Which of the following can be a symptom of traumatic brain injury (TBI)?

Clouded thinking is a common symptom of traumatic brain injury (TBI) due to the impact of trauma on the brain's functioning. When an individual experiences TBI, it can lead to various cognitive impairments, including difficulties in processing information, making decisions, and sustaining attention. The injury disrupts normal brain activities, which can manifest as confusion, inability to think clearly, and problems with memory and concentration.

Options reflecting enhanced reflexes, improved memory, or increased concentration are generally not associated with TBI. While physical reflexes can sometimes vary depending on the severity and type of brain injury, they typically do not enhance as a result of trauma. In fact, memory and concentration often deteriorate following a TBI. Thus, recognizing clouded thinking as a symptom helps in understanding the complexities of cognitive deficits resulting from such injuries.