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A Conflict Model of Reward-seeking Behavior in Male Rats

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Published on: February 20, 2019

Neural dynamics underlying the illusion of control during reward processing.

Ya Zheng^1,2, Canming Yang³, Huiping Jiang⁴

¹Department of Psychology, Guangzhou University, Guangzhou 510006, China.

Social Cognitive and Affective Neuroscience

|September 20, 2024

Summary

People overestimate their control over random events, a bias linked to altered brain activity in reward anticipation, prediction errors, and motivation. This study reveals how the illusion of control impacts our reward system dynamics.

Keywords:

ERPs illusion of control neural dynamics reward processing

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Area of Science:

Neuroscience
Behavioral Economics
Cognitive Psychology

Background:

The illusion of control is a cognitive bias where individuals overestimate their influence on random events.
This bias can lead to inaccurate reward probability estimations, impacting decision-making.
Understanding the neural underpinnings of this bias is crucial for explaining human behavior in uncertain environments.

Purpose of the Study:

To investigate how the illusion of control modulates the brain's reward system.
To explore the neural dynamics associated with this behavioral bias.
To provide a mechanistic understanding of the illusion of control through reward system alterations.

Main Methods:

Participants performed a behavioral task involving choices with random outcomes.
An event-related potential (ERP) study was conducted during the task.
Neural signals, including stimulus-preceding negativity, reward positivity, and P300, were analyzed.

Main Results:

Behavioral data confirmed a classical illusion of control, with participants valuing self-chosen outcomes higher than random ones.
ERP analysis showed reduced reward anticipation (stimulus-preceding negativity).
Diminished positive prediction error signals (reward positivity) and enhanced motivational salience (P300) were observed.

Conclusions:

The illusion of control is associated with specific alterations in neural reward processing.
Neural dynamics reveal reduced anticipation, prediction error signaling, and increased motivational salience.
These findings offer a mechanistic explanation for the illusion of control within the framework of reward system modulation.