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Lateral orbitofrontal cortex integrates predictive information across multiple cues to guide behavior

Thorsten Kahnt, Ph.D.

Thorsten Kahnt, Ph.D.

Hot Off the Press – October 2023

Published in Current Biology by Thorsten Kahnt, et al.

Summary

Predictive cues typically come in bunches and combining their predictions may improve behavior. Yet, we know almost nothing about how people process reward predictions from multiple cues as well as the brain mechanisms that are involved. Our manuscript describes two experiments that used a novel behavioral task with food odors as biologically meaningful outcomes. The first experiment shows that people leverage predictions from multiple cues to improve behavioral responding, and that this is accompanied by stronger pattern-based fMRI representations of outcome expectations in the lateral orbitofrontal cortex (OFC). Moreover, we show that predictions are combined at the level of reward-specific expectations, rather than some general property like value. The second experiment uses network-targeted TMS to evaluate the causal contribution of the lateral OFC to this process. We show that perturbing activity in the lateral OFC disrupts subjects’ ability to utilize multiple cues to improve behavior, without altering responding to single cues.

Publication Information

Tegelbeckers, Jana; Porter, Daria B.; Voss, Joel L.; Schoenbaum, Geoffrey; Kahnt, Thorsten

Lateral orbitofrontal cortex integrates predictive information across multiple cues to guide behavior Journal Article

In: Current Biology, 2023, ISBN: 0960-9822.

Abstract | Links

@article{Tegelbeckers:aa,
title = {Lateral orbitofrontal cortex integrates predictive information across multiple cues to guide behavior},
author = {Jana Tegelbeckers and Daria B. Porter and Joel L. Voss and Geoffrey Schoenbaum and Thorsten Kahnt},
url = {https://doi.org/10.1016/j.cub.2023.09.033},
doi = {10.1016/j.cub.2023.09.033},
isbn = {0960-9822},
year = {2023},
date = {2023-10-06},
journal = {Current Biology},
publisher = {Elsevier},
abstract = {Individuals are often faced with multiple cues that concurrently predict the same outcome, and combining these predictions may benefit behavior. Previous work has studied the neural basis of decision-making, predominantly using isolated sensory stimuli, and so the mechanisms that allow us to leverage multiple cues remain unclear. In two experiments, we used neuroimaging and network-targeted brain stimulation to probe how the brain integrates outcome predictions to guide adaptive behavior. We identified neural signatures of outcome integration in the lateral orbitofrontal cortex (OFC), where concurrently presented cues evoke stronger pattern-based representations of expected outcomes. Moreover, perturbing lateral OFC network activity impairs subjects? ability to leverage predictions from multiple cues to facilitate responding. Intriguingly, we found similar behavioral and brain mechanisms for reward-predicting cues and for cues predicting the absence of reward. These findings highlight a causal role for the lateral OFC in utilizing outcome predictions from multiple cues to guide behavior.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}

Close

Individuals are often faced with multiple cues that concurrently predict the same outcome, and combining these predictions may benefit behavior. Previous work has studied the neural basis of decision-making, predominantly using isolated sensory stimuli, and so the mechanisms that allow us to leverage multiple cues remain unclear. In two experiments, we used neuroimaging and network-targeted brain stimulation to probe how the brain integrates outcome predictions to guide adaptive behavior. We identified neural signatures of outcome integration in the lateral orbitofrontal cortex (OFC), where concurrently presented cues evoke stronger pattern-based representations of expected outcomes. Moreover, perturbing lateral OFC network activity impairs subjects? ability to leverage predictions from multiple cues to facilitate responding. Intriguingly, we found similar behavioral and brain mechanisms for reward-predicting cues and for cues predicting the absence of reward. These findings highlight a causal role for the lateral OFC in utilizing outcome predictions from multiple cues to guide behavior.

Close

  • https://doi.org/10.1016/j.cub.2023.09.033
  • doi:10.1016/j.cub.2023.09.033

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