What type of dyskinesia involves slow, writing, purposeless movements?

• A. Chorea
• B. Athetosis
• C. Myoclonus
• D. Tics

Answer: (B)

Athetosis is characterized by slow, writhing, and purposeless movements, often affecting the hands and fingers. This type of dyskinesia is frequently seen in individuals with neurological conditions such as cerebral palsy, where the involuntary movements can interfere with voluntary actions, leading to difficulties in performing tasks that require fine motor control.

The defining feature of athetosis is its fluid, continuous motion, which contrasts with other types of dyskinesia that may present with different characteristics. For instance, chorea is marked by brief, irregular, and unpredictable movements. Myoclonus refers to sudden, brief jerks or spasms in muscles, often resembling shocks. Tics are repetitive, sudden movements or sounds that are often controlled to some extent by the individual. Understanding these distinctions is crucial for diagnosing and managing motor disorders effectively.