Changing the current value of an outcome after instrumental training, then testing the associated action. Testing without delivering that outcome helps distinguish immediate use of changed outcome value from new direct action reinforcement. Sensitivity and insensitivity provide operational tests for goal-directed and habitual control under stated conditions.[ref]
Lesions of dorsolateral striatum preserve outcome expectancy but disrupt habit formation in instrumental learning by Henry H. Yin and others. Abstract, experiments 1–2; pp. 181–189: interval training, devaluation, extinction test and lesion controls
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