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Updated: Jun 12, 2026

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Operant Protocols for Assessing the Cost-benefit Analysis During Reinforced Decision Making by Rodents

Published on: September 10, 2018

Neurons in the rat anterior cingulate cortex dynamically encode cost-benefit in a spatial decision-making task.

Kristin L Hillman¹, David K Bilkey

¹Department of Psychology, University of Otago, Dunedin, New Zealand.

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience

|June 4, 2010

Summary

The anterior cingulate cortex (ACC) in rats encodes a cost-benefit representation for optimal decision-making. ACC neural activity biases toward economically advantageous options when effort is involved.

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Area of Science:

Neuroscience
Decision-making research
Cognitive neuroscience

Background:

Optimal decision-making relies on assessing costs and benefits.
Anterior cingulate cortex (ACC) lesions impair cost-benefit decisions, but mechanisms are unclear.

Purpose of the Study:

Investigate neural mechanisms of ACC in cost-benefit decision-making.
Determine how ACC neurons represent value and effort.

Main Methods:

Recorded ACC neural activity in freely moving rats during a spatial decision-making task.
Manipulated reward magnitude and cost (barrier) to assess choice behavior.
Analyzed neuronal firing patterns relative to choice options.

Main Results:

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A Fully Automated and Highly Versatile System for Testing Multi-cognitive Functions and Recording Neuronal Activities in Rodents

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Published on: May 3, 2012

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An Automated T-maze Based Apparatus and Protocol for Analyzing Delay- and Effort-based Decision Making in Free Moving Rodents

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ACC neurons showed biased firing toward high-cost, high-reward (HCHR) options when a barrier was present.

This bias adapted to favor the economically advantageous option across task configurations.

ACC activity was minimal and unbiased when only reward magnitude differed (no barrier).

Conclusions:

The ACC encodes a relative, integrated cost-benefit representation.
This representation is biased toward the option with a better effort/outcome ratio.
ACC activity is specifically recruited for decisions requiring reward and effort assessment.