A neural basis of choking under pressure

Area of Science:

• Neuroscience
• Behavioral Science
• Primate Studies

Background:

• Performance often improves with incentives, but excessive rewards can lead to choking under pressure.
• Understanding the neural basis of choking under pressure is crucial for optimizing performance in high-stakes situations.

Purpose of the Study:

• To investigate the neural mechanisms underlying choking under pressure during a challenging motor task.
• To identify how reward magnitude influences neural activity and motor performance.

Main Methods:

• Rhesus monkeys performed a reaching task with varying reward magnitudes.
• Neural activity in the motor cortex (MC) was recorded during movement preparation and execution.
• Performance metrics were analyzed in relation to reward size and neural activity patterns.

Main Results:

• Monkeys underperformed when a large "jackpot" reward was offered, indicating choking under pressure.
• Increased reward magnitude led to heightened neural activity during movement preparation.
• Neural activity during preparation exceeded an optimal performance zone as reward increased.

Conclusions:

• Neural signals related to reward and motor preparation interact within the motor cortex.
• This interaction can explain the phenomenon of choking under pressure, where high incentives impair performance.