What is the term for the inability to judge distance?

Dysmetria is the term used to describe the inability to judge distance accurately. It is often associated with neurological conditions, particularly those affecting the cerebellum, which plays a crucial role in coordination and motor control. When someone has dysmetria, they may either overshoot or undershoot their target when trying to reach for an object, indicating a lack of proper spatial judgment.

Understanding dysmetria is essential in clinical practice and rehabilitation as it can significantly impact a patient's ability to perform daily activities, and therefore, addressing it can lead to better functional outcomes. The condition highlights the importance of sensory feedback and motor planning in maintaining effective coordination.

The other terms presented are related to different motor control and neuromuscular issues. Akinesia refers to a lack of movement, asthenia indicates weakness or lack of strength, and ataxia involves a lack of coordination of voluntary movements, but they do not specifically describe problems with judging distance.