Source Paper
The Effect of Lesions of the Basolateral Amygdala on Instrumental Conditioning
Bernard W. Balleine, A. Simon Killcross, Anthony Dickinson
Journal of Neuroscience • 2003
Outcome Devaluation Test
Objective: Measurement of instrumental performance following outcome devaluation induced by sensory-specific satiety, assessed in extinction and with contingent reward delivery
Gather these items before starting the experiment. Check off items as you prepare.
Equipment1
Not specified • Not specified • Not specified • Not specified
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Protocol Steps
Instrumental Acquisition Training
Train food-deprived rats to perform instrumental actions (lever pressing or chain pulling) that earn either food pellets or maltodextrin solution
Note: Two different instrumental actions and two different outcomes were used
View evidence from paper
“acquisition of either lever pressing or chain pulling in food-deprived rats whether these actions earned food pellets or a maltodextrin solution”
Outcome Devaluation via Sensory-Specific Satiety
Induce sensory-specific satiety to devalue one of the instrumental outcomes
Note: This creates a devalued outcome condition
View evidence from paper
“outcome devaluation, induced by sensory-specific satiety, on instrumental performance”
Extinction Test
Assess instrumental performance in extinction following outcome devaluation
Note: No reward is delivered during this test phase
View evidence from paper
“assessed in extinction and when reward was delivered contingent on instrumental performance”
Contingent Reward Test
Assess instrumental performance with reward delivered contingent on instrumental performance following outcome devaluation
Note: Reward is delivered based on performance in this test phase
View evidence from paper
“assessed in extinction and when reward was delivered contingent on instrumental performance”