Effects of training on the arithmetic problem-size effect: an event-related potential study

Area of Science:

• Cognitive Neuroscience
• Educational Psychology
• Cognitive Psychology

Background:

• The problem-size effect in arithmetic is linked to a late positive slow wave.
• This effect is hypothesized to stem from differential frequency of problem use.
• Understanding the impact of practice on this neural component is crucial.

Purpose of the Study:

• To investigate how arithmetic calculation training affects problem-solution associative strength.
• To determine if practice reduces the problem-size effect.
• To examine the neural underpinnings of practice effects on arithmetic problem-solving.

Main Methods:

• Utilized event-related brain potentials (ERPs) to measure neural activity.
• Employed an equality verification task with varying problem sizes (small, medium, large).
• Conducted two training sessions to assess the impact of practice.

Main Results:

• The amplitude of the late positive slow wave increased with problem size.
• Practice led to a decrease in the amplitude of this positive slow wave.
• Results suggest practice modulates the neural correlates of the problem-size effect.

Conclusions:

• Arithmetic training enhances associative strength between problems and solutions.
• Practice is a significant factor influencing the problem-size effect.
• Event-related brain potentials provide insights into the learning and practice effects in arithmetic.