Differences in ERP topographies during color matching of smoking-related and neutral pictures in smokers and non-smokers.
The concept of a specific memory network that drives addictive behavior has often been discussed in relation to the phenomenon of sudden relapse into addiction after years of abstinence. But there is still a lack of data that shows a link between drug-related cue processing and specific changes of behavior in addicts. In the present study we investigated the relationship between smoking-related picture processing, performance in a color matching task, and ERP topographies. Fifteen smokers and 19 non-smoking participants performed a color matching task including monochromic pictures with smoking-related and neutral content. Smokers and non-smokers showed remarkable differences between stimulus category-related ERP topographies. Furthermore, both smokers and non-smokers showed increased reaction times during color matching when the picture contents were related to smoking behavior. The results are discussed with respect to different drug-cue-related patterns of information processing in smokers and non-smokers.
Fehr
Thorsten
T
Institute for Cognitive Neuroscience, Department of Neuropsychology/Behavioral Neurobiology, University of Bremen, Germany. fehr@uni-bremen.de
Wiedenmann
Patrick
P
Herrmann
Manfred
M
D000328:Adult; D001921:Brain / Q000503:physiopathology*; D001931:Brain Mapping; D003118:Color Perception / Q000502:physiology*; D003463:Cues; D004569:Electroencephalography / Q000379:methods; D005074:Evoked Potentials, Visual / Q000187:drug effects; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation / Q000379:methods; D011897:Random Allocation; D011930:Reaction Time; D012907:Smoking / Q000503:physiopathology* / Q000523:psychology; D018709:Statistics, Nonparametric