NINDS CDE Notice of Copyright
Neurobehavioral Symptom Inventory (NSI)
The instrument is freely available here: Neurobehavioral Symptom Inventory.
Supplemental: Unruptured Cerebral Aneurysms and Subarachnoid Hemorrhage (SAH) and Traumatic Brain Injury (TBI)
Short Description of Instrument
The severity of each symptom on the Neurobehavioral Symptom Inventory (NSI) is measured using a 5-item scale (0-none to 4-very severe) that asks patients to indicate the extent to which each symptom has disturbed them in the previous 2 weeks. The NSI total score is the sum of severity ratings of the 22 symptoms.
Patient self-report either through 1) written completion of the questionnaire, or 2) in-person or telephone interview with clinician or research associate.  
Administration time is 5‒10 minutes.
Raw scores can be calculated for the four domains (Physical, Cognitive, Affective and Sensory) and for the Total Score.
Cicerone KD & Kalmar K. Persistent Post Concussion Syndrome: The structure of subjective complaints after mild traumatic brain injury. J Head Trauma Rehabil. 1995;10(3):1‒17.
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