Which term is used to describe the loss of coordination and movement control associated with neurodegeneration?

Ataxia refers specifically to a lack of coordination and control over voluntary movements, often resulting from damage to the cerebellum or pathways involved in muscular coordination and balance. In the context of neurodegenerative diseases, ataxia manifests as various impairments in gait, posture, and overall movement, making it a key term when discussing the effects of neurodegeneration on motor skills.

In contrast, hypotonia refers to reduced muscle tone, which can lead to weakness but does not specifically denote loss of coordination. Neurogenesis is the process by which new neurons are formed in the brain, and neural plasticity describes the brain's ability to reorganize itself by forming new neural connections throughout life. Neither of these terms directly addresses movement control or coordination issues associated with neurodegeneration. Thus, ataxia is the most appropriate term to describe the specific loss of coordination and movement control linked to neurodegenerative conditions.