Saville, Christopher W. N., de Morree, H. M., Dundon, Neil M., Marcora, S. M. and Klein, C. (2018). Effects of caffeine on reaction time are mediated by attentional rather than motor processes. Psychopharmacology, 235 (3). S. 749 - 760. NEW YORK: SPRINGER. ISSN 1432-2072
Full text not available from this repository.Abstract
In the present study, 15 female participants performed an oddball task after ingesting caffeine or a placebo, and electroencephalographic data were obtained. Single-trial P3b latencies locked to the stimulus and to the response were extracted and mediation models were fitted to the data to test whether caffeine's effect on RTs was mediated by its effect on either type of P3b latencies. These findings are consistent with caffeine's effect on RTs being a result of its effect on perceptual-attentional processes, rather than motor processes. The study is the first to apply mediation analysis to single-trial P3b data and this technique holds promise for mental chronometric studies into the effects of psychopharmacological agents. The R code for performing the single trial analysis and mediation analysis are included as supplementary materials.
Item Type: | Journal Article | ||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-195098 | ||||||||||||||||||||||||
DOI: | 10.1007/s00213-017-4790-7 | ||||||||||||||||||||||||
Journal or Publication Title: | Psychopharmacology | ||||||||||||||||||||||||
Volume: | 235 | ||||||||||||||||||||||||
Number: | 3 | ||||||||||||||||||||||||
Page Range: | S. 749 - 760 | ||||||||||||||||||||||||
Date: | 2018 | ||||||||||||||||||||||||
Publisher: | SPRINGER | ||||||||||||||||||||||||
Place of Publication: | NEW YORK | ||||||||||||||||||||||||
ISSN: | 1432-2072 | ||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||
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Refereed: | Yes | ||||||||||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/19509 |
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