Related Experiment Video
Updated: Apr 16, 2026
09:43
The 5-Choice Serial Reaction Time Task: A Task of Attention and Impulse Control for Rodents
Published on: August 10, 2014
47.3K
Sustained attention is associated with error processing impairment: evidence from mental fatigue study in four-choice
Yi Xiao1, Feng Ma2, Yixuan Lv3
1National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing, China.
Plos One
|March 11, 2015
Summary
Mental fatigue impairs error processing, evidenced by reduced error-related negativity (ERN). Sustained attention plays a crucial role in this process, with decreased attention linked to poorer error detection.
Area of Science:
- Cognitive Neuroscience
- Psychophysiology
Background:
- Attention is critical for effective error processing.
- Limited research exists on the relationship between sustained attention and error processing.
- Error-related negativity (ERN) is a key electrophysiological marker of error processing.
Purpose of the Study:
- To investigate the impact of mental fatigue on ERN.
- To examine the role of sustained attention in modulating ERN.
- To determine if reduced attention mediates the effect of fatigue on error processing.
Main Methods:
- A fatigue manipulation involving a psychomotor vigilance test (PVT) was employed.
- Participants were divided into fatigue and control groups.
- Event-related potentials (ERPs), including ERN, were recorded during a four-choice reaction time task.
- Subjective fatigue and attention levels were assessed via questionnaires.
Main Results:
- ERN amplitudes were significantly reduced in the mental fatigue group compared to the control group.
- ERN amplitudes showed significant associations with subjective attention and fatigue ratings.
- Specific electrode sites (Fz, FC1, Cz, FC2) demonstrated significant effects.
Conclusions:
- Mental fatigue leads to impaired error processing, indicated by diminished ERN.
- Sustained attention is intrinsically linked to error processing efficiency.
- Decreased sustained attention is a likely mechanism underlying attentional deficits in error processing due to fatigue.
