The effort-doors task: Examining the temporal dynamics of effort-based reward processing using ERPs.

Area of Science:

• Neuroscience
• Cognitive Psychology
• Psychopathology

Background:

• Aberrant reward processing is central to psychopathology.
• Reward processing involves distinct temporal stages and subcomponents.
• Understanding these dynamics requires measuring effort-based reward processing.

Purpose of the Study:

• To investigate the temporal dynamics of effort-based reward processing.
• To develop behavioral and event-related potential (ERP) measures for effort-based reward processing.
• To examine how effort influences reward anticipation, valuation, and feedback processing.

Main Methods:

• An effort manipulation was added to the
• doors
• reward task.
• Behavioral measures (reaction time, response rate) indexed effort expenditure.
• Event-related potentials (ERPs) measured attention and reward processing stages.

Main Results:

• High effort reduced response rates and slowed responses compared to low effort.
• High effort increased attention to completion cues but decreased reward anticipation and feedback attention.
• Greater response slowing correlated with increased reward devaluation after high effort.

Conclusions:

• The effort-manipulated
• doors
• task reliably measures effort-based reward processing.
• This paradigm can parse the temporal dynamics of anticipatory and consummatory reward processes.
• Findings offer insights into the neural mechanisms underlying effort-based decision-making in psychopathology.