The Feedback-Related Negativity and the P300 Brain Potential Are Sensitive to Price Expectation Violations in a...

Area of Science:

• Neuroscience
• Consumer Behavior
• Cognitive Psychology

Background:

• Consumer buying behavior is significantly influenced by price expectations and deviations from them.
• The underlying neural mechanisms driving this phenomenon remain largely unexplored.

Purpose of the Study:

• To investigate the neural correlates of consumer price expectation violations.
• To determine if brain activity related to prediction errors can predict purchasing decisions.

Main Methods:

• Measured electrical brain activity, specifically the Feedback-Related Negativity (FRN) and feedback-related P300.
• Analyzed the relationship between brain activity, price offer deviations from expectations, and subsequent purchase behavior.

Main Results:

• Both FRN and P300 brain activity patterns were sensitive to price offers lower than expected.
• FRN amplitude predicted subsequent product purchases, driven by sensitivity to positive price expectation violations.

Conclusions:

• Neural ensembles encoding positive prediction errors are crucial for real-life consumer behavior.
• Prediction error models, like Reinforcement Learning Theory, offer a neurobiologically grounded framework for understanding consumer decisions.