Dataset from: Lapses in perceptual decisions reflect exploration.

Pisupati, S., Chartarifsky, L., Khanal, A., Churchland, A. K. (February 2020) Dataset from: Lapses in perceptual decisions reflect exploration. [Dataset]

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URL: https://doi.org/10.14224/1.38957

Abstract

Perceptual decision-makers often display a constant rate of errors independent of evidence strength. These “lapses” are treated as a nuisance arising from noise tangential to the decision, e.g. inattention or motor errors. Here, we use a multisensory decision task in rats to demonstrate that these explanations cannot account for lapses’ stimulus dependence. We propose a novel explanation: lapses reflect a strategic trade-off between exploiting known rewarding actions and exploring uncertain ones. We tested the model’s predictions by selectively manipulating one action’s reward magnitude or probability. As uniquely predicted by this model, changes were restricted to lapses associated with that action. Finally, we show that lapses are a powerful tool for assigning decision-related computations to neural structures based on disruption experiments (here, posterior striatum and secondary motor cortex). These results suggest that lapses reflect an integral component of decision-making and are informative about action values in normal and disrupted brain states.

Item Type: Dataset
Additional Information: Full citation of corresponding paper: Pisupati, S*., Chartarifsky-Lynn, L*., Khanal, A., & Churchland, A. K. (2019). Lapses in perceptual decisions reflect exploration. bioRxiv, 613828.
Subjects: organism description > animal behavior > decision making
organs, tissues, organelles, cell types and functions > tissues types and functions > motor cortex
organism description > animal behavior > perception
organism description > animal > mammal > rodent > rat
organism description > animal > mammal > rodent > rat
organs, tissues, organelles, cell types and functions > tissues types and functions > striatum
CSHL Authors:
Communities: CSHL labs > Churchland lab
Watson School
Depositing User: Adrian Gomez
Date: 5 February 2020
Date Deposited: 05 Feb 2020 19:19
Last Modified: 05 Feb 2020 19:49
Related URLs:
URI: https://repository.cshl.edu/id/eprint/38957

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