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Effects of caffeine on reaction time are mediated by attentional rather than motor processes

Saville, Christopher W. N., de Morree, H. M., Dundon, Neil M., Marcora, Samuele Maria, Klein, C. (2017) Effects of caffeine on reaction time are mediated by attentional rather than motor processes. Psychopharmacology, 235 (3). pp. 749-759. ISSN 0033-3158. (doi:10.1007/s00213-017-4790-7) (KAR id:66518)

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are unclear.


electroencephalographic data were obtained. Single-trial P3b latencies locked to the stimulus and to the response were extracted

P3b latencies.


running through the processes measured by stimulus-locked latencies. Caffeine did not affect response-locked latencies, so could

These findings are consistent with caffeine’s effect on RTs being a result of its effect on perceptual-attentional

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: Article
DOI/Identification number: 10.1007/s00213-017-4790-7
Uncontrolled keywords: Caffeine . P300 . Single trial analysis . Mediation . Event-related potentials . Reaction times
Divisions: Divisions > Division of Natural Sciences > School of Sport and Exercise Sciences
Depositing User: Samuele Marcora
Date Deposited: 23 Mar 2018 10:49 UTC
Last Modified: 16 Feb 2021 13:53 UTC
Resource URI: (The current URI for this page, for reference purposes)
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