LETTER TO THE EDITOR A Response to the Paper ‘Investigation of the “Hangover” Effects of an Acute Dose of Alcohol on Psychomotor Performance’ by Lemon

We would like to thank Dr Lemon for his interest in our review and for opening up this correspondence. Nevertheless, we do not perceive any inaccuracies in our account (Stephens et al., 2008) of the paper by Lemon et al. (1993). There was no mention of BAL being zero during testing in the hangover phase in the 1993 paper, and we reported this. Furthermore, our account does not contradict what Lemon says in his letter—Lemon et al. (1993) did not find any neuropsychological effects in the hangover testing phase. Finally, our review acknowledges possible mechanisms underlying hangover beyond those closely related to alcohol consumption, including sleep deprivation. Nevertheless, it is valuable for Lemon to add to the record that BAL was indeed zero during testing in the hangover phase in Lemon et al. (1993), and it is useful to highlight that the Lemon et al. (1993) study used a demonstrably sensitive test (divided attention) that showed acute intoxication effects of alcohol and yet found no hangover effects.