Cognitive Reflection Test (CRT) Practice

Which symptom is NOT typically associated with Parkinson disease?

1. Non-intentional tremors

2. Cogwheel rigidity

3. Increased reflexes

4. Masklike facial expression

The correct answer is: Increased reflexes

In Parkinson’s disease, the symptom most commonly observed is the presence of movement disorders, which includes tremors, rigidity, and bradykinesia (slowness of movement). Non-intentional tremors, or resting tremors, are characteristic of the condition and occur when the muscles are at rest. Cogwheel rigidity refers to a specific type of muscle stiffness that can present when a person is passively moved, and a masklike facial expression, also known as "hypomimia," is observable due to the reduced ability to express emotions. In contrast, increased reflexes are not typical in Parkinson’s disease. Instead, individuals with Parkinson's often experience diminished or absent reflexes. This is due to the nature of the disease, which affects the brain and the nervous system's functioning, leading to decreased motor control and reflex responses. Therefore, the option addressing increased reflexes stands out as a symptom that does not align with the common manifestations of Parkinson's disease.