What are the characteristics of intention tremor?

• A. Present at rest and improves with movement
• B. Worsens during purposeful movement to a target
• C. Consistent throughout all activities
• D. Only observed during sleep

Answer: (B)

Intention tremor is characterized by an increase in tremor severity during purposeful movements, particularly when a person is trying to reach for a target. This type of tremor is typically seen in conditions involving cerebellar dysfunction, where the finer adjustments needed for smooth, controlled movement are impaired. As a person approaches their target, they may experience a noticeable tremor that exacerbates the closer they get to it, as they struggle to coordinate their movements effectively.

In contrast, a tremor that is present at rest and improves with movement would suggest a different type of tremor, usually associated with conditions like Parkinson's disease. Tremors that are consistent throughout all activities or only evident during sleep would not capture the essence of intention tremor, which is predominantly linked to motor actions and varies with the level of voluntary movement. Thus, the correct identification of intention tremor as worsening during purposeful movements allows for better understanding and differentiation from other types of tremors.