Dynamics of error-related activity in deterministic learning - an EEG and fMRI study

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Learning and error monitoring are linked, with distinct anterior cingulate cortex (ACC) dynamics observed in probabilistic learning.
• Existing theories suggest feedback-related ACC activity should also increase during deterministic learning, but this remains unconfirmed.

Purpose of the Study:

• To investigate ACC activity during deterministic learning using the Paired Associate Deterministic Learning task.
• To confirm whether feedback-related ACC activity increases in deterministic learning scenarios.

Main Methods:

• Utilized both electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) with a Paired Associate Deterministic Learning task.
• Analyzed electroencephalography (EEG) data for error-related negativity (ERN) and feedback negativity (FN) amplitudes.
• Analyzed functional magnetic resonance imaging (fMRI) data for response-related and feedback-related ACC activity.

Main Results:

• EEG analysis revealed a significant increase in the amplitude of both ERN and FN.
• fMRI results demonstrated increased response-related and feedback-related ACC activity during erroneous trials.
• Findings align with theories linking ACC activity to discrepancies between expected and actual outcomes.

Conclusions:

• Deterministic learning involves increased ACC activity, signaling expectancy violations.
• Both internal (response-related) and external (feedback-related) evaluation systems signal expectancy violations during deterministic learning.