Final answer:
Focal motor signs would not be associated with a concussion. Concussion symptoms are more generalized and do not usually involve localized weakness or movement problems in specific muscles.
Step-by-step explanation:
The symptom that would not be associated with a concussion is focal motor signs. Concussions, which are the most common type of brain injury, often result from sports-related incidents. They may lead to symptoms such as a brief loss of consciousness, headache, and confusion or irritability. However, focal motor signs are more characteristic of other neurological conditions, such as a stroke, where specific areas of the brain are affected leading to localized weakness or movement problems in particular muscles or muscle groups.
Concussions are typically associated with diffuse symptoms that are the result of a general shaking or injury to the brain, not localized damage. Unlike focal motor signs, concussive symptoms do not indicate damage to a particular brain area that controls specific functions, but rather a temporary dysfunction of neural activity across a wider area.