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Journal Article

Neurocognitive impairments in non-deprived smokers-results from a population-based multi-center study on smoking-related behavior

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons71425

Wienker,  T.
Clinical Genetics (Thomas F. Wienker), Dept. of Human Molecular Genetics (Head: Hans-Hilger Ropers), Max Planck Institute for Molecular Genetics, Max Planck Society;
Institute of Medical Biometry, Informatics and Epidemiology, University of Bonn;

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Citation

Wagner, M., Schulze-Rauschenbach, S., Petrovsky, N., Brinkmeyer, J., von der Goltz, C., Grunder, G., et al. (2012). Neurocognitive impairments in non-deprived smokers-results from a population-based multi-center study on smoking-related behavior. Addiction Biology, 2012, e-e. doi:10.1111/j.1369-1600.2011.00429.x.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-EC88-D
Abstract
The aim of the present study was to examine neurocognitive function associated with chronic nicotine use. A total of 2163 healthy participants (1002 smokers, 1161 never-smoking controls) participated in a population-based case-control design. The main outcome measures were six cognitive domain factors derived from a neuropsychological test battery. In smokers, the battery was administered after controlled smoking of one cigarette. Analyses included age, sex and education as covariates. Results demonstrated small, but significant deficits in smokers for visual attention (P < 0.001) and cognitive impulsivity (P < 0.006), while verbal episodic memory, verbal fluency, verbal working memory, and Stroop-interference did not differ between groups. These attention/impulsivity deficits were also present in smokers with only a low amount of cigarette consumption. Lifetime nicotine use (pack-years) was not correlated with cognition in smokers. In conclusion, this study confirmed subtle and specific cognitive deficits in non-deprived smokers. The independence of these deficits from consumption intensity may argue for an a priori deficit of some cognitive abilities in smokers. These specific deficits may constitute intermediate phenotypes for genetic research on nicotine use.