We have located links that may give you full text access.
P300 and stress in mild head injury patients.
Electroencephalography and Clinical Neurophysiology 1998 November
OBJECTIVE: The P300 component of event-related potentials is affected by personal meaningfulness of the stimulus to the subject. Thus, the P300 component could provide an objective parameter in the emotional assessment of road accident mild head injury patients, when exposed to relevant stimuli.
METHODS: Thirteen patients with post-traumatic symptoms and 14 healthy controls were evaluated in this study. Two word types, distinguished by color, were presented on a computer screen in active 'oddball' paradigm conditions. In the first subtest, the targets were accident-related (stressful) words; in the second subtest, the targets were non-accident-related (neutral) words. Target (20%) and non-target (80%) were defined by word color. Data recorded from Pz were analyzed for P300 parameters.
RESULTS: Patients and controls differed in their reaction to word types (group x word main effect P = 0.0089), regardless of the oddball presentation. Overall, accident-related words produced a significantly larger P300 wave than neutral words in patients (P = 0.0001), but not in controls (P = 0.5741). Significant correlation was found between combined P300 amplitude difference (all stressful words vs. all neutral words) and the patient's Zung state anxiety score (r = 0.68, P = 0.01).
CONCLUSION: We suggest the P300 component can provide a useful, objective tool in the assessment of mild head injury patients.
METHODS: Thirteen patients with post-traumatic symptoms and 14 healthy controls were evaluated in this study. Two word types, distinguished by color, were presented on a computer screen in active 'oddball' paradigm conditions. In the first subtest, the targets were accident-related (stressful) words; in the second subtest, the targets were non-accident-related (neutral) words. Target (20%) and non-target (80%) were defined by word color. Data recorded from Pz were analyzed for P300 parameters.
RESULTS: Patients and controls differed in their reaction to word types (group x word main effect P = 0.0089), regardless of the oddball presentation. Overall, accident-related words produced a significantly larger P300 wave than neutral words in patients (P = 0.0001), but not in controls (P = 0.5741). Significant correlation was found between combined P300 amplitude difference (all stressful words vs. all neutral words) and the patient's Zung state anxiety score (r = 0.68, P = 0.01).
CONCLUSION: We suggest the P300 component can provide a useful, objective tool in the assessment of mild head injury patients.
Full text links
Trending Papers
A Personalized Approach to the Management of Congestion in Acute Heart Failure.Heart International 2023
Potential Mechanisms of the Protective Effects of the Cardiometabolic Drugs Type-2 Sodium-Glucose Transporter Inhibitors and Glucagon-like Peptide-1 Receptor Agonists in Heart Failure.International Journal of Molecular Sciences 2024 Februrary 21
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app