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| Year : 2000 | Volume
: 42
| Issue : 4 | Page : 397-401 |
P300 Event Related Potential in Normal Healthy Controls of Different Age Groups
R Shukla1, J. K Trivedi2, R Singh3, Y Singh3, P Chakravorty4
1 Professor, Department of Neurology, KG 's Medical College. Lucknow-226003, India
2 Professor, Department of Psychiatry, KG 's Medical College. Lucknow-226003, India
3 Resident, Department of Psychiatry, KG 's Medical College. Lucknow-226003, India
4 Resident, Department of Neurology, KG 's Medical College. Lucknow-226003, India
Correspondence Address:
R Shukla
Professor, Department of Neurology, KG 's Medical College. Lucknow-226003
India
 Source of Support: None, Conflict of Interest: None  | Check |
PMID: 21407977 
P300 event related potential was recorded in 115 healthy controls with a mean age of35.9±14.81 years and a male : female ratio of 72 : 43. There was significant difference in the P300 latency in <40 years as compared to > 40 years group (p<0.001). There was no significant difference between males and females. There was a strong positive correlation between age and P300 latency (p<0.001). The regression equation for P300 latency was Y=287.9+1.492x with an SEE of 20.2 (where Y is the P300 latency in ms, x is the age in years, SEE is the standard error of estimate). There was a negative correlation between age and P300 amplitude which was significant in < 40 years age group while in > 40 years age group it was not significant.
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