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The P300 brain potential is reduced in smokers.

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Title: The P300 brain potential is reduced in smokers.
Authors: Anokhin, A. P., Vedeniapin, A. B., Sirevaag, E. J., Bauer, L. O., O'Connor, S. J., Kuperman, S., Porjesz, B., Reich, T., Begleiter, H., Polich, J., Rohrbaugh, J. W.
Source: Psychopharmacology. 2000, Vol. 149 Issue 4, p409. 5p.
Subjects: Tobacco use, Cognition, Smoking, Evoked potentials (Electrophysiology)
Abstract: Abstract Rationale: Tobacco smoking is the most prevalent type of substance abuse, yet its biobehavioral etiology is little understood. Identification of differences between smokers and non-smokers on basic characteristics of neurocognitive functioning may help to elucidate the mechanisms of tobacco dependence. Objectives: This study assessed the relationship between smoking status and the P300 component of event-related potential (ERP) while controlling for potential confounders such as alcoholism, drug abuse, and psychopathology. Methods': The ERP responses elicited by a visual oddball task were measured at the mid-parietal site in 905 current smokers, 463 ex-smokers, and 979 never smokers. Results: P300 amplitude was significantly lower in current cigarette smokers compared to never-smokers. Ex-smokers did not differ significantly from never-smokers. P300 reduction was also associated with alcoholism, drug dependence, and family density of alcoholism. However, after controlling for smoking, only family density of alcoholism remained a significant predictor of P300 amplitude. Conclusions: The results indicate a significant effect of smoking status on P300 amplitude which is additive to family history of alcoholism and suggest that either (1) long-term tobacco smoking may produce a reversible change in brain function, or (2) reduced P300 may be a marker of risk for nicotine dependence. [ABSTRACT FROM AUTHOR]
Copyright of Psychopharmacology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The P300 brain potential is reduced in smokers.
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  Data: <searchLink fieldCode="AR" term="%22Anokhin%2C+A%2E+P%2E%22">Anokhin, A. P.</searchLink><br /><searchLink fieldCode="AR" term="%22Vedeniapin%2C+A%2E+B%2E%22">Vedeniapin, A. B.</searchLink><br /><searchLink fieldCode="AR" term="%22Sirevaag%2C+E%2E+J%2E%22">Sirevaag, E. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Bauer%2C+L%2E+O%2E%22">Bauer, L. O.</searchLink><br /><searchLink fieldCode="AR" term="%22O'Connor%2C+S%2E+J%2E%22">O'Connor, S. J.</searchLink><br /><searchLink fieldCode="AR" term="%22Kuperman%2C+S%2E%22">Kuperman, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Porjesz%2C+B%2E%22">Porjesz, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Reich%2C+T%2E%22">Reich, T.</searchLink><br /><searchLink fieldCode="AR" term="%22Begleiter%2C+H%2E%22">Begleiter, H.</searchLink><br /><searchLink fieldCode="AR" term="%22Polich%2C+J%2E%22">Polich, J.</searchLink><br /><searchLink fieldCode="AR" term="%22Rohrbaugh%2C+J%2E+W%2E%22">Rohrbaugh, J. W.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Psychopharmacology%22">Psychopharmacology</searchLink>. 2000, Vol. 149 Issue 4, p409. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Tobacco+use%22">Tobacco use</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition%22">Cognition</searchLink><br /><searchLink fieldCode="DE" term="%22Smoking%22">Smoking</searchLink><br /><searchLink fieldCode="DE" term="%22Evoked+potentials+%28Electrophysiology%29%22">Evoked potentials (Electrophysiology)</searchLink>
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  Data: Abstract Rationale: Tobacco smoking is the most prevalent type of substance abuse, yet its biobehavioral etiology is little understood. Identification of differences between smokers and non-smokers on basic characteristics of neurocognitive functioning may help to elucidate the mechanisms of tobacco dependence. Objectives: This study assessed the relationship between smoking status and the P300 component of event-related potential (ERP) while controlling for potential confounders such as alcoholism, drug abuse, and psychopathology. Methods': The ERP responses elicited by a visual oddball task were measured at the mid-parietal site in 905 current smokers, 463 ex-smokers, and 979 never smokers. Results: P300 amplitude was significantly lower in current cigarette smokers compared to never-smokers. Ex-smokers did not differ significantly from never-smokers. P300 reduction was also associated with alcoholism, drug dependence, and family density of alcoholism. However, after controlling for smoking, only family density of alcoholism remained a significant predictor of P300 amplitude. Conclusions: The results indicate a significant effect of smoking status on P300 amplitude which is additive to family history of alcoholism and suggest that either (1) long-term tobacco smoking may produce a reversible change in brain function, or (2) reduced P300 may be a marker of risk for nicotine dependence. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Psychopharmacology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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