submission - Independent Pilots Association

Druing test sessions, subjects were seated in front of the workslation i¡ a¡¡ isolate,j roon¡ frcc of
disrraction, and nære i¡srr¡cted o eomplete e¿ch t¡sk once (rasks rvete F¡esented in a randorn
ordcr 1o Prevent order effects). Each tes¡ session lasterl approximately l5 rninutcs. Sub¡ects
receiræd no fccdback drnng the study. in order ro avoid knowlodge of results affectin8
pcrformnce levels.
Proccdure
Subjeas panicipsted in a ra¡domised cross-over design rnvorving ttuee cx¡rerimenral conditions:
I ) an aJcohol intoxicarioo condiûon, 2) a placcbo condirion- and 3) a susùained wakefulncss
condition. During the *'eek prior to corr¡mencement of the experimental cooditions, all
participants were ind:r'iCuaily trained on the pcrformance 5anery'. ¡ familiarise themselves r¡-ith
the tæks and to minimis: irnprovements il performance resulring ñcm ieuning. Subjecs *ve
require'i to repeat cach tesr until their performance reacbed a plareau.
The subjects reFìc'fld to the labo¡ator) at t:00pm on the nighr pncr ro each condition Pnc¡ ro
rcriring ar I l:00pm. subjccts were rer¡uir:d to complete addiúonal pracrrce t¡ials on qach tasks.
SubjecS wcrc wokEn a'. ?.CÉam. follo*ing a nigbr of sleep, and allcued ro breakfasr and shcrre¡
prior to a bas¿line tesling sssion, u'hich surted ar 8:00a.m.
Alc oløl I nl ox ic g I tln C onùt i on
Subiects completed a performance testing se=-sion horuly. Follou:ng tie 9.00am testing sessjorr
each subject *as rcquired 1o consume an ai;oholic bcvera¡le, consistrng of ¿0 percent vodka a¡rd a