cond A (Procedural Memory) but not Cond B,
while Hippocampus damage interferes with perf in Cond B (Declarative/Spatial Memory) but not on Cond A
Cerebellum and Classical Conditioning involving Procedural Memory EX
- e.g. Rabbits: Tone (Conditioned Stim) + Puff of air at eye (Neg Reinf) =>Blink; Later Tone Alone=>Blink
Damage to (or temporary suppression e.g. via cooling of) Lateral Interpositus nucleus (LIP) of Cerebellum
=> Even with extensive conditioning, rabbits never learn Tone + Blink association
- Damage to or suppression of Red Nucleus of Midbrain’s Tegmentum (i.e. Motor site that LIP projects to)
=> Rabbit not show blink response until suppression wears off, then does show response
- So learned/stored in Cerebellum but not expressed without Midbrain participation
Striatum (Caudate Nucleus & Putamen, input circuits of Basal Ganglia) also implicated in Procedural Memory
- NMDA-Antagonist injected into Striatum interferes with rat recall of Cued Procedures
Basal Ganglia involved in
selecting/integrating/ordering motor activity
Amygdala
(well connected to Basal Ganglia) in both Procedural and Declarative memory!
Requires Procedural Memory
take in sensory info until input changes, and then change their action
e.g. go forward if floor is rough then turn right
Requires Spatial + Declarative
go to same arm reinforced on last trial
have to remember which arm and where and there’s a rule (Declarative) - relates in humans to things we can put into words: “go forward and then left”
