Case Study 4: Traumatic Brain Injury (TBI)

Case Study 4: Interpretation

Performance:

• Button Press Accuracy is usually within the normal range

• Median Reaction Time is prolonged most of the times

Features:

• Patients with TBI show a decrease in P3b amplitude that is usually accompanied

by normal peak latency. It is possible that the decrease in P3b amplitude is limited

to a subset of electrodes, producing an value in the table that is normal or close to

normal, but a L/R asymmetry in P3b amplitude can be observed in the traces on

page 3 of the Patient Report

• Unless TBI is severe, N200 amplitude and latency and P3a amplitude are usually in

the normal range

EEG Features:

• In patients with TBI PAF is usually low, indicating suboptimal overall cognitive

performance