Which statement describes how training affects components of response time?

Which statement describes how training affects components of response time?

• A. Training improves reaction time more than movement time.
• B. Training improves movement time but not reaction time.
• C. Training worsens movement time.
• D. Training has no effect on either.

Answer: (B)

Training primarily makes the motor execution more efficient, so the time taken to complete the movement decreases as skill and automaticity improve. The overall response time is sum of reaction time (from stimulus to movement onset) and movement time (from onset to task completion). Practice tends to reduce movement time because you learn the most efficient trajectory, force, and timing for the action, leading to faster, smoother performance. Reaction time, which reflects sensory processing and decision-making to initiate the response, is less consistently shortened by repetitive training, so it doesn’t improve as reliably. Therefore, the best statement is that training improves movement time but not reaction time.

Training primarily makes the motor execution more efficient, so the time taken to complete the movement decreases as skill and automaticity improve. The overall response time is sum of reaction time (from stimulus to movement onset) and movement time (from onset to task completion). Practice tends to reduce movement time because you learn the most efficient trajectory, force, and timing for the action, leading to faster, smoother performance. Reaction time, which reflects sensory processing and decision-making to initiate the response, is less consistently shortened by repetitive training, so it doesn’t improve as reliably. Therefore, the best statement is that training improves movement time but not reaction time.