Spontaneous eye blink rate (EBR) predicts poor performance in high-stakes situations

Area of Science:

• Neuroscience
• Cognitive Psychology
• Dopamine System Functioning

Background:

• The phenomenon of 'choking under pressure' is recognized, but its biological basis remains unclear.
• Individual differences may influence performance decrements in high-stakes situations.

Purpose of the Study:

• To investigate the biological underpinnings of choking under pressure.
• To examine if baseline eye blink rate (EBR) and anterior hemispheric asymmetry predict poor performance in high-incentive conditions.

Main Methods:

• Participants completed a switch task under both control and incentive conditions.
• Baseline eye blink rate (EBR), reflecting dopamine system functioning, was measured.
• Baseline anterior hemispheric asymmetry, indicating processing styles, was assessed.

Main Results:

• Individuals with low baseline EBR improved performance under incentive conditions.
• Individuals with high baseline EBR did not show performance improvement with incentives.
• Anterior hemispheric asymmetry did not predict performance outcomes.

Conclusions:

• High baseline eye blink rate (EBR) may be linked to the inability to enhance performance under pressure.
• Findings suggest that the neuromodulatory effects of dopamine may contribute to suboptimal performance in high-stakes scenarios.
• Baseline dopamine system functioning, as indicated by EBR, is a potential predictor of choking under pressure.