2022
DOI: 10.1101/2022.08.21.504635
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Model based control can give rise to devaluation insensitive choice

Abstract: Influential recent work aims to ground psychiatric dysfunction in the brain's basic computational mechanisms. For instance, compulsive symptoms as in drug abuse have been argued to arise from an imbalance between multiple systems for instrumental learning. Computational models suggest that such multiplicity arises because the brain adaptively simplifies laborious "model-based" deliberation by sometimes relying on a cheaper, more habitual "model-free" shortcut. Support for this account comes in part from failur… Show more

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“…These behavioral tools have been invaluable to gain a deeper understanding of the behavioral, neural, and theoretical basis of the multiple systems controlling decision-making. Nevertheless, the extent to which discrete measures of sensitivity to outcome devaluation sufficiently distinguishes goal-directed from habitual control is still under scrutiny 50,51 as sensitivity to outcome devaluation can also be triggered by unexpected cues 52 and in situations where habits are expected to form 53 . More broadly, the current methodologies remain fundamentally limited in their temporal resolution and individual specificity, limiting the assessment of nature, timing, and properties of habit formation 19,50 in individual animals.…”
Section: Discussionmentioning
confidence: 99%
“…These behavioral tools have been invaluable to gain a deeper understanding of the behavioral, neural, and theoretical basis of the multiple systems controlling decision-making. Nevertheless, the extent to which discrete measures of sensitivity to outcome devaluation sufficiently distinguishes goal-directed from habitual control is still under scrutiny 50,51 as sensitivity to outcome devaluation can also be triggered by unexpected cues 52 and in situations where habits are expected to form 53 . More broadly, the current methodologies remain fundamentally limited in their temporal resolution and individual specificity, limiting the assessment of nature, timing, and properties of habit formation 19,50 in individual animals.…”
Section: Discussionmentioning
confidence: 99%