Brain potentials reveal reduced attention and error-processing during a monetary Go/No-Go task in procrastination

Area of Science:

• Cognitive Psychology
• Neuroscience

Background:

• Procrastination is a self-regulatory failure linked to executive dysfunction.
• These executive deficits appear exacerbated in negative motivational contexts.

Purpose of the Study:

• To investigate executive function differences between high and low procrastinators.
• To examine the impact of motivational context (reward vs. punishment) and task difficulty on these differences using event-related potentials (ERPs).

Main Methods:

• High and low academic procrastinators completed a monetary Go/No-Go task.
• Event-related potentials (ERPs), including P300 and error-related negativity (ERN), were recorded.
• Behavioral data (reaction time variability) were analyzed.

Main Results:

• High procrastinators showed reduced P300 and ERN amplitudes, indicating impaired attention and error processing.
• Increased post-error slowing was observed in high procrastinators.
• These ERP effects were consistent across motivational and difficulty conditions.
• Behaviorally, high procrastinators exhibited increased reaction time variability on more difficult tasks, suggesting heightened executive attention deficits.

Conclusions:

• Procrastinators demonstrate specific executive functioning deficits in attention and error processing.
• These difficulties are evident during task execution and may worsen under high cognitive load or demanding conditions.