Most consistent abnormality is subtle impairments in cognitive function
Attention, concentration, amnesia, memory, processing speed, reaction time, calculation, executive function
Physical signs/symptoms
Headache, dizziness, insomnia, fatigue, uneven gait, nausea/vomiting, blurred vision, seizure
Postconcussive anosmia (affecting taste as well)
Behavioral changes
Irritability, depression, anxiety, sleep disturbances, problems related to school/work, emotional lability, loss of initiative, loneliness, and helplessness
Attention, concentration, amnesia, memory, processing speed, reaction time, calculation, executive function
Headache, dizziness, insomnia, fatigue, uneven gait, nausea/vomiting, blurred vision, seizure
Postconcussive anosmia (affecting taste as well)
Irritability, depression, anxiety, sleep disturbances, problems related to school/work, emotional lability, loss of initiative, loneliness, and helplessness
Mild traumatic brain injury
Traumatic brain injury
Moderate-to-severe traumatic brain injury
Intracranial hemorrhage
Post-concussive syndrome
Traumatic intracerebral hemorrhage
Elevated intracranial pressure
Ischemic stroke