Final answer:
The incorrect symptom of concussion listed is option B: 'decreased sensitivity to light and sound.' Increased sensitivity is more common. Other symptoms can include disturbed sleep, memory lapses, and balance problems.
Step-by-step explanation:
The question is concerning the symptoms associated with a concussion. Among the options provided, the symptom that is not typically associated with a concussion is decreased sensitivity to light and sound (B). Instead, increased sensitivity is a common symptom. A concussion may result in several signs and symptoms that can include disturbed sleep (A), memory lapses (C), and balance problems (D). These are some of the temporary problems which may arise as a result of the mild brain trauma caused by a concussion.
Victims of a concussion may also experience symptoms like visual disturbances, muscle weakness, impaired coordination and balance, numbness, and impaired cognitive function and memory. It is essential for individuals who have sustained a concussion, particularly athletes, to monitor these symptoms closely and seek medical attention if they persist or worsen, as repeated concussions can lead to more severe health issues.